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158 <p class="navigation-index">[<a href="#AverageImages">AverageImages</a> • <a href="#GetImageChannelMean">GetImageChannelMean</a> • <a href="#GetImageChannelKurtosis">GetImageChannelKurtosis</a> • <a href="#GetImageChannelRange">GetImageChannelRange</a> • <a href="#GetImageChannelStatistics">GetImageChannelStatistics</a> • <a href="#MaximumImages">MaximumImages</a> • <a href="#MinimumImages">MinimumImages</a>]</p>
160 <h2><a href="http://www.imagemagick.org/api/MagickCore/statistic
161 _8c.html" target="source" name="AverageImages">AverageImages</a></h2>
162 <div class="doc-section">
164 <p>AverageImages() takes a set of images and averages them together. Each image in the set must have the same width and height. AverageImages() returns a single image with each corresponding pixel component of each image averaged. On failure, a NULL image is returned and exception describes the reason for the failure.</p></ol>
166 <p>The format of the AverageImages method is:</p>
169 Image *AverageImages(Image *images,ExceptionInfo *exception)
172 <p>A description of each parameter follows:</p></ol>
175 <ol><p>the image sequence.</p></ol>
178 <ol><p>return any errors or warnings in this structure.</p></ol>
181 <h2><a href="http://www.imagemagick.org/api/MagickCore/statistic
182 _8c.html" target="source" name="GetImageChannelMean">GetImageChannelMean</a></h2>
183 <div class="doc-section">
185 <p>GetImageChannelMean() returns the mean and standard deviation of one or more image channels.</p></ol>
187 <p>The format of the GetImageChannelMean method is:</p>
190 MagickBooleanType GetImageChannelMean(const Image *image,
191 const ChannelType channel,double *mean,double *standard_deviation,
192 ExceptionInfo *exception)
195 <p>A description of each parameter follows:</p></ol>
198 <ol><p>the image.</p></ol>
201 <ol><p>the channel.</p></ol>
204 <ol><p>the average value in the channel.</p></ol>
206 <h5>standard_deviation</h5>
207 <ol><p>the standard deviation of the channel.</p></ol>
210 <ol><p>return any errors or warnings in this structure.</p></ol>
213 <h2><a href="http://www.imagemagick.org/api/MagickCore/statistic
214 _8c.html" target="source" name="GetImageChannelKurtosis">GetImageChannelKurtosis</a></h2>
215 <div class="doc-section">
217 <p>GetImageChannelKurtosis() returns the kurtosis and skewness of one or more image channels.</p></ol>
219 <p>The format of the GetImageChannelKurtosis method is:</p>
222 MagickBooleanType GetImageChannelKurtosis(const Image *image,
223 const ChannelType channel,double *kurtosis,double *skewness,
224 ExceptionInfo *exception)
227 <p>A description of each parameter follows:</p></ol>
230 <ol><p>the image.</p></ol>
233 <ol><p>the channel.</p></ol>
236 <ol><p>the kurtosis of the channel.</p></ol>
239 <ol><p>the skewness of the channel.</p></ol>
242 <ol><p>return any errors or warnings in this structure.</p></ol>
245 <h2><a href="http://www.imagemagick.org/api/MagickCore/statistic
246 _8c.html" target="source" name="GetImageChannelRange">GetImageChannelRange</a></h2>
247 <div class="doc-section">
249 <p>GetImageChannelRange() returns the range of one or more image channels.</p></ol>
251 <p>The format of the GetImageChannelRange method is:</p>
254 MagickBooleanType GetImageChannelRange(const Image *image,
255 const ChannelType channel,double *minima,double *maxima,
256 ExceptionInfo *exception)
259 <p>A description of each parameter follows:</p></ol>
262 <ol><p>the image.</p></ol>
265 <ol><p>the channel.</p></ol>
268 <ol><p>the minimum value in the channel.</p></ol>
271 <ol><p>the maximum value in the channel.</p></ol>
274 <ol><p>return any errors or warnings in this structure.</p></ol>
277 <h2><a href="http://www.imagemagick.org/api/MagickCore/statistic
278 _8c.html" target="source" name="GetImageChannelStatistics">GetImageChannelStatistics</a></h2>
279 <div class="doc-section">
281 <p>GetImageChannelStatistics() returns statistics for each channel in the image. The statistics include the channel depth, its minima, maxima, mean, standard deviation, kurtosis and skewness. You can access the red channel mean, for example, like this:</p>
284 channel_statistics=GetImageChannelStatistics(image,excepton);
285 red_mean=channel_statistics[RedChannel].mean;
288 <p>Use MagickRelinquishMemory() to free the statistics buffer.</p></ol>
290 <p>The format of the GetImageChannelStatistics method is:</p>
293 ChannelStatistics *GetImageChannelStatistics(const Image *image,
294 ExceptionInfo *exception)
297 <p>A description of each parameter follows:</p></ol>
300 <ol><p>the image.</p></ol>
303 <ol><p>return any errors or warnings in this structure.</p></ol>
306 <h2><a href="http://www.imagemagick.org/api/MagickCore/statistic
307 _8c.html" target="source" name="MaximumImages">MaximumImages</a></h2>
308 <div class="doc-section">
310 <p>MaximumImages() returns the maximum intensity of an image sequence.</p></ol>
312 <p>The format of the MaxImages method is:</p>
315 Image *MaximumImages(Image *images,ExceptionInfo *exception)
318 <p>A description of each parameter follows:</p></ol>
321 <ol><p>the image sequence.</p></ol>
324 <ol><p>return any errors or warnings in this structure.</p></ol>
327 <h2><a href="http://www.imagemagick.org/api/MagickCore/statistic
328 _8c.html" target="source" name="MinimumImages">MinimumImages</a></h2>
329 <div class="doc-section">
331 <p>MinimumImages() returns the minimum intensity of an image sequence.</p></ol>
333 <p>The format of the MinimumImages method is:</p>
336 Image *MinimumImages(Image *images,ExceptionInfo *exception)
339 <p>A description of each parameter follows:</p></ol>
342 <ol><p>the image sequence.</p></ol>
345 <ol><p>return any errors or warnings in this structure.</p></ol>
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