Home | History | Annotate | Download | only in api
      1 
      2 
      3 
      4 
      5 <!DOCTYPE html>
      6 <html lang="en">
      7 <head>
      8   <meta charset="utf-8"  />
      9   <meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1,shrink-to-fit=no"  />
     10   <title>Magick++, C++ API for ImageMagick: Image Class @ ImageMagick</title>
     11   <meta name="application-name" content="ImageMagick" />
     12   <meta name="description" content="Use ImageMagick to create, edit, compose, or convert bitmap images. You can resize your image, crop it, change its shades and colors, add captions, among other operations." />
     13   <meta name="application-url" content="https://imagemagick.org" />
     14   <meta name="generator" content="PHP" />
     15   <meta name="keywords" content="magick++, c++, api, for, imagemagick:, image, class, ImageMagick, PerlMagick, image processing, image, photo, software, Magick++, OpenMP, convert" />
     16   <meta name="rating" content="GENERAL" />
     17   <meta name="robots" content="INDEX, FOLLOW" />
     18   <meta name="generator" content="ImageMagick Studio LLC" />
     19   <meta name="author" content="ImageMagick Studio LLC" />
     20   <meta name="revisit-after" content="2 DAYS" />
     21   <meta name="resource-type" content="document" />
     22   <meta name="copyright" content="Copyright (c) 1999-2017 ImageMagick Studio LLC" />
     23   <meta name="distribution" content="Global" />
     24   <meta name="magick-serial" content="P131-S030410-R485315270133-P82224-A6668-G1245-1" />
     25   <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" />
     26   <link href="Image++.html" rel="canonical" />
     27   <link href="../../images/wand.png" rel="icon" />
     28   <link href="../../images/wand.ico" rel="shortcut icon" />
     29   <link href="../assets/magick.css" rel="stylesheet" />
     30 </head>
     31 <body>
     32   <header>
     33   <nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark">
     34     <a class="navbar-brand" href="../../"><img class="d-block" id="icon" alt="ImageMagick" width="32" height="32" src="../../images/wand.ico"/></a>
     35     <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsMagick" aria-controls="navbarsMagick" aria-expanded="false" aria-label="Toggle navigation">
     36       <span class="navbar-toggler-icon"></span>
     37     </button>
     38 
     39     <div class="navbar-collapse collapse" id="navbarsMagick" style="">
     40     <ul class="navbar-nav mr-auto">
     41       <li class="nav-item ">
     42         <a class="nav-link" href="quantize.html">Home <span class="sr-only">(current)</span></a>
     43       </li>
     44       <li class="nav-item ">
     45         <a class="nav-link" href="../../www/download.html">Download</a>
     46       </li>
     47       <li class="nav-item ">
     48         <a class="nav-link" href="../../www/command-line-tools.html">Tools</a>
     49       </li>
     50       <li class="nav-item ">
     51         <a class="nav-link" href="../../www/command-line-processing.html">Command-line</a>
     52       </li>
     53       <li class="nav-item ">
     54         <a class="nav-link" href="../../www/resources.html">Resources</a>
     55       </li>
     56       <li class="nav-item ">
     57         <a class="nav-link" href="../../www/develop.html">Develop</a>
     58       </li>
     59       <li class="nav-item">
     60         <a class="nav-link" target="_blank" href="https://imagemagick.org/discourse-server/">Community</a>
     61       </li>
     62     </ul>
     63     <form class="form-inline my-2 my-lg-0" action="https://imagemagick.org/script/search.php">
     64       <input class="form-control mr-sm-2" type="text" name="q" placeholder="Search" aria-label="Search">
     65       <button class="btn btn-outline-success my-2 my-sm-0" type="submit" name="sa">Search</button>
     66     </form>
     67     </div>
     68   </nav>
     69   <div class="container">
     70    <script async="async" src="https://localhost/pagead/js/adsbygoogle.js"></script>    <ins class="adsbygoogle"
     71          style="display:block"
     72          data-ad-client="ca-pub-3129977114552745"
     73          data-ad-slot="6345125851"
     74          data-ad-format="auto"></ins>
     75     <script>
     76       (adsbygoogle = window.adsbygoogle || []).push({});
     77     </script>
     78 
     79   </div>
     80   </header>
     81   <main class="container">
     82     <div class="magick-template">
     83 <h1> Magick::Image Class</h1>
     84 <p class="navigation-index">[<a href="Image++.html#BLOBs">BLOBs</a> &#8226; <a href="Image++.html#Constructors">Constructors</a> &#8226; <a href="Image++.html#Image%20Manipulation%20Methods">Image Manipulation Methods</a> &#8226; <a href="Image++.html#Image%20Attributes">Image Attributes</a> &#8226; <a href="Image++.html#Raw%20Image%20Pixel%20Access">Low-Level Image Pixel Access</a>]</p>
     85 <div class="doc-section">
     86 <p>Image is the primary object in Magick++ and represents
     87 a single image frame (see <a href="http://www.imagemagick.org/Magick++/ImageDesign.html">design</a> ). The
     88 <a href="http://www.imagemagick.org/Magick++/STL.html">STL interface</a> <b>must</b> be used to operate on
     89 image sequences or images (e.g. of format GIF, TIFF, MIFF, Postscript,
     90 &amp; MNG) which are comprised of multiple image frames. Individual
     91 frames of a multi-frame image may be requested by adding array-style
     92 notation to the end of the file name (e.g. "animation.gif[3]" retrieves
     93 the fourth frame of a GIF animation.  Various image manipulation
     94 operations may be applied to the image. Attributes may be set on the
     95 image to influence the operation of the manipulation operations. The <a
     96  href="http://www.imagemagick.org/Magick++/Pixels.html"> Pixels</a> class provides low-level access to
     97 image
     98 pixels. As a convenience, including <tt><font color="#663366">&lt;Magick++.h&gt;</font></tt>
     99 is sufficient in order to use the complete Magick++ API. The Magick++
    100 API is enclosed within the <i>Magick</i> namespace so you must either
    101 add the prefix "<tt> Magick::</tt> " to each class/enumeration name or
    102 add
    103 the statement "<tt> using namespace Magick;</tt>" after including the <tt>Magick++.h</tt>
    104 header.</p>
    105 <p>The preferred way to allocate Image objects is via automatic
    106 allocation (on the stack). There is no concern that allocating Image
    107 objects on the stack will excessively enlarge the stack since Magick++
    108 allocates all large data objects (such as the actual image data) from
    109 the heap. Use of automatic allocation is preferred over explicit
    110 allocation (via <i>new</i>) since it is much less error prone and
    111 allows use of C++ scoping rules to avoid memory leaks. Use of automatic
    112 allocation allows Magick++ objects to be assigned and copied just like
    113 the C++ intrinsic data types (e.g. '<i>int</i> '), leading to clear and
    114 easy to read code. Use of automatic allocation leads to naturally
    115 exception-safe code since if an exception is thrown, the object is
    116 automagically deallocated once the stack unwinds past the scope of the
    117 allocation (not the case for objects allocated via <i>new</i> ). </p>
    118 <p>Image is very easy to use. For example, here is a the source to a
    119 program which reads an image, crops it, and writes it to a new file
    120 (the
    121 exception handling is optional but strongly recommended): </p>
    122 <pre class="code">
    123 #include &lt;Magick++.h> 
    124 #include &lt;iostream> 
    125 using namespace std; 
    126 using namespace Magick; 
    127 int main(int argc,char **argv) 
    128 { 
    129   InitializeMagick(*argv);
    130 
    131   // Construct the image object. Separating image construction from the 
    132   // the read operation ensures that a failure to read the image file 
    133   // doesn't render the image object useless. 
    134   Image image;
    135   try { 
    136     // Read a file into image object 
    137     image.read( "girl.gif" );
    138 
    139     // Crop the image to specified size (width, height, xOffset, yOffset)
    140     image.crop( Geometry(100,100, 100, 100) );
    141 
    142     // Write the image to a file 
    143     image.write( "x.gif" ); 
    144   } 
    145   catch( Exception &error_ ) 
    146     { 
    147       cout &lt;&lt; "Caught exception: " &lt;&lt; error_.what() &lt;&lt; endl; 
    148       return 1; 
    149     } 
    150   return 0; 
    151 }
    152 </pre>
    153 The following is the source to a program which illustrates the use of
    154 Magick++'s efficient reference-counted assignment and copy-constructor
    155 operations which minimize use of memory and eliminate unnecessary copy
    156 operations (allowing Image objects to be efficiently assigned, and
    157 copied into containers).  The program accomplishes the
    158 following:
    159 <ol>
    160   <li> Read master image.</li>
    161   <li> Assign master image to second image.</li>
    162   <li> Resize second image to the size 640x480.</li>
    163   <li> Assign master image to a third image.</li>
    164   <li> Resize third image to the size 800x600.</li>
    165   <li> Write the second image to a file.</li>
    166   <li> Write the third image to a file.</li>
    167 </ol>
    168 <pre class="code">
    169 #include <Magick++.h> 
    170 #include <iostream> 
    171 using namespace std; 
    172 using namespace Magick; 
    173 int main(int argc,char **argv) 
    174 { 
    175   InitializeMagick(*argv);
    176 
    177   Image master("horse.jpg"); 
    178   Image second = master; 
    179   second.resize("640x480"); 
    180   Image third = master; 
    181   third.resize("800x600"); 
    182   second.write("horse640x480.jpg"); 
    183   third.write("horse800x600.jpg"); 
    184   return 0; 
    185 }
    186 </pre>
    187 During the entire operation, a maximum of three images exist in memory
    188 and the image data is never copied.
    189 <p>The following is the source for another simple program which creates
    190 a 100 by 100 pixel white image with a red pixel in the center and
    191 writes it to a file: </p>
    192 <pre class="code">
    193 #include <Magick++.h> 
    194 using namespace std; 
    195 using namespace Magick; 
    196 int main(int argc,char **argv) 
    197 { 
    198   InitializeMagick(*argv);
    199   Image image( "100x100", "white" ); 
    200   image.pixelColor( 49, 49, "red" ); 
    201   image.write( "red_pixel.png" ); 
    202   return 0; 
    203 }
    204 </pre>
    205 If you wanted to change the color image to grayscale, you could add the
    206 lines:
    207 <pre class="code">
    208 image.quantizeColorSpace( GRAYColorspace ); 
    209 image.quantizeColors( 256 ); 
    210 image.quantize( );
    211 </pre>
    212 </p>
    213 <p>or, more simply: </p>
    214 <pre class="code">
    215  image.type( GrayscaleType );
    216 </pre>
    217 <p>prior to writing the image. </p>
    218 </div>
    219 <h2> <a name="BLOBs"></a> BLOBs</h2>
    220 <div class="doc-section">
    221 While encoded images (e.g. JPEG) are most often written-to and
    222 read-from a disk file, encoded images may also reside in memory.
    223 Encoded
    224 images in memory are known as BLOBs (Binary Large OBjects) and may be
    225 represented using the <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a> class. The encoded
    226 image may be initially placed in memory by reading it directly from a
    227 file, reading the image from a database, memory-mapped from a disk
    228 file, or could be written to memory by Magick++. Once the encoded image
    229 has been placed within a Blob, it may be read into a Magick++ Image via
    230 a <a href="Image++.html#constructor_blob">constructor</a> or <a href="Image++.html#read">read()</a>
    231 . Likewise, a Magick++ image may be written to a Blob via <a
    232  href="Image++.html#write"> write()</a> .
    233 <p>An example of using Image to write to a Blob follows: <br>
    234   </p>
    235 <pre class="code">
    236 #include <Magick++.h> 
    237 using namespace std; 
    238 using namespace Magick; 
    239 int main(int argc,char **argv) 
    240 { 
    241   InitializeMagick(*argv);
    242 
    243   // Read GIF file from disk 
    244   Image image( "giraffe.gif" );
    245   // Write to BLOB in JPEG format 
    246   Blob blob; 
    247   image.magick( "JPEG" ) // Set JPEG output format 
    248   image.write( &blob );
    249 
    250   [ Use BLOB data (in JPEG format) here ]
    251 
    252   return 0; 
    253 }
    254 </pre>
    255 <p><br>
    256 likewise, to read an image from a Blob, you could use one of the
    257 following examples: </p>
    258 <p>[ <font color="#000000">Entry condition for the following examples
    259 is that <i>data</i> is pointer to encoded image data and <i>length</i>
    260 represents the size of the data</font> ] </p>
    261 <pre class="code">
    262 Blob blob( data, length ); 
    263 Image image( blob );
    264 </pre>
    265 or
    266 <pre class="code">
    267 Blob blob( data, length ); 
    268 Image image; 
    269 image.read( blob);
    270 </pre>
    271 some images do not contain their size or format so the size and format must be specified in advance:
    272 <pre class="code">
    273 Blob blob( data, length ); 
    274 Image image; 
    275 image.size( "640x480") 
    276 image.magick( "RGBA" ); 
    277 image.read( blob);
    278 </pre>
    279 </div>
    280 <h2> <a name="Constructors"></a> Constructors</h2>
    281 <div class="doc-section">
    282 Image may be constructed in a number of ways. It may be constructed
    283 from a file, a URL, or an encoded image (e.g. JPEG) contained in an
    284 in-memory <a href="http://www.imagemagick.org/Magick++/Blob.html"> BLOB</a> . The available Image
    285 constructors are shown in the following table: <br>
    286   <br>
    287  
    288 <ul><table bgcolor="#ffffff" border="1" width="100%">
    289   <caption><b>Image Constructors</b></caption> <tbody>
    290     <tr>
    291       <td>
    292       <center><b>Signature</b></center>
    293       </td>
    294       <td>
    295       <center><b>Description</b></center>
    296       </td>
    297     </tr>
    298     <tr>
    299       <td><font size="-1">const std::string &amp;imageSpec_</font></td>
    300       <td><font size="-1">Construct Image by reading from file or URL
    301 specified by <i>imageSpec_</i>. Use array notation (e.g. filename[9])
    302 to select a specific scene from a multi-frame image.</font></td>
    303     </tr>
    304     <tr>
    305       <td><font size="-1">const Geometry &amp;size_, const <a
    306  href="http://www.imagemagick.org/Magick++/Color.html"> Color</a> &amp;color_</font></td>
    307       <td><font size="-1">Construct a blank image canvas of specified
    308 size and color</font></td>
    309     </tr>
    310     <tr>
    311       <td><a name="constructor_blob"></a> <font size="-1">const <a
    312  href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a> &amp;blob_</font></td>
    313       <td rowspan="5"><font size="-1">Construct Image by reading from
    314 encoded image data contained in an in-memory <a href="http://www.imagemagick.org/Magick++/Blob.html">BLOB</a>
    315 . Depending on the constructor arguments, the Blob <a href="Image++.html#size">size</a>
    316 , <a href="Image++.html#depth">depth</a> , <a href="Image++.html#magick">magick</a> (format)
    317 may
    318 also be specified. Some image formats require that size be specified.
    319 The default ImageMagick uses for depth depends on the compiled-in
    320 Quantum size (8 or 16).  If ImageMagick's Quantum size does not
    321 match that of the image, the depth may need to be specified.
    322 ImageMagick can usually automagically detect the image's format.
    323 When a format can't be automagically detected, the format (<a
    324  href="Image++.html#magick">magick</a> ) must be specified.</font></td>
    325     </tr>
    326     <tr>
    327       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a>
    328 &amp;blob_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> &amp;size_</font></td>
    329     </tr>
    330     <tr>
    331       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a>
    332 &amp;blob_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> &amp;size,
    333 size_t depth</font></td>
    334     </tr>
    335     <tr>
    336       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a>
    337 &amp;blob_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> &amp;size,
    338 size_t depth_, const string &amp;magick_</font></td>
    339     </tr>
    340     <tr>
    341       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a>
    342 &amp;blob_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> &amp;size,
    343 const
    344 string &amp;magick_</font></td>
    345     </tr>
    346     <tr>
    347       <td><font size="-1">const size_t width_, </font> <br>
    348       <font size="-1">const size_t height_,</font> <br>
    349       <font size="-1">std::string map_,</font> <br>
    350       <font size="-1">const <a href="http://www.imagemagick.org/Magick++/Enumerations.html#StorageType">
    351 StorageType</a> type_,</font> <br>
    352       <font size="-1">const void *pixels_</font></td>
    353       <td><font size="-1">Construct a new Image based on an array of
    354 image pixels. The pixel data must be in scanline order top-to-bottom.
    355 The data can be character, short int, integer, float, or double. Float
    356 and double require the pixels to be normalized [0..1]. The other types
    357 are [0..MaxRGB].  For example, to create a 640x480 image from
    358 unsigned red-green-blue character data, use</font>
    359       <p><font size="-1">   Image image( 640, 480, "RGB",
    360 0, pixels );</font> </p>
    361       <p><font size="-1">The parameters are as follows:</font> <br>
    362  
    363       <table border="0" width="100%">
    364         <tbody>
    365           <tr>
    366             <td><font size="-1">width_</font></td>
    367             <td><font size="-1">Width in pixels of the image.</font></td>
    368           </tr>
    369           <tr>
    370             <td><font size="-1">height_</font></td>
    371             <td><font size="-1">Height in pixels of the image.</font></td>
    372           </tr>
    373           <tr>
    374             <td><font size="-1">map_</font></td>
    375             <td><font size="-1">This character string can be any
    376 combination or order of R = red, G = green, B = blue, A = alpha, C =
    377 cyan, Y = yellow M = magenta, and K = black. The ordering reflects the
    378 order of the pixels in the supplied pixel array.</font></td>
    379           </tr>
    380           <tr>
    381             <td><font size="-1">type_</font></td>
    382             <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#StorageType">Pixel
    383 storage type</a> (CharPixel, ShortPixel, IntegerPixel, FloatPixel, or
    384 DoublePixel)</font></td>
    385           </tr>
    386           <tr>
    387             <td><font size="-1">pixels_</font></td>
    388             <td><font size="-1">This array of values contain the pixel
    389 components as defined by the map_ and type_ parameters. The length of
    390 the arrays must equal the area specified by the width_ and height_
    391 values and type_ parameters.</font></td>
    392           </tr>
    393         </tbody>
    394       </table>
    395       </p>
    396       </td>
    397     </tr>
    398   </tbody>
    399 </table></ul>
    400 </div>
    401 <h2> <a name="Image Manipulation Methods"></a> Image Manipulation Methods</h2>
    402 <div class="doc-section">
    403 <i>Image</i> supports access to all the single-image (versus
    404 image-list) manipulation operations provided by the ImageMagick
    405 library. If you
    406 must process a multi-image file (such as an animation), the <a
    407  href="http://www.imagemagick.org/Magick++/STL.html"> STL interface</a> , which provides a multi-image
    408 abstraction on top of <i>Image</i>, must be used.
    409 <p>Image manipulation methods are very easy to use.  For example: </p>
    410 <pre class="code">
    411 Image image; 
    412 image.read("myImage.tiff"); 
    413 image.addNoise(GaussianNoise); 
    414 image.write("myImage.tiff");
    415 </pre>
    416 adds gaussian noise to the image file "myImage.tiff".
