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, initial-scale=1" /> 10 <title>ImageMagick - MagickCore, C API: Dealing with Image Colorspaces</title> 11 <meta name="application-name" content="ImageMagick" /> 12 <meta name="description" content="Use ImageMagick® to create, edit, compose, and convert digital images. Resize an image, crop it, change its shades and colors, add captions, and more." /> 13 <meta name="application-url" content="https://imagemagick.org" /> 14 <meta name="generator" content="PHP" /> 15 <meta name="keywords" content="magickcore, c, api:, dealing, with, image, colorspaces, image processing software" /> 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) 1999-2020 ImageMagick Studio LLC" /> 23 <meta name="distribution" content="Global" /> 24 <meta name="magick-serial" content="P131-S030410-R485315270133-P82224-A6668-G1245-1" /> 25 <meta property='og:url' content='../../' /> 26 <meta property='og:title' content='ImageMagick' /> 27 <meta property='og:image' content='../../../images/logo.png' /> 28 <meta property='og:type' content='website' /> 29 <meta property='og:site_name' content='ImageMagick' /> 30 <meta property='og:description' content="Create, Edit, Compose, or Convert Digital Images" /> 31 <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" /> 32 <link href="colorspace.html" rel="canonical" /> 33 <link href="../../../images/wand.png" rel="icon" /> 34 <link href="../../../images/wand.ico" rel="shortcut icon" /> 35 <link href="../../assets/magick.css" rel="stylesheet" /> 36</head> 37<body> 38 <nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top"> 39 <div class="container-fluid"> 40 <a class="navbar-brand" href="../../"><img class="d-block" id="icon" alt="ImageMagick" width="32" height="32" src="../../../images/wand.ico"/></a> 41 <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#magick-navbars" aria-controls="magick-navbars" aria-expanded="false" aria-label="Toggle navigation"> 42 <span class="navbar-toggler-icon"></span> 43 </button> 44 45 <div class="collapse navbar-collapse" id="magick-navbars"> 46 <ul class="navbar-nav me-auto mb-2 mb-md-0"> 47 <li class="nav-item"> 48 <a class="nav-link " href="../../www/index.html">Home</a> 49 </li> 50 <li class="nav-item"> 51 <a class="nav-link " href="../../www/download.html">Download</a> 52 </li> 53 <li class="nav-item"> 54 <a class="nav-link " href="../../www/command-line-tools.html">Tools</a> 55 </li> 56 <li class="nav-item"> 57 <a class="nav-link " href="../../www/command-line-processing.html">CLI</a> 58 </li> 59 <li class="nav-item"> 60 <a class="nav-link " href="../../www/develop.html">Develop</a> 61 </li> 62 <li class="nav-item"> 63 <a class="nav-link" target="_blank" href="https://github.com/ImageMagick/ImageMagick/discussions">Community</a> 64 </li> 65 <li class="nav-item"> 66 <iframe src="https://github.com/sponsors/ImageMagick/button" title="Sponsor ImageMagick" height="35" width="107" style="border: 0;"></iframe> 67 </li> 68 </ul> 69 <form class="d-flex form-inline" action="https://imagemagick.org/script/search.php"> 70 <input class="form-control me-2" type="text" name="q" placeholder="Search" aria-label="Search"> 71 <button class="btn btn-outline-success" type="submit" name="sa">Search</button> 72 </form> 73 </div> 74 </div> 75 </nav> 76 77 <div class="container"> 78 <script async="async" src="https://localhost/pagead/js/adsbygoogle.js"></script> 79 <ins class="adsbygoogle" 80 style="display:block" 81 data-ad-client="ca-pub-3129977114552745" 82 data-ad-slot="6345125851" 83 data-full-width-responsive="true" 84 data-ad-format="horizontal"></ins> 85 <script> 86 (adsbygoogle = window.adsbygoogle || []).push({}); 87 </script> 88 89 </div> 90 91 <main class="container"> 