1 2 3 4 5 <!DOCTYPE html> 6 <html lang="en"> 7 <head> 8 <title>ImageMagick: Command-line Tools: Stream</title> 9 <meta charset="utf-8" /> 10 <meta http-equiv="X-UA-Compatible" content="IE=edge" /> 11 <meta name="viewport" content="width=device-width, initial-scale=1" /> 12 <meta http-equiv="content-type" content="text/html; charset=utf-8"/> 13 <meta name="application-name" content="ImageMagick"/> 14 <meta name="description" content="ImageMagick is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, JPEG-2000, GIF, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bzier curves."/> 15 <meta name="application-url" content="http://www.imagemagick.org"/> 16 <meta name="generator" content="PHP"/> 17 <meta name="keywords" content="command-line, tools:, stream, ImageMagick, PerlMagick, image processing, image, photo, software, Magick++, OpenMP, convert"/> 18 <meta name="rating" content="GENERAL"/> 19 <meta name="robots" content="INDEX, FOLLOW"/> 20 <meta name="generator" content="ImageMagick Studio LLC"/> 21 <meta name="author" content="ImageMagick Studio LLC"/> 22 <meta name="revisit-after" content="2 DAYS"/> 23 <meta name="resource-type" content="document"/> 24 <meta name="copyright" content="Copyright (c) 1999-2016 ImageMagick Studio LLC"/> 25 <meta name="distribution" content="Global"/> 26 <meta name="magick-serial" content="P131-S030410-R485315270133-P82224-A6668-G1245-1"/> 27 <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" /> 28 <link rel="icon" href="../images/wand.png"/> 29 <link rel="shortcut icon" href="../images/wand.ico"/> 30 <link rel="stylesheet" type="text/css" href="http://fonts.googleapis.com/css?family=Roboto:900,400,400italic,700,700italic,300,300italic|Open+Sans:300italic,400italic,700italic,300,400,600,700"> 31 <link rel="stylesheet" href="css/magick.css"/> 32 </head> 33 <body> 34 <div class="main"> 35 <div class="magick-masthead"> 36 <div class="container"> 37 <script async="async" src="http://localhost/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" 38 style="display:block" 39 data-ad-client="ca-pub-3129977114552745" 40 data-ad-slot="6345125851" 41 data-ad-format="auto"></ins> 42 <script> 43 (adsbygoogle = window.adsbygoogle || []).push({}); 44 </script> 45 <nav class="magick-nav"> 46 <a class="magick-nav-item " href="../index.html">Home</a> 47 <a class="magick-nav-item " href="binary-releases.html">Download</a> 48 <a class="magick-nav-item " href="command-line-tools.html">Tools</a> 49 <a class="magick-nav-item " href="command-line-processing.html">Command-line</a> 50 <a class="magick-nav-item " href="resources.html">Resources</a> 51 <a class="magick-nav-item " href="api.html">Develop</a> 52 <a class="magick-nav-item " href="http://www.imagemagick.org/script/search.php">Search</a> 53 <a class="magick-nav-item pull-right" href="https://www.imagemagick.org/discourse-server/">Community</a> 54 </nav> 55 </div> 56 </div> 57 <div class="container"> 58 <div class="magick-header"> 59 <p class="text-center"><a href="stream.html#usage">Example Usage</a> <a href="stream.html#options">Option Summary</a></p> 60 61 <p class="lead magick-description"><code>Stream</code> is a lightweight tool to stream one or more pixel components of the image or portion of the image to your choice of storage formats. It writes the pixel components as they are read from the input image a row at a time making <code>stream</code> desirable when working with large images or when you require raw pixel components.</p> 62 63 <h2 class="magick-header"><a id="usage"></a>Example Usage</h2> 64 65 <p>We list a few examples of the <code>stream</code> command here to illustrate its usefulness and ease of use. To get started, lets stream the red, green, blue components of a 640x480 JPEG image to disk as unsigned characters:</p> 66 67 <pre> 68 stream -map rgb -storage-type char image.jpg pixels.dat 69 display -depth 8 -size 640x480 rgb:pixels.dat 70 </pre> 71 72 <p>Here we extract a 100x100 region from a TIFF image in the grayscale format as doubles:</p> 73 74 <pre> 75 stream -map i -storage-type double -extract 100x100+30+40 image.tif gray.raw 76 </pre> 77 78 <p>You can also associate the region to extract with the image filename:</p> 79 80 <pre> 81 stream -map i -storage-type double 'image.tif[100x100+30+40]' gray.raw 82 </pre> 83 84 85 <h2 class="magick-header"><a id="options"></a>Option Summary</h2> 86 87 <p>The <code>stream</code> command recognizes these options. Click on an option to get more details about how that option works.