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cristy | 2039843 | 2011-08-11 01:31:50 +0000 | [diff] [blame] | 239 | <h1>Module colormap Methods</h1> |
cristy | 751980d | 2012-06-03 23:18:35 +0000 | [diff] [blame] | 240 | <p class="navigation-index">[<a href="colormap.html#AcquireImageColormap">AcquireImageColormap</a> • <a href="colormap.html#CycleColormap">CycleColormap</a>]</p> |
cristy | f1196bb | 2010-02-13 21:18:03 +0000 | [diff] [blame] | 241 | |
cristy | 2039843 | 2011-08-11 01:31:50 +0000 | [diff] [blame] | 242 | <h2><a href="http://www.imagemagick.org/api/MagickCore/colormap_8c.html" id="AcquireImageColormap">AcquireImageColormap</a></h2> |
| 243 | <div class="doc-section"> |
| 244 | |
| 245 | <p>AcquireImageColormap() allocates an image colormap and initializes it to a linear gray colorspace. If the image already has a colormap, it is replaced. AcquireImageColormap() returns MagickTrue if successful, otherwise MagickFalse if there is not enough memory.</p> |
| 246 | |
| 247 | <p>The format of the AcquireImageColormap method is:</p> |
| 248 | |
| 249 | <pre class="code"> |
| 250 | MagickBooleanType AcquireImageColormap(Image *image, |
| 251 | const size_t colors) |
| 252 | </pre> |
| 253 | |
| 254 | <p>A description of each parameter follows:</p> |
| 255 | |
| 256 | <h5>image</h5> |
| 257 | <p>the image.</p> |
| 258 | |
| 259 | <h5>colors</h5> |
| 260 | <p>the number of colors in the image colormap.</p> |
| 261 | |
| 262 | </div> |
| 263 | <h2><a href="http://www.imagemagick.org/api/MagickCore/colormap_8c.html" id="CycleColormap">CycleColormap</a></h2> |
| 264 | <div class="doc-section"> |
| 265 | |
| 266 | <p>CycleColormap() displaces an image's colormap by a given number of positions. If you cycle the colormap a number of times you can produce a psychodelic effect.</p> |
| 267 | |
| 268 | <p>The format of the CycleColormapImage method is:</p> |
| 269 | |
| 270 | <pre class="code"> |
| 271 | MagickBooleanType CycleColormapImage(Image *image,const ssize_t displace) |
| 272 | </pre> |
| 273 | |
| 274 | <p>A description of each parameter follows:</p> |
| 275 | |
| 276 | <h5>image</h5> |
| 277 | <p>the image.</p> |
| 278 | |
| 279 | <h5>displace</h5> |
| 280 | <p>displace the colormap this amount.</p> |
| 281 | |
| 282 | </div> |
cristy | 06f63f2 | 2012-10-31 00:50:07 +0000 | [diff] [blame^] | 283 | |
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