92 <div class="magick-template"> 93<div class="magick-header"> 94<p class="text-center"><a href="colorspace.html#GetImageColorspaceType">GetImageColorspaceType</a> • <a href="colorspace.html#SetImageColorspace">SetImageColorspace</a> • <a href="colorspace.html#SetImageGray">SetImageGray</a> • <a href="colorspace.html#SetImageMonochrome">SetImageMonochrome</a> • <a href="colorspace.html#TransformImageColorspace">TransformImageColorspace</a></p> 95 96<h2><a href="../../api/MagickCore/colorspace_8c.html" id="GetImageColorspaceType">GetImageColorspaceType</a></h2> 97 98<p>GetImageColorspaceType() returns the potential type of image: sRGBColorspaceType, RGBColorspaceType, GRAYColorspaceType, etc.</p> 99 100<p>To ensure the image type matches its potential, use SetImageColorspaceType():</p> 101 102<pre class="text"> 103 (void) SetImageColorspaceType(image,GetImageColorspaceType(image), 104exception); 105</pre> 106 107<p>The format of the GetImageColorspaceType method is:</p> 108 109<pre class="text"> 110ColorspaceType GetImageColorspaceType(const Image *image, 111 ExceptionInfo *exception) 112</pre> 113 114<p>A description of each parameter follows:</p> 115 116<dd> 117</dd> 118 119<dd> </dd> 120<dl class="dl-horizontal"> 121<dt>image</dt> 122<dd>the image. </dd> 123 124<dd> </dd> 125<dt>exception</dt> 126<dd>return any errors or warnings in this structure. </dd> 127 128<dd> </dd> 129</dl> 130<h2><a href="../../api/MagickCore/colorspace_8c.html" id="SetImageColorspace">SetImageColorspace</a></h2> 131 132<p>SetImageColorspace() sets the colorspace member of the Image structure.</p> 133 134<p>The format of the SetImageColorspace method is:</p> 135 136<pre class="text"> 137MagickBooleanType SetImageColorspace(Image *image, 138 const ColorspaceType colorspace,ExceptiionInfo *exception) 139</pre> 140 141<p>A description of each parameter follows:</p> 142 143<dd> 144</dd> 145 146<dd> </dd> 147<dl class="dl-horizontal"> 148<dt>image</dt> 149<dd>the image. </dd> 150 151<dd> </dd> 152<dt>colorspace</dt> 153<dd>the colorspace. </dd> 154 155<dd> </dd> 156<dt>exception</dt> 157<dd>return any errors or warnings in this structure. </dd> 158 159<dd> </dd> 160</dl> 161<h2><a href="../../api/MagickCore/colorspace_8c.html" id="SetImageGray">SetImageGray</a></h2> 162 163<p>SetImageGray() returns MagickTrue if all the pixels in the image have the same red, green, and blue intensities and changes the type of the image to bi-level or grayscale.</p> 164 165<p>The format of the SetImageGray method is:</p> 166 167<pre class="text"> 168MagickBooleanType SetImageGray(const Image *image, 169 ExceptionInfo *exception) 170</pre> 171 172<p>A description of each parameter follows:</p> 173 174<dd> 175</dd> 176 177<dd> </dd> 178<dl class="dl-horizontal"> 179<dt>image</dt> 180<dd>the image. </dd> 181 182<dd> </dd> 183<dt>exception</dt> 184<dd>return any errors or warnings in this structure. </dd> 185 186<dd> </dd> 187</dl> 188<h2><a href="../../api/MagickCore/colorspace_8c.html" id="SetImageMonochrome">SetImageMonochrome</a></h2> 189 190<p>SetImageMonochrome() returns MagickTrue if all the pixels in the image have the same red, green, and blue intensities and the intensity is either 0 or QuantumRange and changes the type of the image to bi-level.</p> 191 192<p>The format of the SetImageMonochrome method is:</p> 193 194<pre class="text"> 195MagickBooleanType SetImageMonochrome(Image *image, 196 ExceptionInfo *exception) 197</pre> 198 199<p>A description of each parameter follows:</p> 200 201<dd> 202</dd> 203 204<dd> </dd> 205<dl class="dl-horizontal"> 206<dt>image</dt> 207<dd>the image. </dd> 208 209<dd> </dd> 210<dt>exception</dt> 211<dd>return any errors or warnings in this structure. </dd> 212 213<dd> </dd> 214</dl> 215<h2><a href="../../api/MagickCore/colorspace_8c.html" id="TransformImageColorspace">TransformImageColorspace</a></h2> 216 217<p>TransformImageColorspace() transforms an image colorspace, changing the image data to reflect the new colorspace.