    417 <p>The operations supported by Image are shown in the following table: <br>
    418  
    419 <ul><table nosave="" border="1">
    420   <caption><b>Image Image Manipulation Methods</b></caption> <tbody>
    421     <tr align="center">
    422       <td><b>Method</b></td>
    423       <td><b>Signature(s)</b></td>
    424       <td><b>Description</b></td>
    425     </tr>
    426     <tr>
    427       <td style="text-align: center;" valign="middle">
    428       <div align="center"><a name="adaptiveThreshold"></a> <font
    429  size="-1">adaptiveThreshold<br>
    430       </font></div>
    431       </td>
    432       <td valign="middle"><font size="-1">size_t width, size_t
    433 height, size_t offset = 0<br>
    434       </font></td>
    435       <td valign="top"><font size="-1">Apply adaptive thresholding to
    436 the image. Adaptive thresholding is useful if the ideal threshold level
    437 is not known in advance, or if the illumination gradient is not
    438 constant
    439 across the image. Adaptive thresholding works by evaluating the mean
    440 (average) of a pixel region (size specified by <i>width</i> and <i>height</i>)
    441 and using the mean as the thresholding value. In order to remove
    442 residual noise from the background, the threshold may be adjusted by
    443 subtracting a constant <i>offset</i> (default zero) from the mean to
    444 compute the threshold.</font><br>
    445       </td>
    446     </tr>
    447     <tr>
    448       <td style="text-align: center;">
    449       <center><a name="addNoise"></a> <font size="-1">addNoise</font></center>
    450       </td>
    451       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#NoiseType">NoiseType</a>
    452 noiseType_</font></td>
    453       <td><font size="-1">Add noise to image with specified noise type.</font></td>
    454     </tr>
    455     <tr>
    456       <td style="vertical-align: middle; text-align: center;"><small><a
    457  name="addNoiseChannel"></a>addNoiseChannel<br>
    458       </small></td>
    459       <td style="vertical-align: middle;"><small>const ChannelType
    460 channel_, const NoiseType noiseType_<br>
    461       </small></td>
    462       <td style="vertical-align: middle;"><small>Add noise to an image
    463 channel with the specified noise type.</small><font size="-1"> The <span
    464  style="font-style: italic;">channel_</span> parameter specifies the
    465 channel to add noise to.  The </font><small>noiseType_ parameter
    466 specifies the type of noise.<br>
    467       </small></td>
    468     </tr>
    469     <tr>
    470       <td style="vertical-align: middle; text-align: center;"><small><a
    471  name="affineTransform"></a>affineTransform<br>
    472       </small></td>
    473       <td style="vertical-align: middle;"><small>const DrawableAffine
    474 &amp;affine<br>
    475       </small></td>
    476       <td style="vertical-align: middle;"><small>Transform image by
    477 specified affine (or free transform) matrix.<br>
    478       </small></td>
    479     </tr>
    480     <tr>
    481       <td style="text-align: center;" rowspan="4">
    482       <center><a name="annotate"></a> <font size="-1">annotate</font></center>
    483       </td>
    484       <td><font size="-1">const std::string &amp;text_, const <a
    485  href="http://www.imagemagick.org/Magick++/Geometry.html"> Geometry</a> &amp;location_</font></td>
    486       <td><font size="-1">Annotate using specified text, and placement
    487 location</font></td>
    488     </tr>
    489     <tr>
    490       <td><font size="-1">string text_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    491 &amp;boundingArea_, <a href="http://www.imagemagick.org/Magick++/Enumerations.html#GravityType">GravityType</a>
    492 gravity_</font></td>
    493       <td><font size="-1">Annotate using specified text, bounding area,
    494 and placement gravity. If <i>boundingArea_</i> is invalid, then
    495 bounding area is entire image.</font></td>
    496     </tr>
    497     <tr>
    498       <td><font size="-1">const std::string &amp;text_, const <a
    499  href="http://www.imagemagick.org/Magick++/Geometry.html"> Geometry</a> &amp;boundingArea_, <a
    500  href="http://www.imagemagick.org/Magick++/Enumerations.html#GravityType">GravityType</a> gravity_, double
    501 degrees_, </font></td>
    502       <td><font size="-1">Annotate with text using specified text,
    503 bounding area, placement gravity, and rotation. If <i>boundingArea_</i>
    504 is invalid, then bounding area is entire image.</font></td>
    505     </tr>
    506     <tr>
    507       <td><font size="-1">const std::string &amp;text_, <a
    508  href="http://www.imagemagick.org/Magick++/Enumerations.html#GravityType"> GravityType</a> gravity_</font></td>
    509       <td><font size="-1">Annotate with text (bounding area is entire
    510 image) and placement gravity.</font></td>
    511     </tr>
    512     <tr>
    513       <td style="text-align: center;">
    514       <center><a name="blur"></a> <font size="-1">blur</font></center>
    515       </td>
    516       <td><font size="-1">const double radius_ = 1, const double sigma_
    517 = 0.5</font></td>
    518       <td><font size="-1">Blur image. The <i>radius_ </i>parameter
    519 specifies the radius of the Gaussian, in pixels, not counting the
    520 center
    521 pixel.  The <i>sigma_</i> parameter specifies the standard
    522 deviation of the Laplacian, in pixels.</font></td>
    523     </tr>
    524     <tr>
    525       <td style="vertical-align: middle; text-align: center;"><small><a
    526  name="blurChannel"></a>blurChannel<br>
    527       </small></td>
    528       <td style="vertical-align: middle;"><small>const ChannelType
    529 channel_, const double radius_ = 0.0, const double sigma_ = 1.0<br>
    530       </small></td>
    531       <td style="vertical-align: middle;"><font size="-1">Blur an image
    532 channel. The <span style="font-style: italic;">channel_</span>
    533 parameter specifies the channel to blur. The <i>radius_ </i>parameter
    534 specifies the radius of the Gaussian, in pixels, not counting the
    535 center
    536 pixel.  The <i>sigma_</i> parameter specifies the standard
    537 deviation of the Laplacian, in pixels.</font></td>
    538     </tr>
    539     <tr>
    540       <td style="text-align: center;">
    541       <center><a name="border"></a> <font size="-1">border</font></center>
    542       </td>
    543       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    544 &amp;geometry_ = "6x6+0+0"</font></td>
    545       <td><font size="-1">Border image (add border to image).  The
    546 color of the border is specified by the <i>borderColor</i> attribute.</font></td>
    547     </tr>
    548     <tr>
    549       <td style="text-align: center;">
    550       <center><a name="cdl"></a> <font size="-1">cdl</font></center>
    551       </td>
    552       <td><font size="-1">const std::string &amp;cdl_</font></td>
    553       <td><font size="-1">color correct with a color decision list. See <a href="http://en.wikipedia.org/wiki/ASC_CDL">http://en.wikipedia.org/wiki/ASC_CDL</a> for details.</font></td>
    554     </tr>
    555     <tr>
    556       <td style="text-align: center;">
    557       <center><a name="channel"></a> <font size="-1">channel</font></center>
    558       </td>
    559       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#ChannelType">ChannelType</a>
    560 layer_</font></td>
    561       <td><font size="-1">Extract channel from image. Use this option
    562 to extract a particular channel from  the image.  <i>MatteChannel</i>
    563   for  example, is useful for extracting the opacity values
    564 from an image.</font></td>
    565     </tr>
    566     <tr>
    567       <td style="text-align: center;">
    568       <center><a name="charcoal"></a> <font size="-1">charcoal</font></center>
    569       </td>
    570       <td><font size="-1">const double radius_ = 1, const double sigma_
    571 = 0.5</font></td>
    572       <td><font size="-1">Charcoal effect image (looks like charcoal
    573 sketch). The <i>radius_</i> parameter specifies the radius of the
    574 Gaussian, in pixels, not counting the center pixel.  The <i>sigma_</i>
    575 parameter specifies the standard deviation of the Laplacian, in pixels.</font></td>
    576     </tr>
    577     <tr>
    578       <td style="text-align: center;">
    579       <center><a name="chop"></a> <font size="-1">chop</font></center>
    580       </td>
    581       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    582 &amp;geometry_</font></td>
    583       <td><font size="-1">Chop image (remove vertical or horizontal
    584 subregion of image)</font></td>
    585     </tr>
    586     <tr>
    587       <td style="text-align: center;">
    588       <center><a name="colorize"></a> <font size="-1">colorize</font></center>
    589       </td>
    590       <td><font size="-1">const unsigned int opacityRed_, const
    591 unsigned int opacityGreen_, const unsigned int opacityBlue_, const
    592 Color &amp;penColor_</font></td>
    593       <td><font size="-1">Colorize image with pen color, using
    594 specified percent opacity for red, green, and blue quantums.</font></td>
    595     </tr>
    596     <tr>
    597       <td style="text-align: center;">
    598       <center><a name="colorMatrix"></a> <font size="-1">colorMatrix</font></center>
    599       </td>
    600       <td><font size="-1">const size_t order_, const double *color_matrix_</font></td>
    601       <td><font size="-1">apply color correction to the image.</font></td>
    602     </tr>
    603     <tr>
    604       <td style="text-align: center;">
    605       <center><a name="comment"></a> <font size="-1">comment</font></center>
    606       </td>
    607       <td><font size="-1">const std::string &amp;comment_</font></td>
    608       <td><font size="-1">Comment image (add comment string to
    609 image).  By default, each image is commented with its file name.
    610 Use  this  method to  assign a specific comment to the
    611 image.  Optionally you can include the image filename, type,
    612 width, height, or other  image  attributes by embedding <a
    613  href="http://www.imagemagick.org/Magick++/FormatCharacters.html">special format characters.</a> </font></td>
    614     </tr>
    615     <tr>
    616       <td style="text-align: center;" valign="middle"><font size="-1"><a
    617  name="compare"></a> compare<br>
    618       </font></td>
    619       <td valign="middle"><font size="-1">const Image &amp;reference_<br>
    620       </font></td>
    621       <td valign="top"><font size="-1">Compare current image with
    622 another image. Sets <a href="Image++.html#meanErrorPerPixel">meanErrorPerPixel</a>
    623 , <a href="Image++.html#normalizedMaxError">normalizedMaxError</a> , and <a
    624  href="Image++.html#normalizedMeanError">normalizedMeanError</a> in the current
    625 image. False is returned if the images are identical. An ErrorOption
    626 exception is thrown if the reference image columns, rows, colorspace,
    627 or
    628 matte differ from the current image.</font><br>
    629       </td>
    630     </tr>
    631     <tr>
    632       <td style="text-align: center;" rowspan="3">
    633       <center><a name="composite"></a> <font size="-1">composite</font></center>
    634       </td>
    635       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Image.html">Image</a>
    636 &amp;compositeImage_, ssize_t xOffset_, ssize_t yOffset_, <a
    637  href="http://www.imagemagick.org/Magick++/Enumerations.html#CompositeOperator"> CompositeOperator</a>
    638 compose_ = <i>InCompositeOp</i></font></td>
    639       <td><font size="-1">Compose an image onto the current image at
    640 offset specified by <i>xOffset_</i>, <i>yOffset_ </i>using the
    641 composition algorithm specified by <i>compose_</i>. </font></td>
    642     </tr>
    643     <tr>
    644       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Image.html">Image</a>
    645 &amp;compositeImage_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    646 &amp;offset_, <a href="http://www.imagemagick.org/Magick++/Enumerations.html#CompositeOperator">CompositeOperator</a>
    647 compose_ = <i>InCompositeOp</i></font></td>
    648       <td><font size="-1">Compose an image onto the current image at
    649 offset specified by <i>offset_</i> using the composition algorithm
    650 specified by <i>compose_</i> . </font></td>
    651     </tr>
    652     <tr>
    653       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Image.html">Image</a>
    654 &amp;compositeImage_, <a href="http://www.imagemagick.org/Magick++/Enumerations.html#GravityType">GravityType</a>
    655 gravity_, <a href="http://www.imagemagick.org/Magick++/Enumerations.html#CompositeOperator">CompositeOperator</a>
    656 compose_ = <i>InCompositeOp</i></font></td>
    657       <td><font size="-1">Compose an image onto the current image with
    658 placement specified by <i>gravity_ </i>using the composition
    659 algorithm
    660 specified by <i>compose_</i>. </font></td>
    661     </tr>
    662     <tr>
    663       <td style="text-align: center;">
    664       <center><a name="contrast"></a> <font size="-1">contrast</font></center>
    665       </td>
    666       <td><font size="-1">size_t sharpen_</font></td>
    667       <td><font size="-1">Contrast image (enhance intensity differences
    668 in image)</font></td>
    669     </tr>
    670     <tr>
    671       <td style="text-align: center;">
    672       <center><a name="convolve"></a> <font size="-1">convolve</font></center>
    673       </td>
    674       <td><font size="-1">size_t order_, const double *kernel_</font></td>
    675       <td><font size="-1">Convolve image.  Applies a user-specified
    676 convolution to the image. The <i>order_</i> parameter represents the
    677 number of columns and rows in the filter kernel, and <i>kernel_</i>
    678 is a two-dimensional array of doubles representing the convolution
    679 kernel to apply.</font></td>
    680     </tr>
    681     <tr>
    682       <td style="text-align: center;">
    683       <center><a name="crop"></a> <font size="-1">crop</font></center>
    684       </td>
    685       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    686 &amp;geometry_</font></td>
    687       <td><font size="-1">Crop image (subregion of original image)</font></td>
    688     </tr>
    689     <tr>
    690       <td style="text-align: center;">
    691       <center><a name="cycleColormap"></a> <font size="-1">cycleColormap</font></center>
    692       </td>
    693       <td><font size="-1">int amount_</font></td>
    694       <td><font size="-1">Cycle image colormap</font></td>
    695     </tr>
    696     <tr>
    697       <td style="text-align: center;">
    698       <center><a name="despeckle"></a> <font size="-1">despeckle</font></center>
    699       </td>
    700       <td><font size="-1">void</font></td>
    701       <td><font size="-1">Despeckle image (reduce speckle noise)</font></td>
    702     </tr>
    703     <tr>
    704       <td style="text-align: center;">
    705       <center><a name="display"></a> <font size="-1">display</font></center>
    706       </td>
    707       <td><font size="-1">void</font></td>
    708       <td><font size="-1">Display image on screen.</font> <br>
    709       <font size="-1"><b><font color="#ff0000">Caution: </font></b> if
    710 an image format is is not compatible with the display visual (e.g.
    711 JPEG on a colormapped display) then the original image will be
    712 altered. Use a copy of the original if this is a problem.</font></td>
    713     </tr>
    714     <tr>
    715       <td>
    716       <center><a name="distort"></a> <font size="-1">distort</font></center>
    717       </td>
    718       <td><font size="-1">const DistortImageMethod method, const size_t number_arguments, const double *arguments, const bool bestfit = false </font></td>
    719       <td><font size="-1">Distort image.  Applies a user-specified
    720 distortion to the image.</font></td>
    721     </tr>
    722     <tr>
    723       <td style="text-align: center;" rowspan="2">
    724       <center><a name="draw"></a> <font size="-1">draw</font></center>
    725       </td>
    726       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Drawable.html">Drawable</a>
    727 &amp;drawable_</font></td>
    728       <td><font size="-1">Draw shape or text on image.</font></td>
    729     </tr>
    730     <tr>
    731       <td><font size="-1">const std::list&lt;<a href="http://www.imagemagick.org/Magick++/Drawable.html">Drawable</a>
    732 &gt; &amp;drawable_</font></td>
    733       <td><font size="-1">Draw shapes or text on image using a set of
    734 Drawable objects contained in an STL list. Use of this method improves
    735 drawing performance and allows batching draw objects together in a
    736 list for repeated use.</font></td>
    737     </tr>
    738     <tr>
    739       <td style="text-align: center;">
    740       <center><a name="edge"></a> <font size="-1">edge</font></center>
    741       </td>
    742       <td><font size="-1">size_t radius_ = 0.0</font></td>
    743       <td><font size="-1">Edge image (hilight edges in image). 
    744 The radius is the radius of the pixel neighborhood.. Specify a radius
    745 of zero for automatic radius selection.</font></td>
    746     </tr>
    747     <tr>
    748       <td style="text-align: center;">
    749       <center><a name="emboss"></a> <font size="-1">emboss</font></center>
    750       </td>
    751       <td><font size="-1">const double radius_ = 1, const double sigma_
    752 = 0.5</font></td>
    753       <td><font size="-1">Emboss image (hilight edges with 3D effect).
