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Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]10 <title>MagickCore, C API: Compare an Image to a Reconstructed Image @ ImageMagick</title>
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Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]84<p class="text-center"><a href="compare.html#CompareImagesCommand">CompareImagesCommand</a></p>
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]85
Cristy9e9b2ab2018-12-27 10:35:17 -0500[diff] [blame]86<h2><a href="../../api/MagickWand/compare_8c.html" id="CompareImagesCommand">CompareImagesCommand</a></h2>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]87
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]88<p>CompareImagesCommand() compares two images and returns the difference between them as a distortion metric and as a new image visually annotating their differences.</p>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]89
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]90<p>The format of the CompareImagesCommand method is:</p>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]91
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]92<pre class="text">
93MagickBooleanType CompareImagesCommand(ImageInfo *image_info,int argc,
94 char **argv,char **metadata,ExceptionInfo *exception)
95</pre>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]96
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]97<p>A description of each parameter follows:</p>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]98
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]99<dd>
100</dd>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]101
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]102<dd> </dd>
103<dl class="dl-horizontal">
104<dt>image_info</dt>
105<dd>the image info. </dd>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]106
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]107<dd> </dd>
108<dt>argc</dt>
109<dd>the number of elements in the argument vector. </dd>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]110
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]111<dd> </dd>
112<dt>argv</dt>
113<dd>A text array containing the command line arguments. </dd>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]114
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]115<dd> </dd>
116<dt>metadata</dt>
117<dd>any metadata is returned here. </dd>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]118
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]119<dd> </dd>
120<dt>exception</dt>
121<dd>return any errors or warnings in this structure. </dd>
cristycecc9492015-06-09 16:53:50 +0000[diff] [blame]122
Cristy8e1d74e2018-02-19 07:49:19 -0500[diff] [blame]123<dd> </dd>
124</dl>
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]125</div>
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