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<title>MagickCore: threshold.c File Reference</title>
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<h1>threshold.c File Reference</h1>
<p>
<code>#include "<a class="el" href="studio_8h-source.html">magick/studio.h</a>"</code><br>
<code>#include "<a class="el" href="property_8h-source.html">magick/property.h</a>"</code><br>
<code>#include "<a class="el" href="blob_8h-source.html">magick/blob.h</a>"</code><br>
<code>#include "<a class="el" href="cache-view_8h-source.html">magick/cache-view.h</a>"</code><br>
<code>#include "<a class="el" href="color_8h-source.html">magick/color.h</a>"</code><br>
<code>#include "<a class="el" href="color-private_8h-source.html">magick/color-private.h</a>"</code><br>
<code>#include "<a class="el" href="colorspace_8h-source.html">magick/colorspace.h</a>"</code><br>
<code>#include "<a class="el" href="configure_8h-source.html">magick/configure.h</a>"</code><br>
<code>#include "<a class="el" href="constitute_8h-source.html">magick/constitute.h</a>"</code><br>
<code>#include "<a class="el" href="decorate_8h-source.html">magick/decorate.h</a>"</code><br>
<code>#include "<a class="el" href="draw_8h-source.html">magick/draw.h</a>"</code><br>
<code>#include "<a class="el" href="enhance_8h-source.html">magick/enhance.h</a>"</code><br>
<code>#include "<a class="el" href="exception_8h-source.html">magick/exception.h</a>"</code><br>
<code>#include "<a class="el" href="exception-private_8h-source.html">magick/exception-private.h</a>"</code><br>
<code>#include "<a class="el" href="effect_8h-source.html">magick/effect.h</a>"</code><br>
<code>#include "<a class="el" href="fx_8h-source.html">magick/fx.h</a>"</code><br>
<code>#include "<a class="el" href="gem_8h-source.html">magick/gem.h</a>"</code><br>
<code>#include "<a class="el" href="geometry_8h-source.html">magick/geometry.h</a>"</code><br>
<code>#include "<a class="el" href="image-private_8h-source.html">magick/image-private.h</a>"</code><br>
<code>#include "<a class="el" href="list_8h-source.html">magick/list.h</a>"</code><br>
<code>#include "<a class="el" href="log_8h-source.html">magick/log.h</a>"</code><br>
<code>#include "<a class="el" href="memory___8h-source.html">magick/memory_.h</a>"</code><br>
<code>#include "<a class="el" href="monitor_8h-source.html">magick/monitor.h</a>"</code><br>
<code>#include "<a class="el" href="montage_8h-source.html">magick/montage.h</a>"</code><br>
<code>#include "<a class="el" href="pixel-private_8h-source.html">magick/pixel-private.h</a>"</code><br>
<code>#include "<a class="el" href="quantize_8h-source.html">magick/quantize.h</a>"</code><br>
<code>#include "<a class="el" href="quantum_8h-source.html">magick/quantum.h</a>"</code><br>
<code>#include "<a class="el" href="random___8h-source.html">magick/random_.h</a>"</code><br>
<code>#include "<a class="el" href="resize_8h-source.html">magick/resize.h</a>"</code><br>
<code>#include "<a class="el" href="resource___8h-source.html">magick/resource_.h</a>"</code><br>
<code>#include "<a class="el" href="segment_8h-source.html">magick/segment.h</a>"</code><br>
<code>#include "<a class="el" href="shear_8h-source.html">magick/shear.h</a>"</code><br>
<code>#include "<a class="el" href="signature_8h-source.html">magick/signature.h</a>"</code><br>
<code>#include "<a class="el" href="string___8h-source.html">magick/string_.h</a>"</code><br>
<code>#include "<a class="el" href="transform_8h-source.html">magick/transform.h</a>"</code><br>
<code>#include "<a class="el" href="threshold_8h-source.html">magick/threshold.h</a>"</code><br>
<code>#include "<a class="el" href="option_8h-source.html">magick/option.h</a>"</code><br>
<code>#include "<a class="el" href="xml-tree_8h-source.html">magick/xml-tree.h</a>"</code><br>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Data Structures</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="struct__ThresholdMap.html">_ThresholdMap</a></td></tr>
<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#44557bfb2038eb10485109c33d4503af">ThresholdsFilename</a> "thresholds.xml"</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#83888b47c5fbb2a44ca8d64e9258e1cf">ThresholdImageTag</a> "Threshold/<a class="el" href="struct__Image.html">Image</a>"</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#83888b47c5fbb2a44ca8d64e9258e1cf">ThresholdImageTag</a> "Threshold/<a class="el" href="struct__Image.html">Image</a>"</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#83888b47c5fbb2a44ca8d64e9258e1cf">ThresholdImageTag</a> "Threshold/<a class="el" href="struct__Image.html">Image</a>"</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#46ca50bcadc800ef4f1ba2d3290067d8">DitherImageTag</a> "Dither/<a class="el" href="struct__Image.html">Image</a>"</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#83888b47c5fbb2a44ca8d64e9258e1cf">ThresholdImageTag</a> "Threshold/<a