    754 The <i> radius_</i> parameter specifies the radius of the Gaussian, in
    755 pixels, not counting the center pixel.  The <i>sigma_</i>
    756 parameter specifies the standard deviation of the Laplacian, in pixels.</font></td>
    757     </tr>
    758     <tr>
    759       <td style="text-align: center;">
    760       <center><a name="enhance"></a> <font size="-1">enhance</font></center>
    761       </td>
    762       <td><font size="-1">void</font></td>
    763       <td><font size="-1">Enhance image (minimize noise)</font></td>
    764     </tr>
    765     <tr>
    766       <td style="text-align: center;">
    767       <center><a name="equalize"></a> <font size="-1">equalize</font></center>
    768       </td>
    769       <td><font size="-1">void</font></td>
    770       <td><font size="-1">Equalize image (histogram equalization)</font></td>
    771     </tr>
    772     <tr>
    773       <td style="text-align: center;">
    774       <center><a name="erase"></a> <font size="-1">erase</font></center>
    775       </td>
    776       <td><font size="-1">void</font></td>
    777       <td><font size="-1">Set all image pixels to the current
    778 background color.</font></td>
    779     </tr>
    780     <tr>
    781       <td style="text-align: center;" rowspan="4">
    782       <center><a name="extent"></a> <font size="-1">extent</font></td>
    783       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html"> Geometry</a> &amp;geometry_</font></td>
    784       <td rowspan="2"><font size="-1">extends the image as defined by the geometry, gravity, and image background color.</font></td>
    785     </tr>
    786     <tr>
    787       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    788 &amp;geometry_, const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> &amp;backgroundColor_</font></td>
    789     </tr>
    790     <tr>
    791       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html"> Geometry</a> &amp;geometry_, const <a href="../../api/Enumerations.html#GravityType">GravityType</a>
    792 &amp;gravity_</font></td>
    793       <td rowspan="2"><font size="-1">extends the image as defined by the geometry, gravity, and image background color.</font></td>
    794     </tr>
    795     <tr>
    796       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    797 &amp;geometry_, const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> &amp;backgroundColor_,
    798 const <a href="http://www.imagemagick.org/Magick++/Enumerations.html#GravityType">GravityType</a> &amp;gravity_</font></td>
    799     </tr>
    800     <tr>
    801       <td style="text-align: center;">
    802       <center><a name="flip"></a> <font size="-1">flip</font></center>
    803       </td>
    804       <td><font size="-1">void</font></td>
    805       <td><font size="-1">Flip image (reflect each scanline in the
    806 vertical direction)</font></td>
    807     </tr>
    808     <tr>
    809       <td style="text-align: center;" rowspan="4">
    810       <center><a name="floodFillColor"></a> <font size="-1">floodFill-</font>
    811       <br>
    812       <font size="-1">Color</font></center>
    813       </td>
    814       <td><font size="-1">ssize_t x_, ssize_t y_, const <a
    815  href="http://www.imagemagick.org/Magick++/Color.html"> Color</a> &amp;fillColor_</font></td>
    816       <td rowspan="2"><font size="-1">Flood-fill color across pixels
    817 that match the color of the target pixel and are neighbors of the
    818 target pixel. Uses current fuzz setting when determining color match.</font></td>
    819     </tr>
    820     <tr>
    821       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    822 &amp;point_, const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> &amp;fillColor_</font></td>
    823     </tr>
    824     <tr>
    825       <td><font size="-1">ssize_t x_, ssize_t y_, const <a
    826  href="http://www.imagemagick.org/Magick++/Color.html"> Color</a> &amp;fillColor_, const <a
    827  href="http://www.imagemagick.org/Magick++/Color.html">Color</a>
    828 &amp;borderColor_</font></td>
    829       <td rowspan="2"><font size="-1">Flood-fill color across pixels
    830 starting at target-pixel and stopping at pixels matching specified
    831 border color. Uses current fuzz setting when determining color match.</font></td>
    832     </tr>
    833     <tr>
    834       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    835 &amp;point_, const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> &amp;fillColor_,
    836 const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> &amp;borderColor_</font></td>
    837     </tr>
    838     <tr>
    839       <td style="text-align: center;"><a name="floodFillOpacity"></a> <font
    840  size="-1">floodFillOpacity</font></td>
    841       <td><font size="-1">const long x_, const long y_, const unsigned int
    842 opacity_, const PaintMethod method_</font></td>
    843       <td><font size="-1">Floodfill pixels matching color (within fuzz
    844 factor) of target pixel(x,y) with replacement opacity value using
    845 method.</font></td>
    846     </tr>
    847     <tr>
    848       <td style="text-align: center;" rowspan="4">
    849       <center><a name="floodFillTexture"></a> <font size="-1">floodFill-</font>
    850       <br>
    851       <font size="-1">Texture</font></center>
    852       </td>
    853       <td><font size="-1">ssize_t x_, ssize_t y_,  const
    854 Image &amp;texture_</font></td>
    855       <td rowspan="2"><font size="-1">Flood-fill texture across pixels
    856 that match the color of the target pixel and are neighbors of the
    857 target pixel. Uses current fuzz setting when determining color match.</font></td>
    858     </tr>
    859     <tr>
    860       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    861 &amp;point_, const Image &amp;texture_</font></td>
    862     </tr>
    863     <tr>
    864       <td><font size="-1">ssize_t x_, ssize_t y_, const Image
    865 &amp;texture_, const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> &amp;borderColor_</font></td>
    866       <td rowspan="2"><font size="-1">Flood-fill texture across pixels
    867 starting at target-pixel and stopping at pixels matching specified
    868 border color. Uses current fuzz setting when determining color match.</font></td>
    869     </tr>
    870     <tr>
    871       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    872 &amp;point_, const Image &amp;texture_, const <a href="http://www.imagemagick.org/Magick++/Color.html">
    873 Color</a>
    874 &amp;borderColor_</font></td>
    875     </tr>
    876     <tr>
    877       <td style="text-align: center;">
    878       <center><a name="flop"></a> <font size="-1">flop</font></center>
    879       </td>
    880       <td><font size="-1">void </font></td>
    881       <td><font size="-1">Flop image (reflect each scanline in the
    882 horizontal direction)</font></td>
    883     </tr>
    884     <tr>
    885       <td style="text-align: center;" rowspan="2">
    886       <center><a name="frame"></a> <font size="-1">frame</font></center>
    887       </td>
    888       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
    889 &amp;geometry_ = "25x25+6+6"</font></td>
    890       <td rowspan="2"><font size="-1">Add decorative frame around image</font></td>
    891     </tr>
    892     <tr>
    893       <td><font size="-1">size_t width_, size_t height_,
    894 ssize_t x_, ssize_t y_, ssize_t innerBevel_ = 0, ssize_t outerBevel_ = 0</font></td>
    895     </tr>
    896     <tr>
    897       <td>
    898       <center><a name="fx"></a> <font size="-1">fx</font></center>
    899       </td>
    900       <td><font size="-1">const std::string expression, const Magick::ChannelType channel</font></td>
    901       <td><font size="-1">Fx image.  Applies a mathematical
    902 expression to the image.</font></td>
    903     </tr>
    904     <tr>
    905       <td style="text-align: center;" rowspan="2">
    906       <center><a name="gamma"></a> <font size="-1">gamma</font></center>
    907       </td>
    908       <td><font size="-1">double gamma_</font></td>
    909       <td><font size="-1">Gamma correct image (uniform red, green, and
    910 blue correction).</font></td>
    911     </tr>
    912     <tr>
    913       <td><font size="-1">double gammaRed_, double gammaGreen_, double
    914 gammaBlue_</font></td>
    915       <td><font size="-1">Gamma correct red, green, and blue channels
    916 of image.</font></td>
    917     </tr>
    918     <tr>
    919       <td style="text-align: center;">
    920       <center><a name="gaussianBlur"></a> <font size="-1">gaussianBlur</font></center>
    921       </td>
    922       <td><font size="-1">const double width_, const double sigma_</font></td>
    923       <td><font size="-1">Gaussian blur image. The number of neighbor
    924 pixels to be included in the convolution mask is specified by
    925 'width_'.  For example, a width of one gives a (standard) 3x3
    926 convolution mask. The standard deviation of the gaussian bell curve is
    927 specified by 'sigma_'.</font></td>
    928     </tr>
    929     <tr>
    930       <td style="vertical-align: middle; text-align: center;"><small><a
    931  name="gaussianBlurChannel"></a>gaussianBlurChannel<br>
    932       </small></td>
    933       <td style="vertical-align: middle;"><small>const ChannelType
    934 channel_, const double radius_ = 0.0, const double sigma_ = 1.0<br>
    935       </small></td>
    936       <td style="vertical-align: middle;"><font size="-1">Gaussian blur
    937 an image channel. </font><font size="-1">The <span
    938  style="font-style: italic;">channel_</span> parameter specifies the
    939 channel to blur. </font><font size="-1">The number of neighbor
    940 pixels to be included in the convolution mask is specified by
    941 'width_'.  For example, a width of one gives a (standard) 3x3
    942 convolution mask. The standard deviation of the gaussian bell curve is
    943 specified by 'sigma_'.</font></td>
    944     </tr>
    945     <tr>
    946       <td style="text-align: center;" valign="middle"><font size="-1"><a
    947  name="haldClut"></a> haldClut<br>
    948       </font></td>
    949       <td valign="middle"><font size="-1">const Image &amp;reference_<br>
    950       </font></td>
    951       <td valign="top"><font size="-1">apply a Hald color lookup table to the image.</font><br>
    952       </td>
    953     </tr>
    954     <tr>
    955       <td style="text-align: center;">
    956       <center><a name="implode"></a> <font size="-1">implode</font></center>
    957       </td>
    958       <td><font size="-1">const double factor_</font></td>
    959       <td><font size="-1">Implode image (special effect)</font></td>
    960     </tr>
    961     <tr>
    962       <td style="text-align: center;">
    963       <center><a name="inverseFourierTransform"></a> <font size="-1">inverseFourierTransform</font></center>
    964       </td>
    965       <td><font size="-1">const Image &amp;phaseImage_, const bool magnitude_</font></td>
    966       <td><font size="-1">implements the inverse discrete Fourier transform (DFT) of the image either as a magnitude / phase or real / imaginary image pair.</font></td>
    967     </tr>
    968     <tr>
    969       <td style="text-align: center;">
    970       <center><a name="label"></a> <font size="-1">label</font></center>
    971       </td>
    972       <td><font size="-1">const string &amp;label_</font></td>
    973       <td><font size="-1">Assign a label to an image. Use this option
    974 to  assign  a  specific label to the image. Optionally
    975 you can include the image filename, type, width, height, or scene
    976 number in the label by embedding  <a href="http://www.imagemagick.org/Magick++/FormatCharacters.html">
    977 special format characters.</a> If the first character of string is @,
    978 the
    979 image label is read from a file titled by the remaining characters in
    980 the string. When converting to Postscript, use this  option to
    981 specify a header string to print above the image.</font></td>
    982     </tr>
    983     <tr>
    984       <td style="vertical-align: top; text-align: center;"><small><a
    985  name="level"></a>level<br>
    986       </small></td>
    987       <td style="vertical-align: top;"><small>const double black_point,
    988 const double white_point, const double mid_point=1.0<br>
    989       </small></td>
    990       <td style="vertical-align: top;"><small>Level image. Adjust the
    991 levels of the image by scaling the colors falling between specified
    992 white and black points to the full available quantum range. The
    993 parameters provided represent the black, mid (gamma), and white
    994 points.  The black point specifies the darkest color in the image.
    995 Colors darker than the black point are set to zero. Mid point (gamma)
    996 specifies a gamma correction to apply to the image. White point
    997 specifies the lightest color in the image.  Colors brighter than
    998 the white point are set to the maximum quantum value. The black and
    999 white point have the valid range 0 to MaxRGB while mid (gamma) has a
   1000 useful range of 0 to ten.<br>
   1001       </small></td>
   1002     </tr>
   1003     <tr>
   1004       <td style="vertical-align: middle; text-align: center;"><small><a
   1005  name="levelChannel"></a>levelChannel<br>
   1006       </small></td>
   1007       <td style="vertical-align: middle;"><small>const ChannelType
   1008 channel, const double black_point, const double white_point, const
   1009 double mid_point=1.0<br>
   1010       </small></td>
   1011       <td style="vertical-align: middle;"><small>Level image channel.
   1012 Adjust the levels of the image channel by scaling the values falling
   1013 between specified white and black points to the full available quantum
   1014 range. The parameters provided represent the black, mid (gamma), and
   1015 white points. The black point specifies the darkest color in the image.
   1016 Colors darker than the black point are set to zero. Mid point (gamma)
   1017 specifies a gamma correction to apply to the image. White point
   1018 specifies the lightest color in the image. Colors brighter than the
   1019 white point are set to the maximum quantum value. The black and white
   1020 point have the valid range 0 to MaxRGB while mid (gamma) has a useful
   1021 range of 0 to ten.<br>
   1022       </small></td>
   1023     </tr>
   1024     <tr>
   1025       <td style="text-align: center;">
   1026       <center><a name="magnify"></a> <font size="-1">magnify</font></center>
   1027       </td>
   1028       <td><font size="-1">void</font></td>
   1029       <td><font size="-1">Magnify image by integral size</font></td>
   1030     </tr>
   1031     <tr>
   1032       <td style="text-align: center;">
   1033       <center><a name="map"></a> <font size="-1">map</font></center>
   1034       </td>
   1035       <td><font size="-1">const Image &amp;mapImage_ , bool dither_ =
   1036 false</font></td>
   1037       <td><font size="-1">Remap image colors with closest color from
   1038 reference image. Set dither_ to <i>true</i> in to apply
   1039 Floyd/Steinberg
   1040 error diffusion to the image. By default, color reduction chooses an
   1041 optimal  set  of colors that best represent the original
   1042 image. Alternatively, you can  choose  a 
   1043 particular  set  of colors  from  an image file
   1044 with this option.</font></td>
   1045     </tr>
   1046     <tr>
   1047       <td style="text-align: center;">
   1048       <center><a name="matteFloodfill"></a> <font size="-1">matteFloodfill</font></center>
   1049       </td>
   1050       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a>
   1051 &amp;target_, const unsigned int  opacity_, const ssize_t x_, const
   1052 ssize_t
   1053 y_, <a href="http://www.imagemagick.org/Magick++/Enumerations.html#PaintMethod">PaintMethod</a> method_</font></td>
   1054       <td><font size="-1">Floodfill designated area with a replacement
   1055 opacity value.</font></td>
   1056     </tr>
   1057     <tr>
   1058       <td style="text-align: center;"><a name="medianFilter"></a> <font
   1059  size="-1">medianFilter</font></td>
   1060       <td><font size="-1">const double radius_ = 0.0</font></td>
   1061       <td><font size="-1">Filter image by replacing each pixel
   1062 component with the median color in a circular neighborhood</font></td>
   1063     </tr>
   1064     <tr>
   1065       <td style="text-align: center;">
   1066       <center><a name="mergeLayers"></a> <font size="-1">mergeLayers</font></center>
   1067       </td>
   1068       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#LayerMethod">LayerMethod</a>
   1069 noiseType_</font></td>
   1070       <td><font size="-1">handle multiple images forming a set of image layers or animation frames.</font></td>
   1071     </tr>
   1072     <tr>
   1073       <td style="text-align: center;">
   1074       <center><a name="minify"></a> <font size="-1">minify</font></center>
   1075       </td>
   1076       <td><font size="-1">void</font></td>
   1077       <td><font size="-1">Reduce image by integral size</font></td>
   1078     </tr>
   1079     <tr>
   1080       <td style="text-align: center;"><a name="modifyImage"></a> <font
   1081  size="-1">modifyImage</font></td>
   1082       <td><font size="-1">void</font></td>
   1083       <td><font size="-1">Prepare to update image. Ensures that there
   1084 is only one reference to the underlying image so that the underlying
   1085 image may be safely modified without effecting previous generations of
   1086 the image. Copies the underlying image to a new image if necessary.</font></td>
   1087     </tr>
   1088     <tr>
   1089       <td style="text-align: center;">
   1090       <center><a name="modulate"></a> <font size="-1">modulate</font></center>
   1091       </td>
   1092       <td><font size="-1">double brightness_, double saturation_,
   1093 double hue_</font></td>
   1094       <td><font size="-1">Modulate percent hue, saturation, and
   1095 brightness of an image. Modulation of saturation and brightness is as a
   1096 ratio of the current value (1.0 for no change). Modulation of hue is an
   1097 absolute rotation of -180 degrees to +180 degrees from the current
   1098 position corresponding to an argument range of 0 to 2.0 (1.0 for no
   1099 change).</font></td>
   1100     </tr>
   1101     <tr>
   1102       <td style="vertical-align: middle; text-align: center;"><small><a
   1103  name="motionBlur"></a>motionBlur<br>
   1104       </small></td>
   1105       <td style="vertical-align: middle;"><small>const double radius_,
   1106 const double sigma_, const double angle_<br>
   1107       </small></td>
   1108       <td style="vertical-align: middle;"><small>Motion blur image with
   1109 specified blur factor. The radius_ parameter specifies the radius of
   1110 the Gaussian, in pixels, not counting the center pixel.  The
   1111 sigma_ parameter specifies the standard deviation of the Laplacian, in
   1112 pixels. The angle_ parameter specifies the angle the object appears to
   1113 be coming from (zero degrees is from the right).<br>
   1114       </small></td>
   1115     </tr>
   1116     <tr>
   1117       <td style="text-align: center;">
   1118       <center><a name="negate"></a> <font size="-1">negate</font></center>
   1119       </td>
   1120       <td><font size="-1">bool grayscale_ = false</font></td>
   1121       <td><font size="-1">Negate colors in image.  Replace every
   1122 pixel with its complementary color (white becomes black, yellow becomes
   1123 blue, etc.).  Set grayscale to only negate grayscale values in
   1124 image.</font></td>
   1125     </tr>
   1126     <tr>
   1127       <td style="text-align: center;">
   1128       <center><a name="normalize"></a> <font size="-1">normalize</font></center>
   1129       </td>
   1130       <td><font size="-1">void</font></td>
   1131       <td><font size="-1">Normalize image (increase contrast by
   1132 normalizing the pixel values to span the full range of color values).</font></td>
   1133     </tr>
   1134     <tr>
   1135       <td style="text-align: center;">
   1136       <center><a name="oilPaint"></a> <font size="-1">oilPaint</font></center>
   1137       </td>
   1138       <td><font size="-1">size_t radius_ = 3</font></td>
   1139       <td><font size="-1">Oilpaint image (image looks like oil painting)</font></td>
   1140     </tr>
   1141     <tr>
   1142       <td style="text-align: center;">
   1143       <center><a name="opacity"></a> <font size="-1">opacity</font></center>
   1144       </td>
   1145       <td><font size="-1">unsigned int opacity_</font></td>
   1146       <td><font size="-1">Set or attenuate the opacity channel in the
   1147 image. If the image pixels are opaque then they are set to the
   1148 specified
   1149 opacity value, otherwise they are blended with the supplied opacity
   1150 value.  The value of opacity_ ranges from 0 (completely opaque) to
   1151       <i>MaxRGB</i>
   1152 . The defines <i>OpaqueOpacity</i> and <i>TransparentOpacity</i> are
   1153 available to specify completely opaque or completely transparent,
   1154 respectively.</font></td>
   1155     </tr>
   1156     <tr>
   1157       <td style="text-align: center;">
   1158       <center><a name="opaque"></a> <font size="-1">opaque</font></center>
   1159       </td>
   1160       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a>
   1161 &amp;opaqueColor_, const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> &amp;penColor_</font></td>
   1162       <td><font size="-1">Change color of pixels matching opaqueColor_
   1163 to specified penColor_.</font></td>
   1164     </tr>
   1165     <tr nosave="">
   1166       <td style="text-align: center;" rowspan="2" nosave="">
   1167       <center><a name="ping"></a> <font size="-1">ping</font></center>
   1168       </td>
   1169       <td><font size="-1">const std::string &amp;imageSpec_</font></td>
   1170       <td rowspan="2" nosave=""><font size="-1">Ping is similar to read
   1171 except only enough of the image is read to determine the image columns,
   1172 rows, and filesize.  The <a href="Image++.html#columns">columns</a> </font>,
   1173       <font size="-1"><a href="Image++.html#rows">rows</a> , and <a
   1174  href="Image++.html#fileSize">fileSize</a>
   1175 attributes are valid after invoking ping.  The image data is not
   1176 valid after calling ping.</font></td>
   1177     </tr>
   1178     <tr>
   1179       <td><font size="-1">const Blob &amp;blob_</font></td>
   1180     </tr>
   1181     <tr>
   1182       <td style="vertical-align: middle; text-align: center;"><small><a
   1183  name="process"></a>process<br>
   1184       </small></td>
   1185       <td style="vertical-align: middle;"><small>std::string name_,
   1186 const ssize_t argc_, char **argv_<br>
   1187       </small></td>
   1188       <td style="vertical-align: middle;"><small>Execute the named
   1189 process module, passing any arguments via an argument vector, with
   1190 argc_
   1191 specifying the number of arguments in the vector, and argv_ passing the
   1192 address of an array of null-terminated C strings which constitute the
   1193 argument vector. An exception is thrown if the requested process module
   1194 does not exist, fails to load, or fails during execution.</small><br>
   1195       </td>
   1196     </tr>
   1197     <tr>
   1198       <td style="text-align: center;">
   1199       <center><a name="quantize"></a> <font size="-1">quantize</font></center>
   1200       </td>
   1201       <td><font size="-1">bool measureError_ = false</font></td>
   1202       <td><font size="-1">Quantize image (reduce number of colors). Set
   1203 measureError_ to true in order to calculate error attributes.</font></td>
   1204     </tr>
   1205     <tr>
   1206       <td style="text-align: center;">
   1207       <center><a name="raise"></a> <font size="-1">raise</font></center>
   1208       </td>
   1209       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   1210 &amp;geometry_ = "6x6+0+0",  bool raisedFlag_ =  false</font></td>
   1211       <td><font size="-1">Raise image (lighten or darken the edges of
   1212 an image to give a 3-D raised or lowered effect)</font></td>
   1213     </tr>
   1214     <tr>
   1215       <td style="text-align: center;" rowspan="8">
   1216       <center><a name="read"></a> <font size="-1">read</font></center>
   1217       </td>
   1218       <td><font size="-1">const string &amp;imageSpec_</font></td>
   1219       <td><font size="-1">Read image into current object</font></td>
   1220     </tr>
   1221     <tr>
   1222       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   1223 &amp;size_, const std::string &amp;imageSpec_</font></td>
   1224       <td><font size="-1">Read image of specified size into current
   1225 object. This form is useful for images that do not specify their size
   1226 or to specify a size hint for decoding an image. For example, when
   1227 reading a Photo CD, JBIG, or JPEG image, a size request causes the
   1228 library to return an image which is the next resolution greater or
   1229 equal to the specified size. This may result in memory and time savings.</font></td>
   1230     </tr>
   1231     <tr>
   1232       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a> &amp;blob_</font></td>
   1233       <td rowspan="5"><font size="-1">Read encoded image of specified
   1234 size from an in-memory <a href="http://www.imagemagick.org/Magick++/Blob.html">BLOB</a> into current
   1235 object. Depending on the method arguments, the Blob size, depth, and
   1236 format may also be specified. Some image formats require that size be
   1237 specified. The default ImageMagick uses for depth depends on its
   1238 Quantum size (8 or 16).  If ImageMagick's Quantum size does not
   1239 match that of the image, the depth may need to be specified.
