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gerrit-public.fairphone.software / platform / external / ImageMagick / 0f7728a8e46a92cb751365cc4795196674e2b157 / . / www / api / paint.html
blob: 6bcc65473037e5393da969d10ec3bc9a1cf739ae [file] [log] [blame]
cristydcca3fa2010-12-29 21:50:07 +0000[diff] [blame]1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
2 "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
cristy2bd2a982011-02-15 00:52:58 +0000[diff] [blame]3<html version="-//W3C//DTD XHTML 1.1//EN"
4 xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"
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6 xsi:schemaLocation="http://www.w3.org/1999/xhtml
7 http://www.w3.org/MarkUp/SCHEMA/xhtml11.xsd">
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame]8<head>
cristy3c98a4f2010-08-13 20:09:41 +0000[diff] [blame]9 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
10 <meta name="verify-v1" content="g222frIIxcQTrvDR3NBRUSKP3AnMNoqxOkIniCEkV7U="/>
cristyffb69ed2010-12-25 00:06:48 +0000[diff] [blame]11 <title>ImageMagick: MagickCore, C API for ImageMagick: Paint on an Image</title>
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cristye6e84152011-06-06 14:16:49 +0000[diff] [blame]16 <meta name="Description" content="Use ImageMagick to convert, edit, or compose bitmap images in a variety of formats. In addition resize, rotate, shear, distort and transform images automagically."/>
cristy3c98a4f2010-08-13 20:09:41 +0000[diff] [blame]17 <meta name="Application-url" content="http://www.imagemagick.org"/>
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cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]20 <meta name="Rating" content="GENERAL"/>
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cristy7a40ba82011-01-08 20:31:18 +0000[diff] [blame]32 <link rel="stylesheet" href="http://www.google.com/cse/style/look/default.css" type="text/css" />
cristy29c5c992011-06-25 13:58:49 +0000[diff] [blame]33 <link rel="stylesheet" type="text/css" href="../fancybox/jquery.fancybox-1.3.4.css" media="screen" />
cristy3c98a4f2010-08-13 20:09:41 +0000[diff] [blame]34 <style type="text/css" media="all">
35 @import url("../../www/magick.css");
36 </style>
cristy29c5c992011-06-25 13:58:49 +0000[diff] [blame]37 <script type="text/javascript" src="https://apis.google.com/js/plusone.js"></script>
cristydcca3fa2010-12-29 21:50:07 +0000[diff] [blame]38 <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js"></script>
cristy361f4662010-12-31 23:02:52 +0000[diff] [blame]39 <script type="text/javascript" src="../fancybox/jquery.fancybox-1.3.4.pack.js"></script>
cristy361f4662010-12-31 23:02:52 +0000[diff] [blame]40 <script type="text/javascript">
41 $(document).ready(function() {
42 $("a[href$=.jpg],a[href$=.png],a[href$=.gif]").fancybox({
43 'transitionIn' : 'elastic',
44 'transitionOut' : 'elastic',
45 'overlayShow' : false,
46 'opacity' : true
47 });
48 });
49 </script>
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame]50</head>
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211
212<div class="main">
213
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]214<h1>Module paint Methods</h1>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]215<p class="navigation-index">[<a href="#FloodfillPaintImage">FloodfillPaintImage</a> &bull; <a href="#OilPaintImage">OilPaintImage</a> &bull; <a href="#OpaquePaintImage">OpaquePaintImage</a> &bull; <a href="#TransparentPaintImage">TransparentPaintImage</a> &bull; <a href="#TransparentPaintImageChroma">TransparentPaintImageChroma</a>]</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]216
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]217<h2><a href="http://www.imagemagick.org/api/MagickCore/paint_8c.html" id="FloodfillPaintImage">FloodfillPaintImage</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]218<div class="doc-section">
219
220<p>FloodfillPaintImage() changes the color value of any pixel that matches target and is an immediate neighbor. If the method FillToBorderMethod is specified, the color value is changed for any neighbor pixel that does not match the bordercolor member of image.</p>
221
222<p>By default target must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. The fuzz member of image defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color for the purposes of the floodfill.</p>
223
224<p>The format of the FloodfillPaintImage method is:</p>
225
226<pre class="code">
227 MagickBooleanType FloodfillPaintImage(Image *image,
cristy0f7728a2011-07-08 16:51:28 +0000[diff] [blame^]228 const DrawInfo *draw_info,const PixelInfo target,
229 const ssize_t x_offset,const ssize_t y_offset,
230 const MagickBooleanType invert)
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]231</pre>
232
233<p>A description of each parameter follows:</p>
234
235<h5>image</h5>
236<p>the image.</p>
237
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]238<h5>draw_info</h5>
239<p>the draw info.</p>
240
241<h5>target</h5>
242<p>the RGB value of the target color.</p>
243
244<h5>x_offset,y_offset</h5>
245<p>the starting location of the operation.</p>
246
247<h5>invert</h5>
248<p>paint any pixel that does not match the target color.</p>