class="el" href="struct__Image.html">Image</a>"</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#83888b47c5fbb2a44ca8d64e9258e1cf">ThresholdImageTag</a> "Threshold/<a class="el" href="struct__Image.html">Image</a>"</td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="struct__Image.html">Image</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#5d96ec0d64d938404138f5debe6d333f">AdaptiveThresholdImage</a> (const <a class="el" href="struct__Image.html">Image</a> *image, const unsigned long width, const unsigned long height, const long offset, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#fab7d7f1a583f86357c6b6cf784bd3c9">BilevelImage</a> (<a class="el" href="struct__Image.html">Image</a> *image, const double threshold)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#36957a69398faef772961be9fb7a5921">BilevelImageChannel</a> (<a class="el" href="struct__Image.html">Image</a> *image, const <a class="el" href="magick-type_8h.html#19a96edeeb9d37072c4ce9f862d19ba8">ChannelType</a> channel, const double threshold)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#55d639e04fb7d25a0a085aa0b712a50f">BlackThresholdImage</a> (<a class="el" href="struct__Image.html">Image</a> *image, const char *threshold)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="struct__ThresholdMap.html">ThresholdMap</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#34f4d6cfd0cdefdb7e200502b96ad5c1">DestroyThresholdMap</a> (<a class="el" href="struct__ThresholdMap.html">ThresholdMap</a> *map)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="struct__ThresholdMap.html">ThresholdMap</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#0a9bd741b78b86fec436b9d9c39294d9">GetThresholdMapFile</a> (const char *xml, const char *filename, const char *map_id, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="struct__ThresholdMap.html">ThresholdMap</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#40012a5934ff541569af3edd5ea349b2">GetThresholdMap</a> (const char *map_id, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#dfb51de61ab4528d9fa8fc2a5d0c2519">ListThresholdMapFile</a> (FILE *file, const char *xml, const char *filename, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#285976610e948f7edff07a4b005c9889">ListThresholdMaps</a> (FILE *file, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#26f14f481693b6817553332ba7274ee9">OrderedDitherImage</a> (<a class="el" href="struct__Image.html">Image</a> *image)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#6a63fd4d262ee86d35f151618e9fd1f5">OrderedDitherImageChannel</a> (<a class="el" href="struct__Image.html">Image</a> *image, const <a class="el" href="magick-type_8h.html#19a96edeeb9d37072c4ce9f862d19ba8">ChannelType</a> channel, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#2adba1b03e2845440f4e0a1d6fdd7d67">OrderedPosterizeImage</a> (<a class="el" href="struct__Image.html">Image</a> *image, const char *threshold_map, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#8eb0f3d268a08e187b35d2a7d2ed12b3">OrderedPosterizeImageChannel</a> (<a class="el" href="struct__Image.html">Image</a> *image, const <a class="el" href="magick-type_8h.html#19a96edeeb9d37072c4ce9f862d19ba8">ChannelType</a> channel, const char *threshold_map, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#c9b45ab1e7b268bbe3f9b46a4caaf802">RandomThresholdImage</a> (<a class="el" href="struct__Image.html">Image</a> *image, const char *thresholds, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#5e40359112a9a5fcbe2e093d3dbc8909">RandomThresholdImageChannel</a> (<a class="el" href="struct__Image.html">Image</a> *image, const <a class="el" href="magick-type_8h.html#19a96edeeb9d37072c4ce9f862d19ba8">ChannelType</a> channel, const char *thresholds, <a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> *exception)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="threshold_8c.html#943a719f057899954e55e2db2ff3833e">WhiteThresholdImage</a> (<a class="el" href="struct__Image.html">Image</a> *image, const char *threshold)</td></tr>
</table>
<hr><h2>Define Documentation</h2>
<a class="anchor" name="46ca50bcadc800ef4f1ba2d3290067d8"></a><!-- doxytag: member="threshold.c::DitherImageTag" ref="46ca50bcadc800ef4f1ba2d3290067d8" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">#define DitherImageTag "Dither/<a class="el" href="struct__Image.html">Image</a>" </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<a class="anchor" name="83888b47c5fbb2a44ca8d64e9258e1cf"></a><!-- doxytag: member="threshold.c::ThresholdImageTag" ref="83888b47c5fbb2a44ca8d64e9258e1cf" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">#define ThresholdImageTag "Threshold/<a class="el" href="struct__Image.html">Image</a>" </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<a class="anchor" name="83888b47c5fbb2a44ca8d64e9258e1cf"></a><!-- doxytag: member="threshold.c::ThresholdImageTag" ref="83888b47c5fbb2a44ca8d64e9258e1cf" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">#define ThresholdImageTag "Threshold/<a class="el" href="struct__Image.html">Image</a>" </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<a class="anchor" name="83888b47c5fbb2a44ca8d64e9258e1cf"></a><!