1 2 3 4 5 <!DOCTYPE html> 6 <html lang="en"> 7 <head> 8 <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" /> 9 <title>ImageMagick: MagickCore, C API for ImageMagick: Paint on an Image</title> 10 <meta http-equiv="content-type" content="text/html; charset=utf-8"/> 11 <meta name="application-name" content="ImageMagick"/> 12 <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."/> 13 <meta name="application-url" content="http://www.imagemagick.org"/> 14 <meta name="generator" content="PHP"/> 15 <meta name="keywords" content="magickcore, c, api, for, imagemagick:, paint, on, an, image, 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) 1999-2016 ImageMagick Studio LLC"/> 23 <meta name="distribution" content="Global"/> 24 <meta name="magick-serial" content="P131-S030410-R485315270133-P82224-A6668-G1245-1"/> 25 <link rel="icon" href="../image/wand.png"/> 26 <link rel="shortcut icon" href="../image/wand.ico"/> 27 <link rel="stylesheet" href="../css/magick.php"/> 28 </head> 29 <body> 30 <div class="main"> 31 <div class="magick-masthead"> 32 <div class="container"> 33 <script async="async" src="http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" 34 style="display:block" 35 data-ad-client="ca-pub-3129977114552745" 36 data-ad-slot="6345125851" 37 data-ad-format="auto"></ins> 38 <script> 39 (adsbygoogle = window.adsbygoogle || []).push({}); 40 </script> 41 <nav class="magick-nav"> 42 <a class="magick-nav-item " href="../index.php">Home</a> 43 <a class="magick-nav-item " href="../script/binary-releases.php">Download</a> 44 <a class="magick-nav-item " href="../script/command-line-tools.php">Tools</a> 45 <a class="magick-nav-item " href="../script/command-line-options.php">Options</a> 46 <a class="magick-nav-item " href="../script/resources.php">Resources</a> 47 <a class="magick-nav-item " href="../script/api.php">Develop</a> 48 <a class="magick-nav-item " href="../script/search.php">Search</a> 49 <a class="magick-nav-item pull-right" href="http://www.imagemagick.org/discourse-server/">Community</a> 50 </nav> 51 </div> 52 </div> 53 <div class="container"> 54 <div class="magick-header"> 55 <p class="text-center"><a href="paint.php#FloodfillPaintImage">FloodfillPaintImage</a> • <a href="paint.php#OilPaintImage">OilPaintImage</a> • <a href="paint.php#OpaquePaintImage">OpaquePaintImage</a> • <a href="paint.php#TransparentPaintImage">TransparentPaintImage</a> • <a href="paint.php#TransparentPaintImageChroma">TransparentPaintImageChroma</a></p> 56 57 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/paint_8c.html" id="FloodfillPaintImage">FloodfillPaintImage</a></h2> 58 59 <p>FloodfillPaintImage() changes the color value of any pixel that matches target and is an immediate neighbor. If the method FillToBorderMethod is specified, the color value is changed for any neighbor pixel that does not match the bordercolor member of image.</p> 60 61 <p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p> 62 63 <p>The format of the FloodfillPaintImage method is:</p> 64 65 <pre class="text"> 66 MagickBooleanType FloodfillPaintImage(Image *image, 67 const DrawInfo *draw_info,const PixelInfo target, 68 const ssize_t x_offset,const ssize_t y_offset, 69 const MagickBooleanType invert,ExceptionInfo *exception) 70 </pre> 71 72 <p>A description of each parameter follows:</p> 73 74 <dd> 75 </dd> 76 77 <dd> </dd> 78 <dl class="dl-horizontal"> 79 <dt>image</dt> 80 <dd>the image. </dd> 81 82 <dd> </dd> 83 <dt>draw_info</dt> 84 <dd>the draw info. </dd> 85 86 <dd> </dd> 87 <dt>target</dt> 88 <dd>the RGB value of the target color. </dd> 89 90 <dd> </dd> 91 <dt>x_offset,y_offset</dt> 92 <dd>the starting location of the operation. </dd> 93 94 <dd> </dd> 95 <dt>invert</dt> 96 <dd>paint any pixel that does not match the target color. </dd> 97 98 <dd> </dd> 99 <dt>exception</dt> 100 <dd>return any errors or warnings in this structure. </dd> 101 102 <dd> </dd> 103 </dl> 104 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/paint_8c.html" id="OilPaintImage">OilPaintImage</a></h2> 105 106 <p>OilPaintImage() applies a special effect filter that simulates an oil painting. Each pixel is replaced by the most frequent color occurring in a circular region defined by radius.</p> 107 108 <p>The format of the OilPaintImage method is:</p> 109 110 <pre class="text"> 111 Image *OilPaintImage(const Image *image,const double radius, 112 const double sigma,ExceptionInfo *exception) 113 </pre> 114 115 <p>A description of each parameter follows:</p> 116 117 <dd> 118 </dd> 119 120 <dd> </dd> 121 <dl class="dl-horizontal"> 122 <dt>image</dt> 123 <dd>the image. </dd> 124 125 <dd> </dd> 126 <dt>radius</dt> 127 <dd>the radius of the circular neighborhood. </dd> 128 129 <dd> </dd> 130 <dt>sigma</dt> 131 <dd>the standard deviation of the Gaussian, in pixels. </dd> 132 133 <dd> </dd> 134 <dt>exception</dt> 135 <dd>return any errors or warnings in this structure. </dd> 136 137 <dd> </dd> 138 </dl> 139 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/paint_8c.html" id="OpaquePaintImage">OpaquePaintImage</a></h2> 140 141 <p>OpaquePaintImage() changes any pixel that matches color with the color defined by fill argument.