249
250 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]251<h2><a href="http://www.imagemagick.org/api/MagickCore/paint_8c.html" id="OilPaintImage">OilPaintImage</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]252<div class="doc-section">
253
254<p>OilPaintImage() applies a special effect filter that simulates an oil painting. Each pixel is replaced by the most frequent color occurring in a circular region defined by radius.</p>
255
256<p>The format of the OilPaintImage method is:</p>
257
258<pre class="code">
259 Image *OilPaintImage(const Image *image,const double radius,
260 ExceptionInfo *exception)
261</pre>
262
263<p>A description of each parameter follows:</p>
264
265<h5>image</h5>
266<p>the image.</p>
267
268<h5>radius</h5>
269<p>the radius of the circular neighborhood.</p>
270
271<h5>exception</h5>
272<p>return any errors or warnings in this structure.</p>
273
274 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]275<h2><a href="http://www.imagemagick.org/api/MagickCore/paint_8c.html" id="OpaquePaintImage">OpaquePaintImage</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]276<div class="doc-section">
277
278<p>OpaquePaintImage() changes any pixel that matches color with the color defined by fill.</p>
279
280<p>By default color must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. Fuzz defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color.</p>
281
282<p>The format of the OpaquePaintImage method is:</p>
283
284<pre class="code">
285 MagickBooleanType OpaquePaintImage(Image *image,
286 const PixelPacket *target,const PixelPacket *fill,
287 const MagickBooleanType invert)
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]288</pre>
289
290<p>A description of each parameter follows:</p>
291
292<h5>image</h5>
293<p>the image.</p>
294
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]295<h5>target</h5>
296<p>the RGB value of the target color.</p>
297
298<h5>fill</h5>
299<p>the replacement color.</p>
300
301<h5>invert</h5>
302<p>paint any pixel that does not match the target color.</p>
303
304 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]305<h2><a href="http://www.imagemagick.org/api/MagickCore/paint_8c.html" id="TransparentPaintImage">TransparentPaintImage</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]306<div class="doc-section">
307
308<p>TransparentPaintImage() changes the opacity value associated with any pixel that matches color to the value defined by opacity.</p>
309
310<p>By default color must match a particular pixel color exactly. However, in many cases two colors may differ by a small amount. Fuzz defines how much tolerance is acceptable to consider two colors as the same. For example, set fuzz to 10 and the color red at intensities of 100 and 102 respectively are now interpreted as the same color.</p>
311
312<p>The format of the TransparentPaintImage method is:</p>
313
314<pre class="code">
315 MagickBooleanType TransparentPaintImage(Image *image,
cristya4dfb122011-07-07 19:01:57 +0000[diff] [blame]316 const PixelInfo *target,const Quantum opacity,
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]317 const MagickBooleanType invert)
318</pre>
319
320<p>A description of each parameter follows:</p>
321
322<h5>image</h5>
323<p>the image.</p>
324
325<h5>target</h5>
326<p>the target color.</p>
327
328<h5>opacity</h5>
329<p>the replacement opacity value.</p>
330
331<h5>invert</h5>
332<p>paint any pixel that does not match the target color.</p>
333
334 </div>
cristy350dea42011-02-15 17:31:04 +0000[diff] [blame]335<h2><a href="http://www.imagemagick.org/api/MagickCore/paint_8c.html" id="TransparentPaintImageChroma">TransparentPaintImageChroma</a></h2>
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]336<div class="doc-section">
337
338<p>TransparentPaintImageChroma() changes the opacity value associated with any pixel that matches color to the value defined by opacity.</p>
339
340<p>As there is one fuzz value for the all the channels, the TransparentPaintImage() API is not suitable for the operations like chroma, where the tolerance for similarity of two color component (RGB) can be different, Thus we define this method take two target pixels (one low and one hight) and all the pixels of an image which are lying between these two pixels are made transparent.</p>
341
342<p>The format of the TransparentPaintImage method is:</p>
343
344<pre class="code">
345 MagickBooleanType TransparentPaintImage(Image *image,
cristya4dfb122011-07-07 19:01:57 +0000[diff] [blame]346 const PixelInfo *low,const PixelInfo *hight,
cristy6f77f692011-02-15 15:31:39 +0000[diff] [blame]347 const Quantum opacity,const MagickBooleanType invert)
348</pre>
349
350<p>A description of each parameter follows:</p>
351
352<h5>image</h5>
353<p>the image.</p>
354
355<h5>low</h5>
356<p>the low target color.</p>
357
358<h5>high</h5>
359<p>the high target color.</p>
360
361<h5>opacity</h5>
362<p>the replacement opacity value.</p>
363
364<h5>invert</h5>
365<p>paint any pixel that does not match the target color.</p>
366
367 </div>
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame]368
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