   1240 ImageMagick can usually automagically detect the image's format.
   1241 When
   1242 a format can't be automagically detected, the format must be specified.</font></td>
   1243     </tr>
   1244     <tr>
   1245       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a>
   1246 &amp;blob_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> &amp;size_</font></td>
   1247     </tr>
   1248     <tr>
   1249       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a>
   1250 &amp;blob_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> &amp;size_,
   1251 size_t depth_</font></td>
   1252     </tr>
   1253     <tr>
   1254       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a>
   1255 &amp;blob_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> &amp;size_,
   1256 size_t depth_, const string &amp;magick_ </font></td>
   1257     </tr>
   1258     <tr>
   1259       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a>
   1260 &amp;blob_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> &amp;size_,
   1261 const
   1262 string &amp;magick_</font></td>
   1263     </tr>
   1264     <tr>
   1265       <td><font size="-1">const size_t width_, const size_t
   1266 height_, std::string map_, const StorageType type_, const void *pixels_</font></td>
   1267       <td><font size="-1">Read image based on an array of image pixels.
   1268 The pixel data must be in scanline order top-to-bottom. The data can be
   1269 character, short int, integer, float, or double. Float and double
   1270 require the pixels to be normalized [0..1]. The other types are
   1271 [0..MaxRGB].  For example, to create a 640x480 image from
   1272 unsigned red-green-blue character data, use</font>
   1273       <p><font size="-1">  image.read( 640, 480, "RGB", CharPixel,
   1274 pixels );</font> </p>
   1275       <p><font size="-1">The parameters are as follows:</font> <br>
   1276  
   1277       <table border="0" width="100%">
   1278         <tbody>
   1279           <tr>
   1280             <td><font size="-1">width_</font></td>
   1281             <td><font size="-1">Width in pixels of the image.</font></td>
   1282           </tr>
   1283           <tr>
   1284             <td><font size="-1">height_</font></td>
   1285             <td><font size="-1">Height in pixels of the image.</font></td>
   1286           </tr>
   1287           <tr>
   1288             <td><font size="-1">map_</font></td>
   1289             <td><font size="-1">This character string can be any
   1290 combination or order of R = red, G = green, B = blue, A = alpha, C =
   1291 cyan, Y = yellow M = magenta, and K = black. The ordering reflects the
   1292 order of the pixels in the supplied pixel array.</font></td>
   1293           </tr>
   1294           <tr>
   1295             <td><font size="-1">type_</font></td>
   1296             <td><font size="-1">Pixel storage type (CharPixel,
   1297 ShortPixel, IntegerPixel, FloatPixel, or DoublePixel)</font></td>
   1298           </tr>
   1299           <tr>
   1300             <td><font size="-1">pixels_</font></td>
   1301             <td><font size="-1">This array of values contain the pixel
   1302 components as defined by the map_ and type_ parameters. The length of
   1303 the arrays must equal the area specified by the width_ and height_
   1304 values and type_ parameters.</font></td>
   1305           </tr>
   1306         </tbody>
   1307       </table>
   1308       </p>
   1309       </td>
   1310     </tr>
   1311     <tr>
   1312       <td style="text-align: center;">
   1313       <center><a name="reduceNoise"></a> <font size="-1">reduceNoise</font></center>
   1314       </td>
   1315       <td><font size="-1">const double order_</font></td>
   1316       <td><font size="-1">reduce noise in image using a noise peak elimination filter.</font></td>
   1317     </tr>
   1318     <tr>
   1319       <td style="vertical-align: middle; text-align: center;"><small><a
   1320  name="randomThreshold"></a>randomThreshold<br>
   1321       </small></td>
   1322       <td style="vertical-align: middle;"><small>const Geometry
   1323 &amp;thresholds_<br>
   1324       </small></td>
   1325       <td style="vertical-align: middle;"><small>Random threshold the
   1326 image. Changes the value of individual pixels based on the intensity of
   1327 each pixel compared to a random threshold.  The result is a
   1328 low-contrast, two color image.  The thresholds_ argument is a
   1329 geometry containing LOWxHIGH thresholds.  If the string contains
   1330 2x2, 3x3, or 4x4, then an ordered dither of order 2, 3, or 4 will be
   1331 performed instead. This is a very fast alternative to 'quantize' based
   1332 dithering.<br>
   1333       </small></td>
   1334     </tr>
   1335     <tr>
   1336       <td style="vertical-align: middle; text-align: center;"><small><a
   1337  name="randomThresholdChannel"></a>randomThresholdChannel<br>
   1338       </small></td>
   1339       <td style="vertical-align: middle;"><small>const Geometry
   1340 &amp;thresholds_, const ChannelType channel_<br>
   1341       </small></td>
   1342       <td style="vertical-align: middle;"><small>Random threshold an
   1343 image channel. Similar to <a href="Image++.html#randomThreshold">randomThreshold</a>()
   1344 but restricted to the specified channel.<br>
   1345       </small></td>
   1346     </tr>
   1347     <tr>
   1348       <td style="text-align: center;">
   1349       <center><a name="roll"></a> <font size="-1">roll</font></center>
   1350       </td>
   1351       <td><font size="-1">int columns_, ssize_t rows_</font></td>
   1352       <td><font size="-1">Roll image (rolls image vertically and
   1353 horizontally) by specified number of columns and rows)</font></td>
   1354     </tr>
   1355     <tr>
   1356       <td style="text-align: center;">
   1357       <center><a name="rotate"></a> <font size="-1">rotate</font></center>
   1358       </td>
   1359       <td><font size="-1">double degrees_</font></td>
   1360       <td><font size="-1">Rotate image counter-clockwise by specified
   1361 number of degrees.</font></td>
   1362     </tr>
   1363     <tr>
   1364       <td style="text-align: center;">
   1365       <center><a name="sample"></a> <font size="-1">sample</font></center>
   1366       </td>
   1367       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   1368 &amp;geometry_ </font></td>
   1369       <td><font size="-1">Resize image by using pixel sampling algorithm</font></td>
   1370     </tr>
   1371     <tr>
   1372       <td style="text-align: center;">
   1373       <center><a name="scale"></a> <font size="-1">scale</font></center>
   1374       </td>
   1375       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   1376 &amp;geometry_</font></td>
   1377       <td><font size="-1">Resize image by using simple ratio algorithm</font></td>
   1378     </tr>
   1379     <tr>
   1380       <td style="text-align: center;">
   1381       <center><a name="segment"></a> <font size="-1">segment</font></center>
   1382       </td>
   1383       <td><font size="-1">double clusterThreshold_ = 1.0,</font> <br>
   1384       <font size="-1">double smoothingThreshold_ = 1.5</font></td>
   1385       <td><font size="-1">Segment (coalesce similar image components)
   1386 by analyzing the histograms of the color components and identifying
   1387 units that are homogeneous with the fuzzy c-means technique. Also uses <i>quantizeColorSpace</i>
   1388 and <i>verbose</i> image attributes. Specify <i> clusterThreshold_</i>
   1389 ,
   1390 as the number  of  pixels  each cluster  must
   1391 exceed
   1392 the cluster threshold to be considered valid. <i>SmoothingThreshold_</i>
   1393 eliminates noise in the  second derivative of the histogram. As
   1394 the
   1395 value is  increased, you can  expect  a  smoother
   1396 second derivative.  The default is 1.5.</font></td>
   1397     </tr>
   1398     <tr>
   1399       <td style="text-align: center;">
   1400       <center><a name="shade"></a> <font size="-1">shade</font></center>
   1401       </td>
   1402       <td><font size="-1">double azimuth_ = 30, double elevation_ = 30,</font>
   1403       <br>
   1404       <font size="-1">bool colorShading_ = false</font></td>
   1405       <td><font size="-1">Shade image using distant light source.
   1406 Specify <i> azimuth_</i> and <i>elevation_</i> as the 
   1407 position  of  the light source. By default, the shading
   1408 results as a grayscale image.. Set c<i>olorShading_</i> to <i>true</i>
   1409 to
   1410 shade the red, green, and blue components of the image.</font></td>
   1411     </tr>
   1412     <tr>
   1413       <td style="text-align: center;">
   1414       <center><a name="shadow"></a> <font size="-1">shadow</font></center>
   1415       </td>
   1416       <td><font size="-1">const double percent_opacity = 80, const double sigma_
   1417 = 0.5, const ssize_t x_ = 0, const ssize_t y_ = 0</font></td>
   1418       <td><font size="-1">simulate an image shadow</font></td>
   1419     </tr>
   1420     <tr>
   1421       <td style="text-align: center;">
   1422       <center><a name="sharpen"></a> <font size="-1">sharpen</font></center>
   1423       </td>
   1424       <td><font size="-1">const double radius_ = 1, const double sigma_
   1425 = 0.5</font></td>
   1426       <td><font size="-1">Sharpen pixels in image.  The <i>radius_</i>
   1427 parameter specifies the radius of the Gaussian, in pixels, not counting
   1428 the center pixel.  The <i>sigma_</i> parameter specifies the
   1429 standard deviation of the Laplacian, in pixels.</font></td>
   1430     </tr>
   1431     <tr>
   1432       <td style="vertical-align: middle; text-align: center;"><small><a
   1433  name="sharpenChannel"></a>sharpenChannel<br>
   1434       </small></td>
   1435       <td style="vertical-align: middle;"><small>const ChannelType
   1436 channel_, const double radius_ = 0.0, const double sigma_ = 1.0<br>
   1437       </small></td>
   1438       <td style="vertical-align: middle;"><font size="-1">Sharpen pixel
   1439 quantums in an image channel  The <span
   1440  style="font-style: italic;">channel_</span> parameter specifies the
   1441 channel to sharpen..  The <i>radius_</i>
   1442 parameter specifies the radius of the Gaussian, in pixels, not counting
   1443 the center pixel.  The <i>sigma_</i> parameter specifies the
   1444 standard deviation of the Laplacian, in pixels.</font></td>
   1445     </tr>
   1446     <tr>
   1447       <td style="text-align: center;">
   1448       <center><a name="shave"></a> <font size="-1">shave</font></center>
   1449       </td>
   1450       <td><font size="-1">const Geometry &amp;geometry_</font></td>
   1451       <td><font size="-1">Shave pixels from image edges.</font></td>
   1452     </tr>
   1453     <tr>
   1454       <td style="text-align: center;">
   1455       <center><a name="shear"></a> <font size="-1">shear</font></center>
   1456       </td>
   1457       <td><font size="-1">double xShearAngle_, double yShearAngle_</font></td>
   1458       <td><font size="-1">Shear image (create parallelogram by sliding
   1459 image by X or Y axis).  Shearing slides one edge of an image along
   1460 the X  or  Y axis,  creating  a
   1461 parallelogram.  An X direction shear slides an edge along the X
   1462 axis, while  a  Y  direction shear  slides 
   1463 an edge along the Y axis.  The amount of the shear is controlled
   1464 by a shear angle.  For X direction  shears,  x 
   1465 degrees is measured relative to the Y axis, and similarly, for Y
   1466 direction shears  y  degrees is measured relative to the X
   1467 axis. Empty triangles left over from shearing the  image  are
   1468 filled  with  the  color  defined as <i>borderColor</i>. </font></td>
   1469     </tr>
   1470     <tr>
   1471       <td style="text-align: center;">
   1472       <center><a name="solarize"></a> <font size="-1">solarize</font></center>
   1473       </td>
   1474       <td><font size="-1">double factor_ = 50.0</font></td>
   1475       <td><font size="-1">Solarize image (similar to effect seen when
   1476 exposing a photographic film to light during the development process)</font></td>
   1477     </tr>
   1478     <tr>
   1479       <td style="text-align: center;">
   1480       <center><a name="splice"></a> <font size="-1">splice</font></center>
   1481       </td>
   1482       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   1483 &amp;geometry_</font></td>
   1484       <td><font size="-1">splice the background color into the image</font></td>
   1485     </tr>
   1486     <tr>
   1487       <td style="text-align: center;">
   1488       <center><a name="spread"></a> <font size="-1">spread</font></center>
   1489       </td>
   1490       <td><font size="-1">size_t amount_ = 3</font></td>
   1491       <td><font size="-1">Spread pixels randomly within image by
   1492 specified amount</font></td>
   1493     </tr>
   1494     <tr>
   1495       <td style="text-align: center;">
   1496       <center><a name="stegano"></a> <font size="-1">stegano</font></center>
   1497       </td>
   1498       <td><font size="-1">const Image &amp;watermark_</font></td>
   1499       <td><font size="-1">Add a digital watermark to the image (based
   1500 on second image)</font></td>
   1501     </tr>
   1502     <tr>
   1503       <td>
   1504       <center><a name="sparseColor"></a> <font size="-1">sparseColor</font></center>
   1505       </td>
   1506       <td><font size="-1">const ChannelType channel, const SparseColorMethod method, const size_t number_arguments, const double *arguments </font></td>
   1507       <td><font size="-1">Sparse color image, given a set of coordinates, interpolates the colors found at those coordinates, across the whole image, using various methods.</font></td>
   1508     </tr>
   1509     <tr>
   1510       <td style="text-align: center;">
   1511       <center><a name="statistics"></a> <font size="-1">statistics</font></center>
   1512       </td>
   1513       <td><font size="-1">ImageStatistics *statistics</font></td>
   1514       <td><font size="-1">Obtain image statistics. Statistics are normalized to the range of 0.0 to 1.0 and are output to the specified ImageStatistics structure.  The structure includes members maximum, minimum, mean, standard_deviation, and variance for each of these channels: red, green, blue, and opacity (e.g. statistics->red.maximum).</font></td>
   1515     </tr>
   1516     <tr>
   1517       <td style="text-align: center;">
   1518       <center><a name="stereo"></a> <font size="-1">stereo</font></center>
   1519       </td>
   1520       <td><font size="-1">const Image &amp;rightImage_</font></td>
   1521       <td><font size="-1">Create an image which appears in stereo when
   1522 viewed with red-blue glasses (Red image on left, blue on right)</font></td>
   1523     </tr>
   1524     <tr>
   1525       <td style="text-align: center;">
   1526       <center><a name="swirl"></a> <font size="-1">swirl</font></center>
   1527       </td>
   1528       <td><font size="-1">double degrees_</font></td>
   1529       <td><font size="-1">Swirl image (image pixels are rotated by
   1530 degrees)</font></td>
   1531     </tr>
   1532     <tr>
   1533       <td style="text-align: center;">
   1534       <center><a name="texture"></a> <font size="-1">texture</font></center>
   1535       </td>
   1536       <td><font size="-1">const Image &amp;texture_</font></td>
   1537       <td><font size="-1">Layer a texture on pixels matching image
   1538 background color.</font></td>
   1539     </tr>
   1540     <tr>
   1541       <td style="text-align: center;">
   1542       <center><a name="threshold"></a> <font size="-1">threshold</font></center>
   1543       </td>
   1544       <td><font size="-1">double threshold_</font></td>
   1545       <td><font size="-1">Threshold image</font></td>
   1546     </tr>
   1547     <tr>
   1548       <td style="text-align: center;" rowspan="2">
   1549       <center><a name="transform"></a> <font size="-1">transform</font></center>
   1550       </td>
   1551       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   1552 &amp;imageGeometry_</font></td>
   1553       <td rowspan="2"><font size="-1">Transform image based on image
   1554 and crop geometries. Crop geometry is optional.</font></td>
   1555     </tr>
   1556     <tr>
   1557       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   1558 &amp;imageGeometry_, const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   1559 &amp;cropGeometry_ </font></td>
   1560     </tr>
   1561     <tr>
   1562       <td style="text-align: center;">
   1563       <center><a name="transparent"></a> <font size="-1">transparent</font></center>
   1564       </td>
   1565       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a>
   1566 &amp;color_</font></td>
   1567       <td><font size="-1">Add matte image to image, setting pixels
   1568 matching color to transparent.</font></td>
   1569     </tr>
   1570     <tr>
   1571       <td style="text-align: center;">
   1572       <center><a name="trim"></a> <font size="-1">trim</font></center>
   1573       </td>
   1574       <td><font size="-1">void</font></td>
   1575       <td><font size="-1">Trim edges that are the background color from
   1576 the image.</font></td>
   1577     </tr>
   1578     <tr>
   1579       <td style="text-align: center;">
   1580       <center><a name="unsharpmask"></a> <font size="-1">unsharpmask</font></center>
   1581       </td>
   1582       <td><font size="-1">double radius_, double sigma_, double
   1583 amount_, double threshold_</font></td>
   1584       <td><font size="-1">Sharpen the image using the unsharp mask
   1585 algorithm. The <i>radius</i>_
   1586 parameter specifies the radius of the Gaussian, in pixels, not
   1587 counting the center pixel. The <i>sigma</i>_ parameter specifies the
   1588 standard deviation of the Gaussian, in pixels. The <i>amount</i>_
   1589 parameter specifies the percentage of the difference between the
   1590 original and the blur image that is added back into the original. The <i>threshold</i>_
   1591 parameter specifies the threshold in pixels needed to apply the
   1592 difference amount.</font></td>
   1593     </tr>
   1594     <tr>
   1595       <td style="vertical-align: middle; text-align: center;"><small><a
   1596  name="unsharpmaskChannel"></a>unsharpmaskChannel<br>
   1597       </small></td>
   1598       <td style="vertical-align: middle;"><small>const ChannelType
   1599 channel_, const double radius_, const double sigma_, const double
   1600 amount_, const double threshold_<br>
   1601       </small></td>
   1602       <td style="vertical-align: middle;"><small>Sharpen an image
   1603 channel using the unsharp mask algorithm. The <span
   1604  style="font-style: italic;">channel_</span> parameter specifies the
   1605 channel to sharpen. </small><font size="-1">The <i>radius</i>_
   1606 parameter specifies the radius of the Gaussian, in pixels, not
   1607 counting the center pixel. The <i>sigma</i>_ parameter specifies the
   1608 standard deviation of the Gaussian, in pixels. The <i>amount</i>_
   1609 parameter specifies the percentage of the difference between the
   1610 original and the blur image that is added back into the original. The <i>threshold</i>_
   1611 parameter specifies the threshold in pixels needed to apply the
   1612 difference amount.</font></td>
   1613     </tr>
   1614     <tr>
   1615       <td style="text-align: center;">
   1616       <center><a name="wave"></a> <font size="-1">wave</font></center>
   1617       </td>
   1618       <td><font size="-1">double amplitude_ = 25.0, double wavelength_
   1619 = 150.0</font></td>
   1620       <td><font size="-1">Alter an image along a sine wave.</font></td>
   1621     </tr>
   1622     <tr>
   1623       <td style="text-align: center;" rowspan="5">
   1624       <center><a name="write"></a> <font size="-1">write</font></center>
   1625       </td>
   1626       <td><font size="-1">const string &amp;imageSpec_</font></td>
   1627       <td><font size="-1">Write image to a file using filename i<i>mageSpec_</i>
   1628 .</font> <br>
   1629       <font size="-1"><b><font color="#ff0000">Caution: </font></b> if
   1630 an image format is selected which is capable of supporting fewer
   1631 colors than the original image or quantization has been requested, the
   1632 original image will be quantized to fewer colors. Use a copy of the
   1633 original if this is a problem.</font></td>
   1634     </tr>
   1635     <tr>
   1636       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a> *blob_</font></td>
   1637       <td rowspan="3"><font size="-1">Write image to a in-memory <a
   1638  href="http://www.imagemagick.org/Magick++/Blob.html"> BLOB</a> stored in <i>blob_</i>. The <i>magick</i>_
   1639 parameter specifies the image format to write (defaults to <a
   1640  href="Image++.html#magick">magick</a> ). The depth_ parameter species the image
   1641 depth (defaults to <a href="Image++.html#depth"> depth</a> ).</font> <br>
   1642       <font size="-1"><b><font color="#ff0000">Caution: </font></b> if
   1643 an image format is selected which is capable of supporting fewer
   1644 colors than the original image or quantization has been requested, the
   1645 original image will be quantized to fewer colors. Use a copy of the
   1646 original if this is a problem.</font></td>
   1647     </tr>
   1648     <tr>
   1649       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a> *blob_,
   1650 std::string &amp;magick_</font></td>
   1651     </tr>
   1652     <tr>
   1653       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a> *blob_,
   1654 std::string &amp;magick_, size_t depth_</font></td>
   1655     </tr>
   1656     <tr>
   1657       <td><font size="-1">const ssize_t x_, const ssize_t y_, const size_t
   1658 columns_, const size_t rows_, const std::string &amp;map_,
   1659 const StorageType type_, void *pixels_</font></td>
   1660       <td><font size="-1">Write pixel data into a buffer you supply.
