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12 <title>ImageMagick: MagickCore, C API for ImageMagick: Set Text Attributes</title>
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155 <p class="navigation-index">[<a href="#GetImageChannelDepth">GetImageChannelDepth</a> • <a href="#GetImageQuantumDepth">GetImageQuantumDepth</a> • <a href="#GetImageType">GetImageType</a> • <a href="#IsGrayImage">IsGrayImage</a> • <a href="#IsMonochromeImage">IsMonochromeImage</a> • <a href="#IsOpaqueImage">IsOpaqueImage</a> • <a href="#SetImageChannelDepth">SetImageChannelDepth</a>]</p>
157 <h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
158 _8c.html" target="source" name="GetImageChannelDepth">GetImageChannelDepth</a></h2>
159 <div class="doc-section">
161 <p>GetImageChannelDepth() returns the depth of a particular image channel.</p></ol>
163 <p>The format of the GetImageChannelDepth method is:</p>
166 unsigned long GetImageDepth(const Image *image,ExceptionInfo *exception)
167 unsigned long GetImageChannelDepth(const Image *image,
168 const ChannelType channel,ExceptionInfo *exception)
171 <p>A description of each parameter follows:</p></ol>
174 <ol><p>the image.</p></ol>
177 <ol><p>the channel.</p></ol>
180 <ol><p>return any errors or warnings in this structure.</p></ol>
183 <h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
184 _8c.html" target="source" name="GetImageQuantumDepth">GetImageQuantumDepth</a></h2>
185 <div class="doc-section">
187 <p>GetImageQuantumDepth() returns the depth of the image rounded to a legal quantum depth: 8, 16, or 32.</p></ol>
189 <p>The format of the GetImageQuantumDepth method is:</p>
192 unsigned long GetImageQuantumDepth(const Image *image,
193 const MagickBooleanType constrain)
196 <p>A description of each parameter follows:</p></ol>
199 <ol><p>the image.</p></ol>
202 <ol><p>A value other than MagickFalse, constrains the depth to a maximum of MAGICKCORE_QUANTUM_DEPTH.</p></ol>
205 <h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
206 _8c.html" target="source" name="GetImageType">GetImageType</a></h2>
207 <div class="doc-section">
209 <p>GetImageType() returns the potential type of image:</p></ol>
211 <p>Bilevel Grayscale GrayscaleMatte Palette PaletteMatte TrueColor TrueColorMatte ColorSeparation ColorSeparationMatte</p></ol>
213 <p>To ensure the image type matches its potential, use SetImageType():</p>
216 (void) SetImageType(image,GetImageType(image));
219 <p>The format of the GetImageType method is:</p>
222 ImageType GetImageType(const Image *image,ExceptionInfo *exception)
225 <p>A description of each parameter follows:</p></ol>
228 <ol><p>the image.</p></ol>
231 <ol><p>return any errors or warnings in this structure.</p></ol>
234 <h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
235 _8c.html" target="source" name="IsGrayImage">IsGrayImage</a></h2>
236 <div class="doc-section">
238 <p>IsGrayImage() returns MagickTrue if all the pixels in the image have the same red, green, and blue intensities.</p></ol>
240 <p>The format of the IsGrayImage method is:</p>
243 MagickBooleanType IsGrayImage(const Image *image,
244 ExceptionInfo *exception)
247 <p>A description of each parameter follows:</p></ol>
250 <ol><p>the image.</p></ol>
253 <ol><p>return any errors or warnings in this structure.</p></ol>
256 <h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
257 _8c.html" target="source" name="IsMonochromeImage">IsMonochromeImage</a></h2>
258 <div class="doc-section">
260 <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></ol>
262 <p>The format of the IsMonochromeImage method is:</p>
265 MagickBooleanType IsMonochromeImage(const Image *image,
266 ExceptionInfo *exception)
269 <p>A description of each parameter follows:</p></ol>
272 <ol><p>the image.</p></ol>
275 <ol><p>return any errors or warnings in this structure.</p></ol>
278 <h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
279 _8c.html" target="source" name="IsOpaqueImage">IsOpaqueImage</a></h2>
280 <div class="doc-section">
282 <p>IsOpaqueImage() returns MagickTrue if none of the pixels in the image have an opacity value other than opaque (0).</p></ol>
284 <p>The format of the IsOpaqueImage method is:</p>
287 MagickBooleanType IsOpaqueImage(const Image *image,
288 ExceptionInfo *exception)
291 <p>A description of each parameter follows:</p></ol>
294 <ol><p>the image.</p></ol>
297 <ol><p>return any errors or warnings in this structure.</p></ol>
300 <h2><a href="http://www.imagemagick.org/api/MagickCore/attribute
301 _8c.html" target="source" name="SetImageChannelDepth">SetImageChannelDepth</a></h2>
302 <div class="doc-section">
304 <p>SetImageChannelDepth() sets the depth of the image.</p></ol>
306 <p>The format of the SetImageChannelDepth method is:</p>
309 MagickBooleanType SetImageDepth(Image *image,const unsigned long depth)
310 MagickBooleanType SetImageChannelDepth(Image *image,
311 const ChannelType channel,const unsigned long depth)
314 <p>A description of each parameter follows:</p></ol>
317 <ol><p>the image.</p></ol>
320 <ol><p>the channel.</p></ol>
323 <ol><p>the image depth.</p></ol>
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