</p> 218 219<p>The format of the TransformImageColorspace method is:</p> 220 221<pre class="text"> 222MagickBooleanType TransformImageColorspace(Image *image, 223 const ColorspaceType colorspace,ExceptionInfo *exception) 224</pre> 225 226<p>A description of each parameter follows:</p> 227 228<dd> 229</dd> 230 231<dd> </dd> 232<dl class="dl-horizontal"> 233<dt>image</dt> 234<dd>the image. </dd> 235 236<dd> </dd> 237<dt>colorspace</dt> 238<dd>the colorspace. </dd> 239 240<dd> </dd> 241<dt>exception</dt> 242<dd>return any errors or warnings in this structure. </dd> 243 244<dd> </dd> 245</dl> 246</div> 247 </div> 248 </main><!-- /.container --> 249 <footer class="magick-footer"> 250 <div class="container-fluid"> 251 <a href="../../www/security-policy.html">Security</a> • 252 <a href="../../www/news.html">News</a> 253 254 <a href="colorspace.html#"><img class="d-inline" id="wand" alt="And Now a Touch of Magick" width="16" height="16" src="../../../images/wand.ico"/></a> 255 256 <a href="../../www/links.html">Related</a> • 257 <a href="../../www/sitemap.html">Sitemap</a> 258 <br/> 259 <a href="../../www/support.html">Sponsor</a> • 260 <a href="../../www/cite.html">Cite</a> • 261 <a href="http://pgp.mit.edu/pks/lookup?op=get&search=0x89AB63D48277377A">Public Key</a> • 262 <a href="../../www/contact.html">Contact Us</a> 263 <br/> 264 <a href="https://github.com/imagemagick/imagemagick" target="_blank" rel="noopener" aria-label="GitHub"><svg xmlns="http://www.w3.org/2000/svg" class="navbar-nav-svg" viewBox="0 0 512 499.36" width="2%" height="2%" role="img" focusable="false"><title>GitHub</title><path fill="currentColor" fill-rule="evenodd" d="M256 0C114.64 0 0 114.61 0 256c0 113.09 73.34 209 175.08 242.9 12.8 2.35 17.47-5.56 17.47-12.34 0-6.08-.22-22.18-.35-43.54-71.2 15.49-86.2-34.34-86.2-34.34-11.64-29.57-28.42-37.45-28.42-37.45-23.27-15.84 1.73-15.55 1.73-15.55 25.69 1.81 39.21 26.38 39.21 26.38 22.84 39.12 59.92 27.82 74.5 21.27 2.33-16.54 8.94-27.82 16.25-34.22-56.84-6.43-116.6-28.43-116.6-126.49 0-27.95 10-50.8 26.35-68.69-2.63-6.48-11.42-32.5 2.51-67.75 0 0 21.49-6.88 70.4 26.24a242.65 242.65 0 0 1 128.18 0c48.87-33.13 70.33-26.24 70.33-26.24 14 35.25 5.18 61.27 2.55 67.75 16.41 17.9 26.31 40.75 26.31 68.69 0 98.35-59.85 120-116.88 126.32 9.19 7.9 17.38 23.53 17.38 47.41 0 34.22-.31 61.83-.31 70.23 0 6.85 4.61 14.81 17.6 12.31C438.72 464.97 512 369.08 512 256.02 512 114.62 397.37 0 256 0z"/></svg></a> • 265 <a href="https://twitter.com/imagemagick" target="_blank" rel="noopener" aria-label="Twitter"><svg xmlns="http://www.w3.org/2000/svg" class="navbar-nav-svg" viewBox="0 0 512 416.32" width="2%" height="2%" role="img" focusable="false"><title>Twitter</title><path fill="currentColor" d="M160.83 416.32c193.2 0 298.92-160.22 298.92-298.92 0-4.51 0-9-.2-13.52A214 214 0 0 0 512 49.38a212.93 212.93 0 0 1-60.44 16.6 105.7 105.7 0 0 0 46.3-58.19 209 209 0 0 1-66.79 25.37 105.09 105.09 0 0 0-181.73 71.91 116.12 116.12 0 0 0 2.66 24c-87.28-4.3-164.73-46.3-216.56-109.82A105.48 105.48 0 0 0 68 159.6a106.27 106.27 0 0 1-47.53-13.11v1.43a105.28 105.28 0 0 0 84.21 103.06 105.67 105.67 0 0 1-47.33 1.84 105.06 105.06 0 0 0 98.14 72.94A210.72 210.72 0 0 1 25 370.84a202.17 202.17 0 0 1-25-1.43 298.85 298.85 0 0 0 160.83 46.92"/></svg></a> 266 <br/> 267 <small>© 1999-2021 ImageMagick Studio LLC</small> 268 </div> 269 </footer> 270 271 <!-- Javascript assets --> 272 <script src="../../assets/magick.js" ></script> 273 </body> 274</html> 275