   1661 The data is saved either as char, short int, integer, float or double
   1662 format in the order specified by the type_ parameter. For example, we
   1663 want to extract scanline 1 of a 640x480 image as character data in
   1664 red-green-blue order:</font>
   1665       <p><font size="-1">  image.write(0,0,640,1,"RGB",0,pixels);</font>
   1666       </p>
   1667       <p><font size="-1">The parameters are as follows:</font> <br>
   1668  
   1669       <table border="0" width="100%">
   1670         <tbody>
   1671           <tr>
   1672             <td><font size="-1">x_</font></td>
   1673             <td><font size="-1">Horizontal ordinate of left-most
   1674 coordinate of region to extract.</font></td>
   1675           </tr>
   1676           <tr>
   1677             <td><font size="-1">y_</font></td>
   1678             <td><font size="-1">Vertical ordinate of top-most
   1679 coordinate of region to extract.</font></td>
   1680           </tr>
   1681           <tr>
   1682             <td><font size="-1">columns_</font></td>
   1683             <td><font size="-1">Width in pixels of the region to
   1684 extract.</font></td>
   1685           </tr>
   1686           <tr>
   1687             <td><font size="-1">rows_</font></td>
   1688             <td><font size="-1">Height in pixels of the region to
   1689 extract.</font></td>
   1690           </tr>
   1691           <tr>
   1692             <td><font size="-1">map_</font></td>
   1693             <td><font size="-1">This character string can be any
   1694 combination or order of R = red, G = green, B = blue, A = alpha, C =
   1695 cyan, Y = yellow, M = magenta, and K = black. The ordering reflects
   1696 the order of the pixels in the supplied pixel array.</font></td>
   1697           </tr>
   1698           <tr>
   1699             <td><font size="-1">type_</font></td>
   1700             <td><font size="-1">Pixel storage type (CharPixel,
   1701 ShortPixel, IntegerPixel, FloatPixel, or DoublePixel)</font></td>
   1702           </tr>
   1703           <tr>
   1704             <td><font size="-1">pixels_</font></td>
   1705             <td><font size="-1">This array of values contain the pixel
   1706 components as defined by the map_ and type_ parameters. The length of
   1707 the arrays must equal the area specified by the width_ and height_
   1708 values and type_ parameters.</font></td>
   1709           </tr>
   1710         </tbody>
   1711       </table>
   1712       </p>
   1713       </td>
   1714     </tr>
   1715     <tr>
   1716       <td style="text-align: center;">
   1717       <center><a name="resize"></a> <font size="-1">resize</font></center>
   1718       </td>
   1719       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   1720 &amp;geometry_</font></td>
   1721       <td><font size="-1">Resize image to specified size.</font></td>
   1722     </tr>
   1723   </tbody>
   1724 </table></ul>
   1725 </p>
   1726 </div>
   1727 <h2> <a name="Image Attributes"></a> Image Attributes</h2>
   1728 <div class="doc-section">
   1729 Image attributes are set and obtained via methods in Image. Except for
   1730 methods which accept pointer arguments (e.g. c<tt>hromaBluePrimary)</tt>
   1731 all methods return attributes by value.
   1732 <p>Image attributes are easily used. For example, to set the resolution
   1733 of the TIFF file "file.tiff" to 150 dots-per-inch (DPI) in both the
   1734 horizontal and vertical directions, you can use the following example
   1735 code: </p>
   1736 <pre class="code">
   1737 string filename("file.tiff"); 
   1738 Image image; 
   1739 image.read(filename); 
   1740 image.resolutionUnits(PixelsPerInchResolution); 
   1741 image.density(Geometry(150,150));   // could also use image.density("150x150") 
   1742 image.write(filename)
   1743 </pre>
   1744 The supported image attributes and the method arguments required to
   1745 obtain them are shown in the following table: <br>
   1746  
   1747 <ul><table border="1">
   1748   <caption>Image Attributes</caption> <tbody>
   1749     <tr>
   1750       <td>
   1751       <center><b>Function</b></center>
   1752       </td>
   1753       <td>
   1754       <center><b>Type</b></center>
   1755       </td>
   1756       <td>
   1757       <center><b>Get Signature</b></center>
   1758       </td>
   1759       <td>
   1760       <center><b>Set Signature</b></center>
   1761       </td>
   1762       <td>
   1763       <center><b>Description</b></center>
   1764       </td>
   1765     </tr>
   1766     <tr>
   1767       <td>
   1768       <center><a name="adjoin"></a> <font size="-1">adjoin</font></center>
   1769       </td>
   1770       <td><font size="-1">bool</font></td>
   1771       <td><font size="-1">void</font></td>
   1772       <td><font size="-1">bool flag_</font></td>
   1773       <td><font size="-1">Join images into a single multi-image file.</font></td>
   1774     </tr>
   1775     <tr>
   1776       <td>
   1777       <center><a name="antiAlias"></a> <font size="-1">antiAlias</font></center>
   1778       </td>
   1779       <td><font size="-1">bool</font></td>
   1780       <td><font size="-1">void</font></td>
   1781       <td><font size="-1">bool flag_</font></td>
   1782       <td><font size="-1">Control antialiasing of rendered Postscript
   1783 and Postscript or TrueType fonts. Enabled by default.</font></td>
   1784     </tr>
   1785     <tr>
   1786       <td>
   1787       <center><a name="animationDelay"></a> <font size="-1">animation-</font>
   1788       <br>
   1789       <font size="-1">Delay</font></center>
   1790       </td>
   1791       <td><font size="-1">size_t (0 to 65535)</font></td>
   1792       <td><font size="-1">void</font></td>
   1793       <td><font size="-1">size_t delay_</font></td>
   1794       <td><font size="-1">Time in 1/100ths of a second (0 to 65535)
   1795 which must expire before displaying the next image in an animated
   1796 sequence. This option is useful for regulating the animation of a
   1797 sequence  of GIF images within Netscape.</font></td>
   1798     </tr>
   1799     <tr>
   1800       <td>
   1801       <center><a name="animationIterations"></a> <font size="-1">animation-</font>
   1802       <br>
   1803       <font size="-1">Iterations</font></center>
   1804       </td>
   1805       <td><font size="-1">size_t</font></td>
   1806       <td><font size="-1">void</font></td>
   1807       <td><font size="-1">size_t iterations_</font></td>
   1808       <td><font size="-1">Number of iterations to loop an animation
   1809 (e.g. Netscape loop extension) for.</font></td>
   1810     </tr>
   1811     <tr>
   1812       <td style="vertical-align: middle; text-align: center;"><small><a
   1813  name="attribute"></a>attribute<br>
   1814       </small></td>
   1815       <td style="vertical-align: middle;"><small>string<br>
   1816       </small></td>
   1817       <td style="vertical-align: top;" valign="top"><small>const
   1818 std::string name_<br>
   1819       </small></td>
   1820       <td style="vertical-align: top;" valign="top"><small>const
   1821 std::string name_, const std::string value_</small></td>
   1822       <td style="vertical-align: middle;"><small>An arbitrary named
   1823 image attribute. Any number of named attributes may be attached to the
   1824 image. For example, the image comment is a named image attribute with
   1825 the name "comment". EXIF tags are attached to the image as named
   1826 attributes. Use the syntax "EXIF:&lt;tag&gt;" to request an EXIF tag
   1827 similar to "EXIF:DateTime".</small><br>
   1828       </td>
   1829     </tr>
   1830     <tr>
   1831       <td>
   1832       <center><a name="backgroundColor"></a> <font size="-1">background-</font>
   1833       <br>
   1834       <font size="-1">Color</font></center>
   1835       </td>
   1836       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> </font></td>
   1837       <td><font size="-1">void</font></td>
   1838       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a>
   1839 &amp;color_</font></td>
   1840       <td><font size="-1">Image background color</font></td>
   1841     </tr>
   1842     <tr>
   1843       <td>
   1844       <center><a name="backgroundTexture"></a> <font size="-1">background-</font>
   1845       <br>
   1846       <font size="-1">Texture</font></center>
   1847       </td>
   1848       <td><font size="-1">string</font></td>
   1849       <td><font size="-1">void</font></td>
   1850       <td><font size="-1">const string &amp;texture_</font></td>
   1851       <td><font size="-1">Image file name to use as the background
   1852 texture. Does not modify image pixels.</font></td>
   1853     </tr>
   1854     <tr>
   1855       <td>
   1856       <center><a name="baseColumns"></a> <font size="-1">baseColumns</font></center>
   1857       </td>
   1858       <td><font size="-1">size_t</font></td>
   1859       <td><font size="-1">void</font></td>
   1860       <td bgcolor="#666666"><font size="-1"> </font></td>
   1861       <td><font size="-1">Base image width (before transformations)</font></td>
   1862     </tr>
   1863     <tr>
   1864       <td>
   1865       <center><a name="baseFilename"></a> <font size="-1">baseFilename</font></center>
   1866       </td>
   1867       <td><font size="-1">string</font></td>
   1868       <td><font size="-1">void</font></td>
   1869       <td bgcolor="#666666"><font size="-1"> </font></td>
   1870       <td><font size="-1">Base image filename (before transformations)</font></td>
   1871     </tr>
   1872     <tr>
   1873       <td>
   1874       <center><a name="baseRows"></a> <font size="-1">baseRows</font></center>
   1875       </td>
   1876       <td><font size="-1">size_t</font></td>
   1877       <td><font size="-1">void</font></td>
   1878       <td bgcolor="#666666"><font size="-1"> </font></td>
   1879       <td><font size="-1">Base image height (before transformations)</font></td>
   1880     </tr>
   1881     <tr>
   1882       <td>
   1883       <center><a name="borderColor"></a> <font size="-1">borderColor</font></center>
   1884       </td>
   1885       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> </font></td>
   1886       <td><font size="-1">void</font></td>
   1887       <td><font size="-1"> const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a>
   1888 &amp;color_</font></td>
   1889       <td><font size="-1">Image border color</font></td>
   1890     </tr>
   1891     <tr>
   1892       <td><a name="boundingBox"></a> <font size="-1">boundingBox</font></td>
   1893       <td><font size="-1">Geometry</font></td>
   1894       <td><font size="-1">void</font></td>
   1895       <td bgcolor="#666666"><font size="-1"> </font></td>
   1896       <td><font size="-1">Return smallest bounding box enclosing
   1897 non-border pixels. The current fuzz value is used when discriminating
   1898 between pixels. This is the crop bounding box used by
   1899 crop(Geometry(0,0)).</font></td>
   1900     </tr>
   1901     <tr>
   1902       <td>
   1903       <center><a name="boxColor"></a> <font size="-1">boxColor</font></center>
   1904       </td>
   1905       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> </font></td>
   1906       <td><font size="-1">void</font></td>
   1907       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a>
   1908 &amp;boxColor_</font></td>
   1909       <td><font size="-1">Base color that annotation text is rendered
   1910 on.</font></td>
   1911     </tr>
   1912     <tr>
   1913       <td><a name="cacheThreshold"></a> <font size="-1">cacheThreshold</font></td>
   1914       <td><font size="-1">size_t</font></td>
   1915       <td bgcolor="#666666"><font size="-1"> </font></td>
   1916       <td><font size="-1">const size_t</font></td>
   1917       <td><font size="-1">Pixel cache threshold in megabytes. Once this
   1918 threshold is exceeded, all subsequent pixels cache operations are
   1919 to/from disk. This is a static method and the attribute it sets is
   1920 shared by all Image objects.</font></td>
   1921     </tr>
   1922     <tr>
   1923       <td style="vertical-align: middle;" valign="middle"><small><a
   1924  name="channelDepth"></a>channelDepth<br>
   1925       </small></td>
   1926       <td style="vertical-align: middle;" valign="middle"><small>size_t
   1927 <br>
   1928       </small></td>
   1929       <td style="vertical-align: middle;" valign="middle"><small>const
   1930 ChannelType channel_<br>
   1931       </small></td>
   1932       <td style="vertical-align: middle;"><small>const ChannelType
   1933 channel_, const size_t depth_<br>
   1934       </small></td>
   1935       <td style="vertical-align: middle;"><small>Channel modulus depth.
   1936 The channel modulus depth represents the minimum number of bits
   1937 required
   1938 to support the channel without loss. Setting the channel's modulus
   1939 depth
   1940 modifies the channel (i.e. discards resolution) if the requested
   1941 modulus
   1942 depth is less than the current modulus depth, otherwise the channel is
   1943 not altered. There is no attribute associated with the modulus depth so
   1944 the current modulus depth is obtained by inspecting the pixels. As a
   1945 result, the depth returned may be less than the most recently set
   1946 channel depth. Subsequent image processing may result in increasing the
   1947 channel depth.<br>
   1948       </small></td>
   1949     </tr>
   1950     <tr>
   1951       <td>
   1952       <center><a name="chromaBluePrimary"></a> <font size="-1">chroma-</font>
   1953       <br>
   1954       <font size="-1">BluePrimary</font></center>
   1955       </td>
   1956       <td><font size="-1">double x &amp; y</font></td>
   1957       <td><font size="-1">double *x_, double *y_</font></td>
   1958       <td><font size="-1">double x_, double y_</font></td>
   1959       <td><font size="-1">Chromaticity blue primary point (e.g. x=0.15,
   1960 y=0.06)</font></td>
   1961     </tr>
   1962     <tr>
   1963       <td>
   1964       <center><a name="chromaGreenPrimary"></a> <font size="-1">chroma-</font>
   1965       <br>
   1966       <font size="-1">GreenPrimary</font></center>
   1967       </td>
   1968       <td><font size="-1">double x &amp; y</font></td>
   1969       <td><font size="-1">double *x_, double *y_</font></td>
   1970       <td><font size="-1">double x_, double y_</font></td>
   1971       <td><font size="-1">Chromaticity green primary point (e.g. x=0.3,
   1972 y=0.6)</font></td>
   1973     </tr>
   1974     <tr>
   1975       <td>
   1976       <center><a name="chromaRedPrimary"></a> <font size="-1">chroma-</font>
   1977       <br>
   1978       <font size="-1">RedPrimary</font></center>
   1979       </td>
   1980       <td><font size="-1">double x &amp; y</font></td>
   1981       <td><font size="-1">double *x_, double *y_</font></td>
   1982       <td><font size="-1">double x_, double y_</font></td>
   1983       <td><font size="-1">Chromaticity red primary point (e.g. x=0.64,
   1984 y=0.33)</font></td>
   1985     </tr>
   1986     <tr>
   1987       <td>
   1988       <center><a name="chromaWhitePoint"></a> <font size="-1">chroma-</font>
   1989       <br>
   1990       <font size="-1">WhitePoint</font></center>
   1991       </td>
   1992       <td><font size="-1">double x &amp; y</font></td>
   1993       <td><font size="-1">double*x_, double *y_</font></td>
   1994       <td><font size="-1">double x_, double y_</font></td>
   1995       <td><font size="-1">Chromaticity white point (e.g. x=0.3127,
   1996 y=0.329)</font></td>
   1997     </tr>
   1998     <tr>
   1999       <td>
   2000       <center><a name="classType"></a> <font size="-1">classType</font></center>
   2001       </td>
   2002       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#ClassType">ClassType</a>
   2003       </font></td>
   2004       <td><font size="-1">void</font></td>
   2005       <td><font size="-1"> <a href="http://www.imagemagick.org/Magick++/Enumerations.html#ClassType">ClassType</a>
   2006 class_</font></td>
   2007       <td><font size="-1">Image storage class.  Note that
   2008 conversion from a DirectClass image to a PseudoClass image may result
   2009 in a loss of color due to the limited size of the palette (256 or
   2010 65535 colors).</font></td>
   2011     </tr>
   2012     <tr>
   2013       <td>
   2014       <center><a name="clipMask"></a> <font size="-1">clipMask</font></center>
   2015       </td>
   2016       <td><font size="-1">Image</font></td>
   2017       <td><font size="-1">void</font></td>
   2018       <td><font size="-1">const Image &amp;clipMask_</font></td>
   2019       <td><font size="-1">Associate a clip mask image with the current
   2020 image. The clip mask image must have the same dimensions as the current
   2021 image or an exception is thrown. Clipping occurs wherever pixels are
   2022 transparent in the clip mask image. Clipping Pass an invalid image to
   2023 unset an existing clip mask.</font></td>
   2024     </tr>
   2025     <tr>
   2026       <td>
   2027       <center><a name="colorFuzz"></a> <font size="-1">colorFuzz</font></center>
   2028       </td>
   2029       <td><font size="-1">double</font></td>
   2030       <td><font size="-1">void</font></td>
   2031       <td><font size="-1">double fuzz_</font></td>
   2032       <td><font size="-1">Colors within this distance are considered
   2033 equal. A number of algorithms search for a target  color. By
   2034 default the color must be exact. Use this option to match colors that
   2035 are close to the target color in RGB space.</font></td>
   2036     </tr>
   2037     <tr>
   2038       <td>
   2039       <center><a name="colorMap"></a> <font size="-1">colorMap</font></center>
   2040       </td>
   2041       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> </font></td>
   2042       <td><font size="-1">size_t index_</font></td>
   2043       <td><font size="-1">size_t index_, const <a
   2044  href="http://www.imagemagick.org/Magick++/Color.html"> Color</a> &amp;color_</font></td>
   2045       <td><font size="-1">Color at colormap index.</font></td>
   2046     </tr>
   2047     <tr>
   2048       <td valign="middle">
   2049       <div align="center"><a name="colorMapSize"></a> <font size="-1">colorMapSize<br>
   2050       </font></div>
   2051       </td>
   2052       <td valign="middle"><font size="-1">size_t<br>
   2053       </font></td>
   2054       <td valign="middle"><font size="-1">void<br>
   2055       </font></td>
   2056       <td valign="middle"><font size="-1">size_t entries_<br>
   2057       </font></td>
   2058       <td valign="middle"><font size="-1">Number of entries in the
   2059 colormap. Setting the colormap size may extend or truncate the
   2060 colormap.
