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188
cristy307ba182010-12-25 01:00:34 +0000[diff] [blame]189<h1>Module attribute
190 Methods</h1>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]191<p class="navigation-index">[<a href="#GetImageChannelDepth">GetImageChannelDepth</a> &bull; <a href="#GetImageQuantumDepth">GetImageQuantumDepth</a> &bull; <a href="#GetImageType">GetImageType</a> &bull; <a href="#IsGrayImage">IsGrayImage</a> &bull; <a href="#IsMonochromeImage">IsMonochromeImage</a> &bull; <a href="#IsOpaqueImage">IsOpaqueImage</a> &bull; <a href="#SetImageChannelDepth">SetImageChannelDepth</a>]</p>
192
cristy70b59b62011-02-07 19:09:57 +0000[diff] [blame^]193<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]194_8c.html" id="GetImageChannelDepth">GetImageChannelDepth</a></h2>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]195<div class="doc-section">
196
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]197<p>GetImageChannelDepth() returns the depth of a particular image channel.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]198
199<p>The format of the GetImageChannelDepth method is:</p>
200
201<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]202 size_t GetImageDepth(const Image *image,ExceptionInfo *exception)
203 size_t GetImageChannelDepth(const Image *image,
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]204 const ChannelType channel,ExceptionInfo *exception)
205</pre>
206
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]207<p>A description of each parameter follows:</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]208
209<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]210<p>the image.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]211
212<h5>channel</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]213<p>the channel.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]214
215<h5>exception</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]216<p>return any errors or warnings in this structure.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]217
218 </div>
cristy70b59b62011-02-07 19:09:57 +0000[diff] [blame^]219<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]220_8c.html" id="GetImageQuantumDepth">GetImageQuantumDepth</a></h2>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]221<div class="doc-section">
222
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]223<p>GetImageQuantumDepth() returns the depth of the image rounded to a legal quantum depth: 8, 16, or 32.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]224
225<p>The format of the GetImageQuantumDepth method is:</p>
226
227<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]228 size_t GetImageQuantumDepth(const Image *image,
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]229 const MagickBooleanType constrain)
230</pre>
231
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]232<p>A description of each parameter follows:</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]233
234<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]235<p>the image.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]236
237<h5>constrain</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]238<p>A value other than MagickFalse, constrains the depth to a maximum of MAGICKCORE_QUANTUM_DEPTH.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]239
240 </div>
cristy70b59b62011-02-07 19:09:57 +0000[diff] [blame^]241<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]242_8c.html" id="GetImageType">GetImageType</a></h2>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]243<div class="doc-section">
244
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]245<p>GetImageType() returns the potential type of image:</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]246
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]247<p>Bilevel Grayscale GrayscaleMatte Palette PaletteMatte TrueColor TrueColorMatte ColorSeparation ColorSeparationMatte</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]248
249<p>To ensure the image type matches its potential, use SetImageType():</p>
250
251<pre class="text">
252 (void) SetImageType(image,GetImageType(image));
253</pre>
254
255<p>The format of the GetImageType method is:</p>
256
257<pre class="code">
258 ImageType GetImageType(const Image *image,ExceptionInfo *exception)
259</pre>
260
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]261<p>A description of each parameter follows:</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]262
263<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]264<p>the image.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]265
266<h5>exception</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]267<p>return any errors or warnings in this structure.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]268
269 </div>
cristy70b59b62011-02-07 19:09:57 +0000[diff] [blame^]270<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]271_8c.html" id="IsGrayImage">IsGrayImage</a></h2>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]272<div class="doc-section">
273
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]274<p>IsGrayImage() returns MagickTrue if all the pixels in the image have the same red, green, and blue intensities.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]275
276<p>The format of the IsGrayImage method is:</p>
277
278<pre class="code">
279 MagickBooleanType IsGrayImage(const Image *image,
280 ExceptionInfo *exception)
281</pre>
282
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]283<p>A description of each parameter follows:</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]284
285<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]286<p>the image.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]287
288<h5>exception</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]289<p>return any errors or warnings in this structure.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]290
291 </div>
cristy70b59b62011-02-07 19:09:57 +0000[diff] [blame^]292<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]293_8c.html" id="IsMonochromeImage">IsMonochromeImage</a></h2>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]294<div class="doc-section">
295
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]296<p>IsMonochromeImage() 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.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]297
298<p>The format of the IsMonochromeImage method is:</p>
299
300<pre class="code">
301 MagickBooleanType IsMonochromeImage(const Image *image,
302 ExceptionInfo *exception)
303</pre>
304
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]305<p>A description of each parameter follows:</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]306
307<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]308<p>the image.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]309
310<h5>exception</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]311<p>return any errors or warnings in this structure.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]312
313 </div>
cristy70b59b62011-02-07 19:09:57 +0000[diff] [blame^]314<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]315_8c.html" id="IsOpaqueImage">IsOpaqueImage</a></h2>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]316<div class="doc-section">
317
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]318<p>IsOpaqueImage() returns MagickTrue if none of the pixels in the image have an opacity value other than opaque (0).</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]319
320<p>The format of the IsOpaqueImage method is:</p>
321
322<pre class="code">
323 MagickBooleanType IsOpaqueImage(const Image *image,
324 ExceptionInfo *exception)
325</pre>
326
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]327<p>A description of each parameter follows:</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]328
329<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]330<p>the image.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]331
332<h5>exception</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]333<p>return any errors or warnings in this structure.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]334
335 </div>
cristy70b59b62011-02-07 19:09:57 +0000[diff] [blame^]336<h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]337_8c.html" id="SetImageChannelDepth">SetImageChannelDepth</a></h2>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]338<div class="doc-section">
339
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]340<p>SetImageChannelDepth() sets the depth of the image.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]341
342<p>The format of the SetImageChannelDepth method is:</p>
343
344<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]345 MagickBooleanType SetImageDepth(Image *image,const size_t depth)
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]346 MagickBooleanType SetImageChannelDepth(Image *image,
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]347 const ChannelType channel,const size_t depth)
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]348</pre>
349
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]350<p>A description of each parameter follows:</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]351
352<h5>image</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]353<p>the image.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]354
355<h5>channel</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]356<p>the channel.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]357
358<h5>depth</h5>
cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]359<p>the image depth.</p>
cristy83543962009-10-16 19:04:28 +0000[diff] [blame]360
361 </div>
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame]362
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