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| <h1>Module colormap |
| Methods</h1> |
| <p class="navigation-index">[<a href="#AcquireImageColormap">AcquireImageColormap</a> • <a href="#CycleColormap">CycleColormap</a>]</p> |
| |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/colormap |
| _8c.html" id="AcquireImageColormap">AcquireImageColormap</a></h2> |
| <div class="doc-section"> |
| |
| <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> |
| |
| <p>The format of the AcquireImageColormap method is:</p> |
| |
| <pre class="code"> |
| MagickBooleanType AcquireImageColormap(Image *image, |
| const size_t colors) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <h5>image</h5> |
| <p>the image.</p> |
| |
| <h5>colors</h5> |
| <p>the number of colors in the image colormap.</p> |
| |
| </div> |
| <h2><a href="http://www.imagemagick.org/api/MagickCore/colormap |
| _8c.html" id="CycleColormap">CycleColormap</a></h2> |
| <div class="doc-section"> |
| |
| <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> |
| |
| <p>The format of the CycleColormapImage method is:</p> |
| |
| <pre class="code"> |
| MagickBooleanType CycleColormapImage(Image *image,const ssize_t displace) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <h5>image</h5> |
| <p>the image.</p> |
| |
| <h5>displace</h5> |
| <p>displace the colormap this amount.</p> |
| |
| </div> |
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