   2061 The maximum number of supported entries is specified by the <i>MaxColormapSize</i>constant,
   2062 and is dependent on the value of QuantumDepth when ImageMagick is
   2063 compiled. An exception is thrown if more entries are requested than may
   2064 be supported. Care should be taken when truncating the colormap to
   2065 ensure that the image colormap indexes reference valid colormap entries.</font><br>
   2066       </td>
   2067     </tr>
   2068     <tr>
   2069       <td>
   2070       <center><a name="colorSpace"></a> <font size="-1">colorSpace</font></center>
   2071       </td>
   2072       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#ColorspaceType">ColorspaceType</a>
   2073 colorSpace_</font></td>
   2074       <td><font size="-1">void</font></td>
   2075       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#ColorspaceType">ColorspaceType</a>
   2076 colorSpace_</font></td>
   2077       <td><font size="-1">The colorspace (e.g. CMYK) used to represent
   2078 the image pixel colors. Image pixels are always stored as RGB(A) except
   2079 for the case of CMY(K).</font></td>
   2080     </tr>
   2081     <tr>
   2082       <td>
   2083       <center><a name="columns"></a> <font size="-1">columns</font></center>
   2084       </td>
   2085       <td><font size="-1">size_t</font></td>
   2086       <td><font size="-1">void</font></td>
   2087       <td bgcolor="#666666"><font size="-1"> </font></td>
   2088       <td><font size="-1">Image width</font></td>
   2089     </tr>
   2090     <tr>
   2091       <td>
   2092       <center><a name="comment"></a> <font size="-1">comment</font></center>
   2093       </td>
   2094       <td><font size="-1">string</font></td>
   2095       <td><font size="-1">void</font></td>
   2096       <td bgcolor="#666666"><font size="-1"> </font></td>
   2097       <td><font size="-1">Image comment</font></td>
   2098     </tr>
   2099     <tr>
   2100       <td>
   2101       <center><a name="compose"></a> <font size="-1">compose</font></center>
   2102       </td>
   2103       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#CompositeOperator">CompositeOperator</a>
   2104       </font></td>
   2105       <td><small><font size="-1"><small>void</small></font></small></td>
   2106       <td><small><font size="-1"><small><a
   2107  href="http://www.imagemagick.org/Magick++/Enumerations.html#CompositeOperator">CompositeOperator</a>
   2108 compose_</small></font></small></td>
   2109       <td><font size="-1">Composition operator to be used when
   2110 composition is implicitly used (such as for image flattening).</font></td>
   2111     </tr>
   2112     <tr>
   2113       <td>
   2114       <center><a name="compressType"></a> <font size="-1">compress-</font>
   2115       <br>
   2116       <font size="-1">Type</font></center>
   2117       </td>
   2118       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#CompressionType">CompressionType</a>
   2119       </font></td>
   2120       <td><small><font size="-1"><small>void</small></font></small></td>
   2121       <td><small><font size="-1"><small><a
   2122  href="http://www.imagemagick.org/Magick++/Enumerations.html#CompressionType">CompressionType</a>
   2123 compressType_</small></font></small></td>
   2124       <td><font size="-1">Image compresion type. The default is the
   2125 compression type of the specified image file.</font></td>
   2126     </tr>
   2127     <tr>
   2128       <td>
   2129       <center><a name="debug"></a> <font size="-1">debug</font></center>
   2130       </td>
   2131       <td><font size="-1">bool</font></td>
   2132       <td><small><font size="-1"><small>void</small></font></small></td>
   2133       <td><small><font size="-1"><small>bool flag_</small></font></small></td>
   2134       <td><font size="-1">Enable printing of internal debug messages
   2135 from ImageMagick as it executes.</font></td>
   2136     </tr>
   2137     <tr>
   2138       <td style="text-align: center; vertical-align: middle;"><small><a
   2139  name="defineValue"></a>defineValue<br>
   2140       </small></td>
   2141       <td style="vertical-align: middle; text-align: left;"><small>string<br>
   2142       </small></td>
   2143       <td style="vertical-align: middle;"><small>const std::string
   2144 &amp;magick_, const std::string &amp;key_<br>
   2145       </small></td>
   2146       <td style="vertical-align: middle;"><small>const std::string
   2147 &amp;magick_, const std::string &amp;key_,  const std::string
   2148 &amp;value_<br>
   2149       </small></td>
   2150       <td style="vertical-align: top;"><small>Set or obtain a
   2151 definition string to applied when encoding or decoding the specified
   2152 format. The meanings of the definitions are format specific. The format
   2153 is designated by the <span style="font-style: italic;">magick_</span>
   2154 argument, the format-specific key is designated by <span
   2155  style="font-style: italic;">key_</span>, and the associated value is
   2156 specified by <span style="font-style: italic;">value_</span>. See the
   2157 defineSet() method if the key must be removed entirely.</small><br>
   2158       </td>
   2159     </tr>
   2160     <tr>
   2161       <td style="text-align: center; vertical-align: middle;"><small><a
   2162  name="defineSet"></a>defineSet<br>
   2163       </small></td>
   2164       <td style="vertical-align: middle; text-align: left;"><small>bool<br>
   2165       </small></td>
   2166       <td style="vertical-align: middle;"><small>const std::string
   2167 &amp;magick_, const std::string &amp;key_<br>
   2168       </small></td>
   2169       <td style="vertical-align: middle;"><small>const std::string
   2170 &amp;magick_, const std::string &amp;key_, bool flag_<br>
   2171       </small></td>
   2172       <td style="vertical-align: middle;"><small>Set or obtain a
   2173 definition flag to applied when encoding or decoding the specified
   2174 format.</small><small>. Similar to the defineValue() method except that
   2175 passing the <span style="font-style: italic;">flag_</span> value
   2176 'true'
   2177 creates a value-less define with that format and key. Passing the <span
   2178  style="font-style: italic;">f</span><span style="font-style: italic;">lag_</span>
   2179 value 'false' removes any existing matching definition. The method
   2180 returns 'true' if a matching key exists, and 'false' if no matching key
   2181 exists.<br>
   2182       </small></td>
   2183     </tr>
   2184     <tr>
   2185       <td>
   2186       <center><a name="density"></a> <font size="-1">density</font></center>
   2187       </td>
   2188       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>  
   2189 (default 72x72)</font></td>
   2190       <td><font size="-1">void</font></td>
   2191       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   2192 &amp;density_</font></td>
   2193       <td><font size="-1">Vertical and horizontal resolution in pixels
   2194 of the image. This option specifies an image density when decoding a
   2195 Postscript or Portable Document page. Often used with <i>psPageSize</i>.</font></td>
   2196     </tr>
   2197     <tr>
   2198       <td>
   2199       <center><a name="depth"></a> <font size="-1">depth</font></center>
   2200       </td>
   2201       <td><font size="-1"> size_t (8-32)</font></td>
   2202       <td><font size="-1">void</font></td>
   2203       <td><font size="-1">size_t depth_</font></td>
   2204       <td><font size="-1">Image depth. Used to specify the bit depth
   2205 when reading or writing  raw images or when the output format
   2206 supports multiple depths. Defaults to the quantum depth that
   2207 ImageMagick is compiled with.</font></td>
   2208     </tr>
   2209     <tr>
   2210       <td>
   2211       <center><a name="endian"></a> <font size="-1">endian</font></center>
   2212       </td>
   2213       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#EndianType">EndianType</a>
   2214       </font></td>
   2215       <td><font size="-1">void</font></td>
   2216       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#EndianType">EndianType</a>
   2217 endian_</font></td>
   2218       <td><font size="-1">Specify (or obtain) endian option for formats
   2219 which support it.</font></td>
   2220     </tr>
   2221     <tr>
   2222       <td>
   2223       <center><a name="directory"></a> <font size="-1">directory</font></center>
   2224       </td>
   2225       <td><font size="-1">string</font></td>
   2226       <td><font size="-1">void</font></td>
   2227       <td><font size="-1"> </font></td>
   2228       <td><font size="-1">Tile names from within an image montage</font></td>
   2229     </tr>
   2230     <tr>
   2231       <td>
   2232       <center><a name="file"></a> <font size="-1">file</font></center>
   2233       </td>
   2234       <td><font size="-1">FILE *</font></td>
   2235       <td><font size="-1">FILE *</font></td>
   2236       <td><font size="-1">FILE *file_</font></td>
   2237       <td><font size="-1">Image file descriptor.</font></td>
   2238     </tr>
   2239     <tr>
   2240       <td>
   2241       <center><a name="fileName"></a> <font size="-1">fileName</font></center>
   2242       </td>
   2243       <td><font size="-1">string</font></td>
   2244       <td><font size="-1">void</font></td>
   2245       <td><font size="-1">const string &amp;fileName_</font></td>
   2246       <td><font size="-1">Image file name.</font></td>
   2247     </tr>
   2248     <tr>
   2249       <td>
   2250       <center><a name="fileSize"></a> <font size="-1">fileSize</font></center>
   2251       </td>
   2252       <td><font size="-1">off_t</font></td>
   2253       <td><font size="-1">void</font></td>
   2254       <td bgcolor="#666666"><font size="-1"> </font></td>
   2255       <td><font size="-1">Number of bytes of the image on disk</font></td>
   2256     </tr>
   2257     <tr>
   2258       <td>
   2259       <center><a name="fillColor"></a> <font size="-1">fillColor</font></center>
   2260       </td>
   2261       <td><font size="-1">Color</font></td>
   2262       <td><font size="-1">void</font></td>
   2263       <td><font size="-1">const Color &amp;fillColor_</font></td>
   2264       <td><font size="-1">Color to use when filling drawn objects</font></td>
   2265     </tr>
   2266     <tr>
   2267       <td>
   2268       <center><a name="fillPattern"></a> <font size="-1">fillPattern</font></center>
   2269       </td>
   2270       <td><font size="-1">Image</font></td>
   2271       <td><font size="-1">void</font></td>
   2272       <td><font size="-1">const Image &amp;fillPattern_</font></td>
   2273       <td><font size="-1">Pattern image to use when filling drawn
   2274 objects.</font></td>
   2275     </tr>
   2276     <tr>
   2277       <td>
   2278       <center><a name="fillRule"></a> <font size="-1">fillRule</font></center>
   2279       </td>
   2280       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#FillRule">FillRule</a>
   2281       </font></td>
   2282       <td><font size="-1">void</font></td>
   2283       <td><font size="-1">const Magick::FillRule &amp;fillRule_</font></td>
   2284       <td><font size="-1">Rule to use when filling drawn objects.</font></td>
   2285     </tr>
   2286     <tr>
   2287       <td>
   2288       <center><a name="filterType"></a> <font size="-1">filterType</font></center>
   2289       </td>
   2290       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#FilterTypes">FilterTypes</a>
   2291       </font></td>
   2292       <td><font size="-1">void</font></td>
   2293       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#FilterTypes">FilterTypes</a>
   2294 filterType_</font></td>
   2295       <td><font size="-1">Filter to use when resizing image. The
   2296 reduction filter employed has a significant effect on the time required
   2297 to resize an image and the resulting quality. The default filter is <i>Lanczos</i>
   2298 which has been shown to produce high quality results when reducing most
   2299 images.</font></td>
   2300     </tr>
   2301     <tr>
   2302       <td>
   2303       <center><a name="font"></a> <font size="-1">font</font></center>
   2304       </td>
   2305       <td><font size="-1">string</font></td>
   2306       <td><font size="-1">void</font></td>
   2307       <td><font size="-1">const string &amp;font_</font></td>
   2308       <td><font size="-1">Text rendering font. If the font is a fully
   2309 qualified X server font name, the font is obtained from an X 
   2310 server. To use a TrueType font, precede the TrueType filename with an
   2311 @. Otherwise, specify  a  Postscript font name (e.g.
   2312 "helvetica").</font></td>
   2313     </tr>
   2314     <tr>
   2315       <td>
   2316       <center><a name="fontPointsize"></a> <font size="-1">fontPointsize</font></center>
   2317       </td>
   2318       <td><font size="-1">size_t</font></td>
   2319       <td><font size="-1">void</font></td>
   2320       <td><font size="-1">size_t pointSize_</font></td>
   2321       <td><font size="-1">Text rendering font point size</font></td>
   2322     </tr>
   2323     <tr>
   2324       <td>
   2325       <center><a name="fontTypeMetrics"></a> <font size="-1">fontTypeMetrics</font></center>
   2326       </td>
   2327       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/TypeMetric.html">TypeMetric</a> </font></td>
   2328       <td><font size="-1">const std::string &amp;text_, <a
   2329  href="http://www.imagemagick.org/Magick++/TypeMetric.html"> TypeMetric</a> *metrics</font></td>
   2330       <td bgcolor="#666666"><font size="-1"> </font></td>
   2331       <td><font size="-1">Update metrics with font type metrics using
   2332 specified <i>text</i>, and current <a href="Image++.html#font">font</a> and <a
   2333  href="Image++.html#fontPointsize">fontPointSize</a> settings.</font></td>
   2334     </tr>
   2335     <tr>
   2336       <td>
   2337       <center><a name="format"></a> <font size="-1">format</font></center>
   2338       </td>
   2339       <td><font size="-1">string</font></td>
   2340       <td><font size="-1">void</font></td>
   2341       <td bgcolor="#666666"><font size="-1"> </font></td>
   2342       <td><font size="-1">Long form image format description.</font></td>
   2343     </tr>
   2344     <tr>
   2345       <td>
   2346       <center><a name="gamma"></a> <font size="-1">gamma</font></center>
   2347       </td>
   2348       <td><font size="-1">double (typical range 0.8 to 2.3)</font></td>
   2349       <td><font size="-1">void</font></td>
   2350       <td bgcolor="#666666"><font size="-1"> </font></td>
   2351       <td><font size="-1">Gamma level of the image. The same color
   2352 image displayed on two different  workstations  may 
   2353 look  different due to differences in the display monitor. 
   2354 Use gamma correction  to  adjust  for this 
   2355 color  difference.</font></td>
   2356     </tr>
   2357     <tr>
   2358       <td>
   2359       <center><a name="geometry"></a> <font size="-1">geometry</font></center>
   2360       </td>
   2361       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> </font></td>
   2362       <td><font size="-1">void</font></td>
   2363       <td bgcolor="#666666"><font size="-1"> </font></td>
   2364       <td><font size="-1">Preferred size of the image when encoding.</font></td>
   2365     </tr>
   2366     <tr>
   2367       <td>
   2368       <center><a name="gifDisposeMethod"></a> <font size="-1">gifDispose-</font>
   2369       <br>
   2370       <font size="-1">Method</font></center>
   2371       </td>
   2372       <td><font size="-1">size_t</font> <br>
   2373       <font size="-1">{ 0 = Disposal not specified,</font> <br>
   2374       <font size="-1">1 = Do not dispose of graphic,</font> <br>
   2375       <font size="-1">3 = Overwrite graphic with background color,</font>
   2376       <br>
   2377       <font size="-1">4 = Overwrite graphic with previous graphic. }</font></td>
   2378       <td><font size="-1">void</font></td>
   2379       <td><font size="-1">size_t disposeMethod_</font></td>
   2380       <td><font size="-1">GIF disposal method. This option is used to
   2381 control how successive frames are rendered (how the preceding frame is
   2382 disposed of) when creating a GIF animation.</font></td>
   2383     </tr>
   2384     <tr>
   2385       <td>
   2386       <center><a name="iccColorProfile"></a> <font size="-1">iccColorProfile</font></center>
   2387       </td>
   2388       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a> </font></td>
   2389       <td><font size="-1">void</font></td>
   2390       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a>
   2391 &amp;colorProfile_</font></td>
   2392       <td><font size="-1">ICC color profile. Supplied via a <a
   2393  href="http://www.imagemagick.org/Magick++/Blob.html"> Blob</a> since Magick++/ and ImageMagick do not
   2394 currently support formating this data structure directly. 
   2395 Specifications are available from the <a href="http://www.color.org/">
   2396 International Color Consortium</a> for the format of ICC color profiles.</font></td>
   2397     </tr>
   2398     <tr>
   2399       <td>
   2400       <center><a name="interlaceType"></a> <font size="-1">interlace-</font>
   2401       <br>
   2402       <font size="-1">Type</font></center>
   2403       </td>
   2404       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#InterlaceType">InterlaceType</a>
   2405       </font></td>
   2406       <td><font size="-1">void</font></td>
   2407       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#InterlaceType">InterlaceType</a>
   2408 interlace_</font></td>
   2409       <td><font size="-1">The type of interlacing scheme (default <i>NoInterlace</i>
   2410 ). This option is used to specify the type of  interlacing
   2411 scheme  for  raw  image formats such as RGB or YUV. <i>NoInterlace</i>
   2412 means do not  interlace, <i>LineInterlace</i> uses scanline
   2413 interlacing, and <i>PlaneInterlace</i> uses plane interlacing. <i>
   2414 PartitionInterlace</i> is like <i>PlaneInterlace</i> except the 
   2415 different planes  are saved  to individual files (e.g. 
   2416 image.R, image.G, and image.B). Use <i>LineInterlace</i> or <i>
   2417 PlaneInterlace</i> to create an interlaced GIF or progressive JPEG
   2418 image.</font></td>
   2419     </tr>
   2420     <tr>
   2421       <td>
   2422       <center><a name="iptcProfile"></a> <font size="-1">iptcProfile</font></center>
   2423       </td>
   2424       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a> </font></td>
   2425       <td><font size="-1">void</font></td>
   2426       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Blob.html">Blob</a> &amp;
   2427 iptcProfile_</font></td>
   2428       <td><font size="-1">IPTC profile. Supplied via a <a
   2429  href="http://www.imagemagick.org/Magick++/Blob.html"> Blob</a> since Magick++ and ImageMagick do not
   2430 currently  support formating this data structure directly.