</p> 142 143 <p>By default color must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. Fuzz defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color.</p> 144 145 <p>The format of the OpaquePaintImage method is:</p> 146 147 <pre class="text"> 148 MagickBooleanType OpaquePaintImage(Image *image,const PixelInfo *target, 149 const PixelInfo *fill,const MagickBooleanType invert, 150 ExceptionInfo *exception) 151 </pre> 152 153 <p>A description of each parameter follows:</p> 154 155 <dd> 156 </dd> 157 158 <dd> </dd> 159 <dl class="dl-horizontal"> 160 <dt>image</dt> 161 <dd>the image. </dd> 162 163 <dd> </dd> 164 <dt>target</dt> 165 <dd>the RGB value of the target color. </dd> 166 167 <dd> </dd> 168 <dt>fill</dt> 169 <dd>the replacement color. </dd> 170 171 <dd> </dd> 172 <dt>invert</dt> 173 <dd>paint any pixel that does not match the target color. </dd> 174 175 <dd> </dd> 176 <dt>exception</dt> 177 <dd>return any errors or warnings in this structure. </dd> 178 179 <dd> </dd> 180 </dl> 181 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/paint_8c.html" id="TransparentPaintImage">TransparentPaintImage</a></h2> 182 183 <p>TransparentPaintImage() changes the opacity value associated with any pixel that matches color to the value defined by opacity.</p> 184 185 <p>By default color must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. Fuzz defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color.</p> 186 187 <p>The format of the TransparentPaintImage method is:</p> 188 189 <pre class="text"> 190 MagickBooleanType TransparentPaintImage(Image *image, 191 const PixelInfo *target,const Quantum opacity, 192 const MagickBooleanType invert,ExceptionInfo *exception) 193 </pre> 194 195 <p>A description of each parameter follows:</p> 196 197 <dd> 198 </dd> 199 200 <dd> </dd> 201 <dl class="dl-horizontal"> 202 <dt>image</dt> 203 <dd>the image. </dd> 204 205 <dd> </dd> 206 <dt>target</dt> 207 <dd>the target color. </dd> 208 209 <dd> </dd> 210 <dt>opacity</dt> 211 <dd>the replacement opacity value. </dd> 212 213 <dd> </dd> 214 <dt>invert</dt> 215 <dd>paint any pixel that does not match the target color. </dd> 216 217 <dd> </dd> 218 <dt>exception</dt> 219 <dd>return any errors or warnings in this structure. </dd> 220 221 <dd> </dd> 222 </dl> 223 <h2><a href="http://nextgen.imagemagick.org/api/MagickCore/paint_8c.html" id="TransparentPaintImageChroma">TransparentPaintImageChroma</a></h2> 224 225 <p>TransparentPaintImageChroma() changes the opacity value associated with any pixel that matches color to the value defined by opacity.</p> 226 227 <p>As there is one fuzz value for the all the channels, TransparentPaintImage() is not suitable for the operations like chroma, where the tolerance for similarity of two color component (RGB) can be different. Thus we define this method to take two target pixels (one low and one high) and all the pixels of an image which are lying between these two pixels are made transparent.</p> 228 229 <p>The format of the TransparentPaintImageChroma method is:</p> 230 231 <pre class="text"> 232 MagickBooleanType TransparentPaintImageChroma(Image *image, 233 const PixelInfo *low,const PixelInfo *high,const Quantum opacity, 234 const MagickBooleanType invert,ExceptionInfo *exception) 235 </pre> 236 237 <p>A description of each parameter follows:</p> 238 239 <dd> 240 </dd> 241 242 <dd> </dd> 243 <dl class="dl-horizontal"> 244 <dt>image</dt> 245 <dd>the image. </dd> 246 247 <dd> </dd> 248 <dt>low</dt> 249 <dd>the low target color. </dd> 250 251 <dd> </dd> 252 <dt>high</dt> 253 <dd>the high target color. </dd> 254 255 <dd> </dd> 256 <dt>opacity</dt> 257 <dd>the replacement opacity value. </dd> 258 259 <dd> </dd> 260 <dt>invert</dt> 261 <dd>paint any pixel that does not match the target color. </dd> 262 263 <dd> </dd> 264 <dt>exception</dt> 265 <dd>return any errors or warnings in this structure. </dd> 266 267 <dd> </dd> 268 </dl> 269 </div> 270 <footer class="magick-footer"> 271 <p><a href="../script/support.php">Donate</a> 272 <a href="../script/sitemap.php">Sitemap</a> 273 <a href="../script/links.php">Related</a> 274 <a href="../script/architecture.php">Architecture</a> 275 </p> 276 <p><a href="paint.php#">Back to top</a> 277 <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> 278 <a href="../script/contact.php">Contact Us</a></p> 279 <p><small> 1999-2016 ImageMagick Studio LLC</small></p> 280 </footer> 281 </div><!-- /.container --> 282 283 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> 284 <script src="http://nextgen.imagemagick.org/js/magick.php"></script> 285 </div> 286 </body> 287 </html> 288