-- doxytag: member="threshold.c::ThresholdImageTag" ref="83888b47c5fbb2a44ca8d64e9258e1cf" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">#define ThresholdImageTag "Threshold/<a class="el" href="struct__Image.html">Image</a>" </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<a class="anchor" name="83888b47c5fbb2a44ca8d64e9258e1cf"></a><!-- doxytag: member="threshold.c::ThresholdImageTag" ref="83888b47c5fbb2a44ca8d64e9258e1cf" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">#define ThresholdImageTag "Threshold/<a class="el" href="struct__Image.html">Image</a>" </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<a class="anchor" name="83888b47c5fbb2a44ca8d64e9258e1cf"></a><!-- doxytag: member="threshold.c::ThresholdImageTag" ref="83888b47c5fbb2a44ca8d64e9258e1cf" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">#define ThresholdImageTag "Threshold/<a class="el" href="struct__Image.html">Image</a>" </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<a class="anchor" name="44557bfb2038eb10485109c33d4503af"></a><!-- doxytag: member="threshold.c::ThresholdsFilename" ref="44557bfb2038eb10485109c33d4503af" args="" -->
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<td class="memname">#define ThresholdsFilename "thresholds.xml" </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<hr><h2>Function Documentation</h2>
<a class="anchor" name="5d96ec0d64d938404138f5debe6d333f"></a><!-- doxytag: member="threshold.c::AdaptiveThresholdImage" ref="5d96ec0d64d938404138f5debe6d333f" args="(const Image *image, const unsigned long width, const unsigned long height, const long offset, ExceptionInfo *exception)" -->
<div class="memitem">
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<td class="memname">MagickExport <a class="el" href="struct__Image.html">Image</a>* AdaptiveThresholdImage </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="struct__Image.html">Image</a> * </td>
<td class="paramname"> <em>image</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned long </td>
<td class="paramname"> <em>width</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const unsigned long </td>
<td class="paramname"> <em>height</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const long </td>
<td class="paramname"> <em>offset</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="struct__ExceptionInfo.html">ExceptionInfo</a> * </td>
<td class="paramname"> <em>exception</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<a class="anchor" name="fab7d7f1a583f86357c6b6cf784bd3c9"></a><!-- doxytag: member="threshold.c::BilevelImage" ref="fab7d7f1a583f86357c6b6cf784bd3c9" args="(Image *image, const double threshold)" -->
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<td class="memname">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> BilevelImage </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct__Image.html">Image</a> * </td>
<td class="paramname"> <em>image</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const double </td>
<td class="paramname"> <em>threshold</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
</div>
</div><p>
<a class="anchor" name="36957a69398faef772961be9fb7a5921"></a><!-- doxytag: member="threshold.c::BilevelImageChannel" ref="36957a69398faef772961be9fb7a5921" args="(Image *image, const ChannelType channel, const double threshold)" -->
<div class="memitem">
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<table class="memname">
<tr>
<td class="memname">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> BilevelImageChannel </td>
<td>(</td>
<td class="paramtype"><a class="el" href="struct__Image.html">Image</a> * </td>
<td class="paramname"> <em>image</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="magick-type_8h.html#19a96edeeb9d37072c4ce9f862d19ba8">ChannelType</a> </td>
<td class="paramname"> <em>channel</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const double </td>
<td class="paramname"> <em>threshold</em></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
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<td class="memname">MagickExport <a class="el" href="magick-type_8h.html#c740cbce6e8928a679ae3767b49428dd">MagickBooleanType</a> BlackThresholdImage </td>
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<td class="memname">MagickExport <a class="el" href="struct__ThresholdMap.html">ThresholdMap</a>* DestroyThresholdMap </td>
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<td class="memname">MagickExport <a class="el" href="struct__ThresholdMap.html">ThresholdMap</a>* GetThresholdMap </td>
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<hr size="1"><address style="text-align: right;"><small>Generated on Sat Jan 26 14:50:30 2008 for MagickCore by
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