   2431 Specifications are available from the <a href="http://www.iptc.org/">
   2432 International Press Telecommunications Council</a> for IPTC profiles.</font></td>
   2433     </tr>
   2434     <tr>
   2435       <td>
   2436       <center><a name="label"></a> <font size="-1">label</font></center>
   2437       </td>
   2438       <td><font size="-1">string</font></td>
   2439       <td><font size="-1">void</font></td>
   2440       <td><font size="-1">const string &amp;label_</font></td>
   2441       <td><font size="-1">Image label</font></td>
   2442     </tr>
   2443     <tr>
   2444       <td>
   2445       <center><a name="magick"></a> <font size="-1">magick</font></center>
   2446       </td>
   2447       <td><font size="-1">string</font></td>
   2448       <td><font size="-1">void</font></td>
   2449       <td><font size="-1"> const string &amp;magick_</font></td>
   2450       <td><font size="-1">Get image format (e.g. "GIF")</font></td>
   2451     </tr>
   2452     <tr>
   2453       <td>
   2454       <center><a name="matte"></a> <font size="-1">matte</font></center>
   2455       </td>
   2456       <td><font size="-1">bool</font></td>
   2457       <td><font size="-1">void</font></td>
   2458       <td><font size="-1">bool matteFlag_</font></td>
   2459       <td><font size="-1">True if the image has transparency. If set
   2460 True, store matte channel if  the image has one otherwise create
   2461 an opaque one.</font></td>
   2462     </tr>
   2463     <tr>
   2464       <td>
   2465       <center><a name="matteColor"></a> <font size="-1">matteColor</font></center>
   2466       </td>
   2467       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> </font></td>
   2468       <td><font size="-1">void</font></td>
   2469       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Color.html">Color</a>
   2470 &amp;matteColor_</font></td>
   2471       <td><font size="-1">Image matte (frame) color</font></td>
   2472     </tr>
   2473     <tr>
   2474       <td>
   2475       <center><a name="meanErrorPerPixel"></a> <font size="-1">meanError-</font>
   2476       <br>
   2477       <font size="-1">PerPixel</font></center>
   2478       </td>
   2479       <td><font size="-1">double</font></td>
   2480       <td><font size="-1">void</font></td>
   2481       <td bgcolor="#666666"><font size="-1"> </font></td>
   2482       <td><font size="-1">The mean error per pixel computed when an
   2483 image is color reduced. This parameter is only valid if verbose is set
   2484 to true and the image has just been quantized.</font></td>
   2485     </tr>
   2486     <tr>
   2487       <td style="text-align: center; vertical-align: middle;"><font
   2488  size="-1"><a name="modulusDepth"></a>modulusDepth<br>
   2489       </font></td>
   2490       <td style="text-align: left; vertical-align: middle;"><small>size_t
   2491 <br>
   2492       </small></td>
   2493       <td style="text-align: left; vertical-align: middle;"><small><font
   2494  size="-1"><small>void<br>
   2495       </small></font></small></td>
   2496       <td style="text-align: left; vertical-align: middle;"><small>size_t
   2497 depth_<br>
   2498       </small></td>
   2499       <td style="text-align: left; vertical-align: middle;"><small>Image
   2500 modulus depth (minimum number of bits required to support
   2501 red/green/blue components without loss of accuracy). The pixel modulus
   2502 depth may be decreased by supplying a value which is less than the
   2503 current value, updating the pixels (reducing accuracy) to the new
   2504 depth.
   2505 The pixel modulus depth can not be increased over the current value
   2506 using this method.<br>
   2507       </small></td>
   2508     </tr>
   2509     <tr>
   2510       <td>
   2511       <center><a name="monochrome"></a> <font size="-1">monochrome</font></center>
   2512       </td>
   2513       <td><font size="-1">bool</font></td>
   2514       <td><font size="-1">void</font></td>
   2515       <td><font size="-1">bool flag_</font></td>
   2516       <td><font size="-1">Transform the image to black and white</font></td>
   2517     </tr>
   2518     <tr>
   2519       <td>
   2520       <center><a name="montageGeometry"></a> <font size="-1">montage-</font>
   2521       <br>
   2522       <font size="-1">Geometry</font></center>
   2523       </td>
   2524       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> </font></td>
   2525       <td><font size="-1">void</font></td>
   2526       <td bgcolor="#666666"><font size="-1"> </font></td>
   2527       <td><font size="-1">Tile size and offset within an image montage.
   2528 Only valid for montage images.</font></td>
   2529     </tr>
   2530     <tr>
   2531       <td>
   2532       <center><a name="normalizedMaxError"></a> <font size="-1">normalized-</font>
   2533       <br>
   2534       <font size="-1">MaxError</font></center>
   2535       </td>
   2536       <td><font size="-1">double</font></td>
   2537       <td><font size="-1">void</font></td>
   2538       <td bgcolor="#666666"><font size="-1"> </font></td>
   2539       <td><font size="-1">The normalized max error per pixel computed
   2540 when an image is color reduced. This parameter is only valid if verbose
   2541 is set to true and the image has just been quantized.</font></td>
   2542     </tr>
   2543     <tr>
   2544       <td>
   2545       <center><a name="normalizedMeanError"></a> <font size="-1">normalized-</font>
   2546       <br>
   2547       <font size="-1">MeanError</font></center>
   2548       </td>
   2549       <td><font size="-1">double</font></td>
   2550       <td><font size="-1">void</font></td>
   2551       <td bgcolor="#666666"><font size="-1"> </font></td>
   2552       <td><font size="-1">The normalized mean error per pixel computed
   2553 when an image is color reduced. This parameter is only valid if verbose
   2554 is set to true and the image has just been quantized.</font></td>
   2555     </tr>
   2556     <tr>
   2557       <td style="text-align: center; vertical-align: middle;"><small><a
   2558  name="orientation"></a>orientation<br>
   2559       </small></td>
   2560       <td style="vertical-align: middle;"><small><a
   2561  href="http://www.imagemagick.org/Magick++/Enumerations.html#OrientationType">OrientationType</a></small></td>
   2562       <td style="vertical-align: top;"><small>void</small><br>
   2563       </td>
   2564       <td style="vertical-align: middle;"><small><a
   2565  href="http://www.imagemagick.org/Magick++/Enumerations.html#OrientationType">OrientationType</a>
   2566 orientation_</small></td>
   2567       <td style="vertical-align: top;"><small>Image orientation.
   2568  Supported by some file formats such as DPX and TIFF. Useful for
   2569 turning the right way up.<br>
   2570       </small></td>
   2571     </tr>
   2572     <tr>
   2573       <td>
   2574       <center><a name="packets"></a> <font size="-1">packets</font></center>
   2575       </td>
   2576       <td><font size="-1">size_t</font></td>
   2577       <td><font size="-1">void</font></td>
   2578       <td bgcolor="#666666"><font size="-1"> </font></td>
   2579       <td><font size="-1">The number of runlength-encoded packets in</font>
   2580       <br>
   2581       <font size="-1">the image</font></td>
   2582     </tr>
   2583     <tr>
   2584       <td>
   2585       <center><a name="packetSize"></a> <font size="-1">packetSize</font></center>
   2586       </td>
   2587       <td><font size="-1">size_t</font></td>
   2588       <td><font size="-1">void</font></td>
   2589       <td bgcolor="#666666"><font size="-1"> </font></td>
   2590       <td><font size="-1">The number of bytes in each pixel packet</font></td>
   2591     </tr>
   2592     <tr>
   2593       <td>
   2594       <center><a name="page"></a> <font size="-1">page</font></center>
   2595       </td>
   2596       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Geometry.html#PostscriptPageSize">Geometry</a>
   2597       </font></td>
   2598       <td><font size="-1">void</font></td>
   2599       <td><font size="-1">const <a
   2600  href="http://www.imagemagick.org/Magick++/Geometry.html#PostscriptPageSize"> Geometry</a> &amp;pageSize_</font></td>
   2601       <td><font size="-1">Preferred size and location of an image
   2602 canvas.</font>
   2603       <p><font size="-1">Use this option to specify the dimensions
   2604 and position of the Postscript page in dots per inch or a TEXT page in
   2605 pixels. This option is typically used in concert with <i><a
   2606  href="Image++.html#density"> density</a> </i>.</font> </p>
   2607       <p><font size="-1">Page may also be used to position a GIF
   2608 image (such as for a scene in an animation)</font></p>
   2609       </td>
   2610     </tr>
   2611     <tr>
   2612       <td>
   2613       <center><a name="pixelColor"></a> <font size="-1">pixelColor</font></center>
   2614       </td>
   2615       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Color.html">Color</a> </font></td>
   2616       <td><font size="-1">ssize_t x_, ssize_t y_</font></td>
   2617       <td><font size="-1">ssize_t x_, ssize_t y_, const <a
   2618  href="http://www.imagemagick.org/Magick++/Color.html"> Color</a> &amp;color_</font></td>
   2619       <td><font size="-1">Get/set pixel color at location x &amp; y.</font></td>
   2620     </tr>
   2621     <tr>
   2622       <td valign="top">
   2623       <div align="center"><a name="profile"></a> <small>profile</small><br>
   2624       </div>
   2625       </td>
   2626       <td valign="top"><a href="http://www.imagemagick.org/Magick++/Blob.html"><small> Blob</small><small><br>
   2627       </small></a> </td>
   2628       <td valign="top"><small>const std::string name_</small><small><br>
   2629       </small></td>
   2630       <td valign="top"><small>const std::string name_, const Blob
   2631 &amp;colorProfile_</small><small><br>
   2632       </small></td>
   2633       <td valign="top"><small>Get/set/remove </small><small> a named
   2634 profile</small><small>. Valid names include </small><small>"*",
   2635 "8BIM", "ICM", "IPTC", or a user/format-defined profile name. </small><br>
   2636       </td>
   2637     </tr>
   2638     <tr>
   2639       <td>
   2640       <center><a name="quality"></a> <font size="-1">quality</font></center>
   2641       </td>
   2642       <td><font size="-1">size_t (0 to 100)</font></td>
   2643       <td><font size="-1">void</font></td>
   2644       <td><font size="-1">size_t quality_</font></td>
   2645       <td><font size="-1">JPEG/MIFF/PNG compression level (default 75).</font></td>
   2646     </tr>
   2647     <tr>
   2648       <td>
   2649       <center><a name="quantizeColors"></a> <font size="-1">quantize-</font>
   2650       <br>
   2651       <font size="-1">Colors</font></center>
   2652       </td>
   2653       <td><font size="-1">size_t</font></td>
   2654       <td><font size="-1">void</font></td>
   2655       <td><font size="-1">size_t colors_</font></td>
   2656       <td><font size="-1">Preferred number of colors in the image. The
   2657 actual number of colors in the image may be less than your request, but
   2658 never more. Images with less unique colors than specified with this
   2659 option will have any duplicate or unused colors removed.</font></td>
   2660     </tr>
   2661     <tr>
   2662       <td>
   2663       <center><a name="quantizeColorSpace"></a> <font size="-1">quantize-</font>
   2664       <br>
   2665       <font size="-1">ColorSpace</font></center>
   2666       </td>
   2667       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#ColorspaceType">ColorspaceType</a>
   2668       </font></td>
   2669       <td><font size="-1">void</font></td>
   2670       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#ColorspaceType">ColorspaceType</a>
   2671 colorSpace_</font></td>
   2672       <td><font size="-1">Colorspace to quantize colors in (default
   2673 RGB). Empirical evidence suggests that distances in color spaces such
   2674 as YUV or YIQ correspond to perceptual color differences more closely
   2675 than do distances in RGB space. These color spaces may give better
   2676 results when color reducing an image.</font></td>
   2677     </tr>
   2678     <tr>
   2679       <td>
   2680       <center><a name="quantizeDither"></a> <font size="-1">quantize-</font>
   2681       <br>
   2682       <font size="-1">Dither</font></center>
   2683       </td>
   2684       <td><font size="-1">bool</font></td>
   2685       <td><font size="-1">void</font></td>
   2686       <td><font size="-1">bool flag_</font></td>
   2687       <td><font size="-1">Apply Floyd/Steinberg error diffusion to the
   2688 image. The basic strategy of dithering is to  trade 
   2689 intensity
   2690 resolution  for  spatial  resolution  by 
   2691 averaging the intensities  of  several 
   2692 neighboring  pixels. Images which  suffer  from 
   2693 severe  contouring  when  reducing colors can be
   2694 improved with this option. The quantizeColors or monochrome option must
   2695 be set for this option to take effect.</font></td>
   2696     </tr>
   2697     <tr>
   2698       <td>
   2699       <center><a name="quantizeTreeDepth"></a> <font size="-1">quantize-</font>
   2700       <br>
   2701       <font size="-1">TreeDepth</font></center>
   2702       </td>
   2703       <td><font size="-1">size_t </font></td>
   2704       <td><font size="-1">void</font></td>
   2705       <td><font size="-1">size_t treeDepth_</font></td>
   2706       <td><font size="-1">Depth of the quantization color
   2707 classification tree. Values of 0 or 1 allow selection of the optimal
   2708 tree depth for the color reduction algorithm. Values between 2 and 8
   2709 may be used to manually adjust the tree depth.</font></td>
   2710     </tr>
   2711     <tr>
   2712       <td>
   2713       <center><a name="renderingIntent"></a> <font size="-1">rendering-</font>
   2714       <br>
   2715       <font size="-1">Intent</font></center>
   2716       </td>
   2717       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#RenderingIntent">RenderingIntent</a>
   2718       </font></td>
   2719       <td><font size="-1">void</font></td>
   2720       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#RenderingIntent">RenderingIntent</a>
   2721 render_</font></td>
   2722       <td><font size="-1">The type of rendering intent</font></td>
   2723     </tr>
   2724     <tr>
   2725       <td>
   2726       <center><a name="resolutionUnits"></a> <font size="-1">resolution-</font>
   2727       <br>
   2728       <font size="-1">Units</font></center>
   2729       </td>
   2730       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#ResolutionType">ResolutionType</a>
   2731       </font></td>
   2732       <td><font size="-1">void</font></td>
   2733       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#ResolutionType">ResolutionType</a>
   2734 units_</font></td>
   2735       <td><font size="-1">Units of image resolution</font></td>
   2736     </tr>
   2737     <tr>
   2738       <td>
   2739       <center><a name="rows"></a> <font size="-1">rows</font></center>
   2740       </td>
   2741       <td><font size="-1">size_t</font></td>
   2742       <td><font size="-1">void</font></td>
   2743       <td bgcolor="#666666"><font size="-1"> </font></td>
   2744       <td><font size="-1">The number of pixel rows in the image</font></td>
   2745     </tr>
   2746     <tr>
   2747       <td>
   2748       <center><a name="scene"></a> <font size="-1">scene</font></center>
   2749       </td>
   2750       <td><font size="-1">size_t</font></td>
   2751       <td><font size="-1">void</font></td>
   2752       <td><font size="-1">size_t scene_</font></td>
   2753       <td><font size="-1">Image scene number</font></td>
   2754     </tr>
   2755     <tr>
   2756       <td>
   2757       <center><a name="signature"></a> <font size="-1">signature</font></center>
   2758       </td>
   2759       <td><font size="-1">string</font></td>
   2760       <td><font size="-1">bool force_ = false</font></td>
   2761       <td bgcolor="#666666"><font size="-1"> </font></td>
   2762       <td><font size="-1">Image MD5 signature. Set force_ to 'true' to
   2763 force re-computation of signature.</font></td>
   2764     </tr>
   2765     <tr>
   2766       <td>
   2767       <center><a name="size"></a> <font size="-1">size</font></center>
   2768       </td>
   2769       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a> </font></td>
   2770       <td><font size="-1">void</font></td>
   2771       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/Geometry.html">Geometry</a>
   2772 &amp;geometry_</font></td>
   2773       <td><font size="-1">Width and height of a raw image (an image
   2774 which does not support width and height information).  Size may
   2775 also be used to affect the image size read from a multi-resolution
   2776 format (e.g. Photo CD, JBIG, or JPEG.</font></td>
   2777     </tr>
   2778     <tr>
   2779       <td style="text-align: center;">
   2780       <center><a name="strip"></a> <font size="-1">strip</font></center>
   2781       </td>
   2782       <td><font size="-1">void</font></td>
   2783       <td><font size="-1">strips an image of all profiles and comments.</font></td>
   2784     </tr>
   2785     <tr>
   2786       <td>
   2787       <center><a name="strokeAntiAlias"></a> <font size="-1">strokeAntiAlias</font></center>
   2788       </td>
   2789       <td><font size="-1">bool</font></td>
   2790       <td><font size="-1">void</font></td>
   2791       <td><font size="-1">bool flag_</font></td>
   2792       <td><font size="-1">Enable or disable anti-aliasing when drawing
   2793 object outlines.</font></td>
   2794     </tr>
   2795     <tr>
   2796       <td>
   2797       <center><a name="strokeColor"></a> <font size="-1">strokeColor</font></center>
   2798       </td>
   2799       <td><font size="-1">Color</font></td>
   2800       <td><font size="-1">void</font></td>
   2801       <td><font size="-1">const Color &amp;strokeColor_</font></td>
   2802       <td><font size="-1">Color to use when drawing object outlines</font></td>
   2803     </tr>
   2804     <tr>
   2805       <td>
   2806       <center><a name="strokeDashOffset"></a> <font size="-1">strokeDashOffset</font></center>
   2807       </td>
   2808       <td><font size="-1">size_t</font></td>
   2809       <td><font size="-1">void</font></td>
   2810       <td><font size="-1">double strokeDashOffset_</font></td>
   2811       <td><font size="-1">While drawing using a dash pattern, specify
   2812 distance into the dash pattern to start the dash (default 0).</font></td>
   2813     </tr>
   2814     <tr>
   2815       <td>
   2816       <center><a name="strokeDashArray"></a> <font size="-1">strokeDashArray</font></center>
   2817       </td>
   2818       <td><font size="-1">const double*</font></td>
   2819       <td><font size="-1">void</font></td>
   2820       <td><font size="-1">const double* strokeDashArray_</font></td>
   2821       <td><font size="-1">Specify the pattern of dashes and gaps used
   2822 to stroke paths. The strokeDashArray represents a zero-terminated
   2823 array of numbers that specify the lengths (in pixels) of alternating
   2824 dashes and gaps in user units. If an odd number of values is provided,
   2825 then the list of values is repeated to yield an even number of
   2826 values.  A typical strokeDashArray_ array might contain the
   2827 members 5 3 2 0, where the zero value indicates the end of the pattern
   2828 array.</font></td>
   2829     </tr>
   2830     <tr>
   2831       <td>
   2832       <center><a name="strokeLineCap"></a> <font size="-1">strokeLineCap</font></center>
   2833       </td>
   2834       <td><font size="-1">LineCap</font></td>
   2835       <td><font size="-1">void</font></td>
   2836       <td><font size="-1">LineCap lineCap_</font></td>
   2837       <td><font size="-1">Specify the shape to be used at the corners
   2838 of paths (or other vector shapes) when they are stroked. Values of
   2839 LineJoin are UndefinedJoin, MiterJoin, RoundJoin, and BevelJoin.</font></td>
   2840     </tr>
   2841     <tr>
   2842       <td>