</p> 88 89 <table class="table table-condensed table-striped"> 90 <tbody> 91 <tr> 92 <th align="left">Option</th> 93 <th align="left">Description</th> 94 </tr> 95 96 <tr> 97 <td><a href="command-line-options.html#authenticate">-authenticate <var>value</var></a></td> 98 <td>decrypt image with this password</td> 99 </tr> 100 101 <tr> 102 <td><a href="command-line-options.html#channel">-channel <var>type</var></a></td> 103 <td>apply option to select image channels</td> 104 </tr> 105 106 <tr> 107 <td><a href="command-line-options.html#colorspace">-colorspace <var>type</var></a></td> 108 <td>set image colorspace</td> 109 </tr> 110 111 <tr> 112 <td><a href="command-line-options.html#debug">-debug <var>events</var></a></td> 113 <td>display copious debugging information</td> 114 </tr> 115 116 <tr> 117 <td><a href="command-line-options.html#define">-define <var>format:option</var></a></td> 118 <td>define one or more image format options</td> 119 </tr> 120 121 <tr> 122 <td><a href="command-line-options.html#density">-density <var>geometry</var></a></td> 123 <td>horizontal and vertical density of the image</td> 124 </tr> 125 126 <tr> 127 <td><a href="command-line-options.html#depth">-depth <var>value</var></a></td> 128 <td>image depth</td> 129 </tr> 130 131 <tr> 132 <td><a href="command-line-options.html#extract">-extract <var>geometry</var></a></td> 133 <td>extract area from image</td> 134 </tr> 135 136 <tr> 137 <td><a href="command-line-options.html#help">-help</a></td> 138 <td>print program options</td> 139 </tr> 140 141 <tr> 142 <td><a href="command-line-options.html#interlace">-interlace <var>type</var></a></td> 143 <td>type of image interlacing scheme</td> 144 </tr> 145 146 <tr> 147 <td><a href="command-line-options.html#interpolate">-interpolate <var>method</var></a></td> 148 <td>pixel color interpolation method</td> 149 </tr> 150 151 <tr> 152 <td><a href="command-line-options.html#limit">-limit <var>type value</var></a></td> 153 <td>pixel cache resource limit</td> 154 </tr> 155 156 <tr> 157 <td><a href="command-line-options.html#list">-list <var>type</var></a></td> 158 <td>Color, Configure, Delegate, Format, Magic, Module, Resource, or Type</td> 159 </tr> 160 161 <tr> 162 <td><a href="command-line-options.html#log">-log <var>format</var></a></td> 163 <td>format of debugging information</td> 164 </tr> 165 166 <tr> 167 <td><a href="command-line-options.html#stream-map">-map <var>components</var></a></td> 168 <td>store pixels in this format.</td> 169 </tr> 170 171 <tr> 172 <td><a href="command-line-options.html#monitor">-monitor</a></td> 173 <td>monitor progress</td> 174 </tr> 175 176 <tr> 177 <td><a href="command-line-options.html#quantize">-quantize <var>colorspace</var></a></td> 178 <td>reduce image colors in this colorspace</td> 179 </tr> 180 181 <tr> 182 <td><a href="command-line-options.html#quiet">-quiet</a></td> 183 <td>suppress all warning messages</td> 184 </tr> 185 186 <tr> 187 <td><a href="command-line-options.html#regard-warnings">-regard-warnings</a></td> 188 <td>pay attention to warning messages.</td> 189 </tr> 190 191 <tr> 192 <td><a href="command-line-options.html#respect-parentheses">-respect-parentheses</a></td> 193 <td>settings remain in effect until parenthesis boundary.</td> 194 </tr> 195 196 <tr> 197 <td><a href="command-line-options.html#sampling-factor">-sampling-factor <var>geometry</var></a></td> 198 <td>horizontal and vertical sampling factor</td> 199 </tr> 200 201 <tr> 202 <td><a href="command-line-options.html#seed">-seed <var>value</var></a></td> 203 <td>seed a new sequence of pseudo-random numbers</td> 204 </tr> 205 206 <tr> 207 <td><a href="command-line-options.html#set">-set <var>attribute value</var></a></td> 208 <td>set an image attribute</td> 209 </tr> 210 211 <tr> 212 <td><a href="command-line-options.html#size">-size <var>geometry</var></a></td> 213 <td>width and height of image</td> 214 </tr> 215 216 <tr> 217 <td><a href="command-line-options.html#storage-type">-storage-type <var>type</var></a></td> 218 <td>store pixels with this storage type.</td> 219 </tr> 220 221 <tr> 222 <td><a href="command-line-options.html#synchronize">-synchronize</a></td> 223 <td>synchronize image to storage device</td> 224 </tr> 225 226 <tr> 227 <td><a href="command-line-options.html#taint">-taint</a></td> 228 <td>mark the image as modified</td> 229 </tr> 230 231 <tr> 232 <td><a href="command-line-options.html#transparent-color">-transparent-color <var>color</var></a></td> 233 <td>transparent color</td> 234 </tr> 235 236 <tr> 237 <td><a href="command-line-options.html#verbose">-verbose</a></td> 238 <td>print detailed information about the image</td> 239 </tr> 240 241 <tr> 242 <td><a href="command-line-options.html#version">-version</a></td> 243 <td>print version information</td> 244 </tr> 245 246 <tr> 247 <td><a href="command-line-options.html#virtual-pixel">-virtual-pixel <var>method</var></a></td> 248 <td>access method for pixels outside the boundaries of the image</td> 249 </tr> 250 251 </tbody> 252 </table> 253 254 </div> 255 <footer class="magick-footer"> 256 <p><a href="support.html">Donate</a> 257 <a href="sitemap.html">Sitemap</a> 258 <a href="links.html">Related</a> 259 <a href="architecture.html">Architecture</a> 260 </p> 261 <p><a href="stream.html#">Back to top</a> 262 <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> 263 <a href="http://www.imagemagick.org/script/contact.php">Contact Us</a></p> 264 <p><small> 1999-2016 ImageMagick Studio LLC</small></p> 265 </footer> 266 </div><!-- /.container --> 267 268 <script src="https://localhost/ajax/libs/jquery/1.11.3/jquery.min.js"></script> 269 <script src="../js/magick.html"></script> 270 </div> 271 </body> 272 </html> 273