   2843       <center><a name="strokeLineJoin"></a> <font size="-1">strokeLineJoin</font></center>
   2844       </td>
   2845       <td><font size="-1">LineJoin</font></td>
   2846       <td><font size="-1">void</font></td>
   2847       <td><font size="-1">LineJoin lineJoin_</font></td>
   2848       <td><font size="-1">Specify the shape to be used at the corners
   2849 of paths (or other vector shapes) when they are stroked. Values of
   2850 LineJoin are UndefinedJoin, MiterJoin, RoundJoin, and BevelJoin.</font></td>
   2851     </tr>
   2852     <tr>
   2853       <td>
   2854       <center><a name="strokeMiterLimit"></a> <font size="-1">strokeMiterLimit</font></center>
   2855       </td>
   2856       <td><font size="-1">size_t</font></td>
   2857       <td><font size="-1">void</font></td>
   2858       <td><font size="-1">size_t miterLimit_</font></td>
   2859       <td><font size="-1">Specify miter limit. When two line segments
   2860 meet at a sharp angle and miter joins have been specified for
   2861 'lineJoin', it is possible for the miter to extend far beyond the
   2862 thickness of the line stroking the path. The miterLimit' imposes a
   2863 limit on the ratio of the miter length to the 'lineWidth'. The default
   2864 value of this parameter is 4.</font></td>
   2865     </tr>
   2866     <tr>
   2867       <td>
   2868       <center><a name="strokeWidth"></a> <font size="-1">strokeWidth</font></center>
   2869       </td>
   2870       <td><font size="-1">double</font></td>
   2871       <td><font size="-1">void</font></td>
   2872       <td><font size="-1">double strokeWidth_</font></td>
   2873       <td><font size="-1">Stroke width for use when drawing vector
   2874 objects (default one)</font></td>
   2875     </tr>
   2876     <tr>
   2877       <td>
   2878       <center><a name="strokePattern"></a> <font size="-1">strokePattern</font></center>
   2879       </td>
   2880       <td><font size="-1">Image</font></td>
   2881       <td><font size="-1">void</font></td>
   2882       <td><font size="-1">const Image &amp;strokePattern_</font></td>
   2883       <td><font size="-1">Pattern image to use while drawing object
   2884 stroke (outlines).</font></td>
   2885     </tr>
   2886     <tr>
   2887       <td>
   2888       <center><a name="subImage"></a> <font size="-1">subImage</font></center>
   2889       </td>
   2890       <td><font size="-1">size_t</font></td>
   2891       <td><font size="-1">void</font></td>
   2892       <td><font size="-1">size_t subImage_</font></td>
   2893       <td><font size="-1">Subimage of an image sequence</font></td>
   2894     </tr>
   2895     <tr>
   2896       <td>
   2897       <center><a name="subRange"></a> <font size="-1">subRange</font></center>
   2898       </td>
   2899       <td><font size="-1">size_t</font></td>
   2900       <td><font size="-1">void</font></td>
   2901       <td><font size="-1">size_t subRange_</font></td>
   2902       <td><font size="-1">Number of images relative to the base image</font></td>
   2903     </tr>
   2904     <tr>
   2905       <td valign="middle">
   2906       <div align="center"><a name="textEncoding"></a> <small>textEncoding</small><br>
   2907       </div>
   2908       </td>
   2909       <td valign="middle"><small>string</small><small><br>
   2910       </small></td>
   2911       <td valign="middle"><small>void</small><small><br>
   2912       </small></td>
   2913       <td valign="middle"><small>const std::string &amp;encoding_</small><small><br>
   2914       </small></td>
   2915       <td valign="top"><small>Specify the code set to use for text
   2916 annotations. The only character encoding which may be specified at
   2917 this time is "UTF-8" for representing </small><small><a
   2918  href="http://www.unicode.org/"> Unicode </a> </small><small>as a
   2919 sequence of bytes. Specify an empty string to use the default ASCII
   2920 encoding. Successful text annotation using Unicode may require fonts
   2921 designed to support Unicode.</small><br>
   2922       </td>
   2923     </tr>
   2924     <tr>
   2925       <td>
   2926       <center><a name="tileName"></a> <font size="-1">tileName</font></center>
   2927       </td>
   2928       <td><font size="-1">string</font></td>
   2929       <td><font size="-1">void</font></td>
   2930       <td><font size="-1">const string &amp;tileName_</font></td>
   2931       <td><font size="-1">Tile name</font></td>
   2932     </tr>
   2933     <tr>
   2934       <td>
   2935       <center><a name="totalColors"></a> <font size="-1">totalColors</font></center>
   2936       </td>
   2937       <td><font size="-1">size_t</font></td>
   2938       <td><font size="-1">void</font></td>
   2939       <td bgcolor="#666666"><font size="-1"> </font></td>
   2940       <td><font size="-1">Number of colors in the image</font></td>
   2941     </tr>
   2942     <tr>
   2943       <td>
   2944       <center><a name="type"></a> <font size="-1">type</font></center>
   2945       </td>
   2946       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#ImageType">ImageType</a>
   2947       </font></td>
   2948       <td><font size="-1">void</font></td>
   2949       <td bgcolor="#ffffff"><font size="-1"><a
   2950  href="http://www.imagemagick.org/Magick++/Enumerations.html#ImageType"> ImageType</a> </font></td>
   2951       <td><font size="-1">Image type.</font></td>
   2952     </tr>
   2953     <tr>
   2954       <td>
   2955       <center><a name="verbose"></a> <font size="-1">verbose</font></center>
   2956       </td>
   2957       <td><font size="-1">bool</font></td>
   2958       <td><font size="-1">void</font></td>
   2959       <td><font size="-1">bool verboseFlag_</font></td>
   2960       <td><font size="-1">Print detailed information about the image</font></td>
   2961     </tr>
   2962     <tr>
   2963       <td>
   2964       <center><a name="view"></a> <font size="-1">view</font></center>
   2965       </td>
   2966       <td><font size="-1">string</font></td>
   2967       <td><font size="-1">void</font></td>
   2968       <td><font size="-1">const string &amp;view_</font></td>
   2969       <td><font size="-1">FlashPix viewing parameters.</font></td>
   2970     </tr>
   2971     <tr>
   2972       <td>
   2973       <center><a name="virtualPixelMethod"></a> <font size="-1">virtualPixelMethod</font></center>
   2974       </td>
   2975       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#VirtualPixelMethod">VirtualPixelMethod</a>
   2976       </font></td>
   2977       <td><small><font size="-1"><small>void</small></font></small></td>
   2978       <td><small><font size="-1"><small><a
   2979  href="http://www.imagemagick.org/Magick++/Enumerations.html#VirtualPixelMethod">VirtualPixelMethod</a>
   2980 virtualPixelMethod_</small></font></small></td>
   2981       <td><font size="-1">Image virtual pixel method.</font></td>
   2982     </tr>
   2983     <tr>
   2984       <td>
   2985       <center><a name="x11Display"></a> <font size="-1">x11Display</font></center>
   2986       </td>
   2987       <td><font size="-1">string (e.g. "hostname:0.0")</font></td>
   2988       <td><font size="-1">void</font></td>
   2989       <td><font size="-1">const string &amp;display_</font></td>
   2990       <td><font size="-1">X11 display to display to, obtain fonts from,
   2991 or to capture image from</font></td>
   2992     </tr>
   2993     <tr>
   2994       <td>
   2995       <center><a name="xResolution"></a> <font size="-1">xResolution</font></center>
   2996       </td>
   2997       <td><font size="-1">double</font></td>
   2998       <td><font size="-1">void</font></td>
   2999       <td bgcolor="#666666"><font size="-1"> </font></td>
   3000       <td><font size="-1">x resolution of the image</font></td>
   3001     </tr>
   3002     <tr>
   3003       <td>
   3004       <center><a name="yResolution"></a> <font size="-1">yResolution</font></center>
   3005       </td>
   3006       <td><font size="-1">double</font></td>
   3007       <td><font size="-1">void</font></td>
   3008       <td bgcolor="#666666"><font size="-1"> </font></td>
   3009       <td><font size="-1">y resolution of the image</font></td>
   3010     </tr>
   3011   </tbody>
   3012 </table></ul>
   3013 </div>
   3014 <h2> <a name="Raw Image Pixel Access"></a> Low-Level Image Pixel Access</h2>
   3015 <div class="doc-section">
   3016 Image pixels (of type <i><a href="http://www.imagemagick.org/Magick++/PixelPacket.html">PixelPacket</a> </i>)
   3017 may be accessed directly via the <i>Image Pixel Cache</i> .  The
   3018 image pixel cache is a rectangular window into the actual image pixels
   3019 (which may be in memory, memory-mapped from a disk file, or entirely on
   3020 disk). Two interfaces exist to access the <i>Image Pixel Cache.</i>
   3021 The
   3022 interface described here (part of the <i>Image</i> class) supports
   3023 only
   3024 one view at a time. See the <i><a href="http://www.imagemagick.org/Magick++/Pixels.html">Pixels</a> </i>
   3025 class for a more abstract interface which supports simultaneous pixel
   3026 views (up to the number of rows). As an analogy, the interface
   3027 described
   3028 here relates to the <i><a href="http://www.imagemagick.org/Magick++/Pixels.html">Pixels</a> </i> class as
   3029 stdio's gets() relates to fgets(). The <i><a href="http://www.imagemagick.org/Magick++/Pixels.html"> Pixels</a>
   3030 </i>class provides the more general form of the interface.
   3031 <p>Obtain existing image pixels via <i>getPixels()</i>. Create a new
   3032 pixel region using <i>setPixels().</i></p>
   3033 <p>In order to ensure that only the current generation of the image is
   3034 modified, the Image's <a href="Image++.html#modifyImage">modifyImage()</a> method
   3035 should be invoked to reduce the reference count on the underlying image
   3036 to one. If this is not done, then it is possible for a previous
   3037 generation of the image to be modified due to the use of reference
   3038 counting when copying or constructing an Image.<br>
   3039 </p>
   3040 <p>Depending on the capabilities of the operating system, and the
   3041 relationship of the window to the image, the pixel cache may be a copy
   3042 of the pixels in the selected window, or it may be the actual image
   3043 pixels. In any case calling <i>syncPixels()</i> insures that the base
   3044 image is updated with the contents of the modified pixel cache. The
   3045 method <i> readPixels()</i> supports copying foreign pixel data
   3046 formats
   3047 into the pixel cache according to the <i>QuantumTypes</i>. The method <i>writePixels()</i>
   3048 supports copying the pixels in the cache to a foreign pixel
   3049 representation according to the format specified by <i>QuantumTypes</i>.</p>
   3050 <p>The pixel region is effectively a small image in which the pixels
   3051 may be accessed, addressed, and updated, as shown in the following
   3052 example:
   3053 <pre class="code">
   3054 <p><img class="icon" src="../../api/Cache.png" name="Graphic1" width="254" border="0" /></p>
   3055 Image image("cow.png"); 
   3056 // Ensure that there are no other references to this image.
   3057 image.modifyImage();
   3058 // Set the image type to TrueColor DirectClass representation.
   3059 image.type(TrueColorType);
   3060 // Request pixel region with size 60x40, and top origin at 20x30 
   3061 ssize_t columns = 60; 
   3062 PixelPacket *pixel_cache = image.getPixels(20,30,columns,40); 
   3063 // Set pixel at column 5, and row 10 in the pixel cache to red. 
   3064 ssize_t column = 5; 
   3065 ssize_t row = 10; 
   3066 PixelPacket *pixel = pixel_cache+row*columns+column; 
   3067 *pixel = Color("red"); 
   3068 // Save changes to underlying image .
   3069 image.syncPixels();
   3070   // Save updated image to file.
   3071 image.write("horse.png");
   3072 </pre>
   3073 </p>
   3074 <p>The image cache supports the following methods: <br>
   3075  
   3076 <ul><table border="1" width="100%">
   3077   <caption>Image Cache Methods</caption> <tbody>
   3078     <tr>
   3079       <td>
   3080       <center><b>Method</b></center>
   3081       </td>
   3082       <td>
   3083       <center><b>Returns</b></center>
   3084       </td>
   3085       <td>
   3086       <center><b>Signature</b></center>
   3087       </td>
   3088       <td>
   3089       <center><b>Description</b></center>
   3090       </td>
   3091     </tr>
   3092     <tr>
   3093       <td>
   3094       <center><a name="getConstPixels"></a> <font size="-1">getConstPixels</font></center>
   3095       </td>
   3096       <td><font size="-1">const <a href="http://www.imagemagick.org/Magick++/PixelPacket.html">PixelPacket</a>
   3097 *</font></td>
   3098       <td><font size="-1">const ssize_t x_, const ssize_t y_, const size_t
   3099 columns_, const size_t rows_</font></td>
   3100       <td><font size="-1">Transfers pixels from the image to the pixel
   3101 cache as defined by the specified rectangular region. </font><font
   3102  size="-1">The returned pointer remains valid until the next getPixel,
   3103 getConstPixels, or setPixels call and should never be deallocated by
   3104 the
   3105 user.</font></td>
   3106     </tr>
   3107     <tr>
   3108       <td>
   3109       <center><a name="getConstIndexes"></a> <font size="-1">getConstIndexes</font></center>
   3110       </td>
   3111       <td><font size="-1">const IndexPacket*</font></td>
   3112       <td><font size="-1">void</font></td>
   3113       <td><font size="-1">Returns a pointer to the Image pixel indexes
   3114 corresponding to a previous </font><font size="-1">getPixel,
   3115 getConstPixels, or setPixels call.  </font><font size="-1">The
   3116 returned pointer remains valid until the next getPixel, getConstPixels,
   3117 or setPixels call and should never be deallocated by the user.</font><font
   3118  size="-1"> Only valid for PseudoClass images or CMYKA images. The
   3119 pixel indexes represent an array of type IndexPacket, with each entry
   3120 corresponding to an x,y pixel position. For PseudoClass images, the
   3121 entry's value is the offset into the colormap (see <a href="Image++.html#colorMap">colorMap</a>
   3122 ) for that pixel. For CMYKA images, the indexes are used to contain the
   3123 alpha channel.</font></td>
   3124     </tr>
   3125     <tr>
   3126       <td>
   3127       <center><a name="getIndexes"></a> <font size="-1">getIndexes</font></center>
   3128       </td>
   3129       <td><font size="-1">IndexPacket*</font></td>
   3130       <td><font size="-1">void</font></td>
   3131       <td><font size="-1">Returns a pointer to the Image pixel indexes
   3132 corresponding to the pixel region requested by the last <a
   3133  href="Image++.html#getConstPixels">getConstPixels</a> , <a href="Image++.html#getPixels">getPixels</a>
   3134 , or <a href="Image++.html#setPixels">setPixels</a> call. </font><font
   3135  size="-1">The
   3136 returned pointer remains valid until the next getPixel, getConstPixels,
   3137 or setPixels call and should never be deallocated by the user.</font><font
   3138  size="-1"> </font><font size="-1">Only valid for PseudoClass images
   3139 or
   3140 CMYKA images. The pixel indexes represent an array of type
   3141 IndexPacket, with each entry corresponding to a pixel x,y position. For
   3142 PseudoClass images, the entry's value is the offset into the colormap
   3143 (see <a href="Image++.html#colorMap">colorMap</a> )  for that pixel. For
   3144 CMYKA
   3145 images, the indexes are used to contain the alpha channel.</font></td>
   3146     </tr>
   3147     <tr>
   3148       <td>
   3149       <center><a name="getPixels"></a> <font size="-1">getPixels</font></center>
   3150       </td>
   3151       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/PixelPacket.html">PixelPacket</a> *</font></td>
   3152       <td><font size="-1">const ssize_t x_, const ssize_t y_, const size_t
   3153 columns_, const size_t rows_</font></td>
   3154       <td><font size="-1">Transfers pixels from the image to the pixel
   3155 cache as defined by the specified rectangular region. Modified pixels
   3156 may be subsequently transferred back to the image via syncPixels. </font><font
   3157  size="-1">The returned pointer remains valid until the next getPixel,
   3158 getConstPixels, or setPixels call and should never be deallocated by
   3159 the
   3160 user.</font><font size="-1"></font></td>
   3161     </tr>
   3162     <tr>
   3163       <td>
   3164       <center><a name="setPixels"></a> <font size="-1">setPixels</font></center>
   3165       </td>
   3166       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/PixelPacket.html">PixelPacket</a> *</font></td>
   3167       <td><font size="-1">const ssize_t x_, const ssize_t y_, const size_t
   3168 columns_, const size_t rows_</font></td>
   3169       <td><font size="-1">Allocates a pixel cache region to store image
   3170 pixels as defined by the region rectangle.  This area is
   3171 subsequently transferred from the pixel cache to the image via
   3172 syncPixels. </font><font size="-1">The returned pointer remains
   3173 valid until the next getPixel, getConstPixels, or setPixels call and
   3174 should never be deallocated by the user.</font></td>
   3175     </tr>
   3176     <tr>
   3177       <td>
   3178       <center><a name="syncPixels"></a> <font size="-1">syncPixels</font></center>
   3179       </td>
   3180       <td><font size="-1">void</font></td>
   3181       <td><font size="-1">void</font></td>
   3182       <td><font size="-1">Transfers the image cache pixels to the image.</font></td>
   3183     </tr>
   3184     <tr>
   3185       <td>
   3186       <center><a name="readPixels"></a> <font size="-1">readPixels</font></center>
   3187       </td>
   3188       <td><font size="-1">void</font></td>
   3189       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#QuantumTypes">QuantumTypes</a>
   3190 quantum_, unsigned char *source_,</font></td>
   3191       <td><font size="-1">Transfers one or more pixel components from a
   3192 buffer or file into the image pixel cache of an image. ReadPixels is
   3193 typically used to support image decoders. The region transferred
   3194 corresponds to the region set by a preceding setPixels call.</font></td>
   3195     </tr>
   3196     <tr>
   3197       <td>
   3198       <center><a name="writePixels"></a> <font size="-1">writePixels</font></center>
   3199       </td>
   3200       <td><font size="-1">void</font></td>
   3201       <td><font size="-1"><a href="http://www.imagemagick.org/Magick++/Enumerations.html#QuantumTypes">QuantumTypes</a>
   3202 quantum_, unsigned char *destination_</font></td>
   3203       <td><font size="-1">Transfers one or more pixel components from
   3204 the image pixel cache to a buffer or file. WritePixels is typically
   3205 used to support image encoders. The region transferred corresponds to
   3206 the region set by a preceding getPixels or getConstPixels call.</font></td>
   3207     </tr>
   3208   </tbody>
   3209 </table></ul>
   3210 </p>
   3211 </div>
   3212 </div>
   3213     </div>
   3214   </main><!-- /.container -->
   3215   <footer class="magick-footer">
   3216     <p><a href="../../www/security-policy.html">Security</a> 
   3217     <a href="../../www/architecture.html">Architecture</a> 
   3218     <a href="../../www/links.html">Related</a> 
   3219      <a href="../../www/sitemap.html">Sitemap</a>
   3220        
   3221     <a href="Image++.html#"><img class="d-inline" id="wand" alt="And Now a Touch of Magick" width="16" height="16" src="../../images/wand.ico"/></a>
   3222        
   3223     <a href="http://pgp.mit.edu/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> 
   3224     <a href="../../www/support.html">Donate</a> 
   3225     <a href="../../www/contact.html">Contact Us</a>
   3226     <br/>
   3227     <small> 1999-2019 ImageMagick Studio LLC</small></p>
   3228   </footer>
   3229 
   3230   <!-- Javascript assets -->
   3231   <script src="../assets/magick.js" crossorigin="anonymous"></script>
   3232   <script>window.jQuery || document.write('<script src="https://localhost/ajax/libs/jquery/3.3.1/jquery.min.js"><\/script>')</script>
   3233 </body>
   3234 </html>
   3235 <!-- Magick Cache 30th December 2018 07:43 -->