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192
cristy6f77f692011-02-15 15:31:39 +0000193<h1>Module paint
194 Methods</h1>
195<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 +0000196
cristy6f77f692011-02-15 15:31:39 +0000197<h2><a href="http://www.imagemagick.org/api/MagickCore/paint
198_8c.html" id="FloodfillPaintImage">FloodfillPaintImage</a></h2>
199<div class="doc-section">
200
201<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>
202
203<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>
204
205<p>The format of the FloodfillPaintImage method is:</p>
206
207<pre class="code">
208 MagickBooleanType FloodfillPaintImage(Image *image,
209 const ChannelType channel,const DrawInfo *draw_info,
210 const MagickPixelPacket target,const ssize_t x_offset,
211 const ssize_t y_offset,const MagickBooleanType invert)
212</pre>
213
214<p>A description of each parameter follows:</p>
215
216<h5>image</h5>
217<p>the image.</p>
218
219<h5>channel</h5>
220<p>the channel(s).</p>
221
222<h5>draw_info</h5>
223<p>the draw info.</p>
224
225<h5>target</h5>
226<p>the RGB value of the target color.</p>
227
228<h5>x_offset,y_offset</h5>
229<p>the starting location of the operation.</p>
230
231<h5>invert</h5>
232<p>paint any pixel that does not match the target color.</p>
233
234 </div>
235<h2><a href="http://www.imagemagick.org/api/MagickCore/paint
236_8c.html" id="OilPaintImage">OilPaintImage</a></h2>
237<div class="doc-section">
238
239<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>
240
241<p>The format of the OilPaintImage method is:</p>
242
243<pre class="code">
244 Image *OilPaintImage(const Image *image,const double radius,
245 ExceptionInfo *exception)
246</pre>
247
248<p>A description of each parameter follows:</p>
249
250<h5>image</h5>
251<p>the image.</p>
252
253<h5>radius</h5>
254<p>the radius of the circular neighborhood.</p>
255
256<h5>exception</h5>
257<p>return any errors or warnings in this structure.</p>
258
259 </div>
260<h2><a href="http://www.imagemagick.org/api/MagickCore/paint
261_8c.html" id="OpaquePaintImage">OpaquePaintImage</a></h2>
262<div class="doc-section">
263
264<p>OpaquePaintImage() changes any pixel that matches color with the color defined by fill.</p>
265
266<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>
267
268<p>The format of the OpaquePaintImage method is:</p>
269
270<pre class="code">
271 MagickBooleanType OpaquePaintImage(Image *image,
272 const PixelPacket *target,const PixelPacket *fill,
273 const MagickBooleanType invert)
274 MagickBooleanType OpaquePaintImageChannel(Image *image,
275 const ChannelType channel,const PixelPacket *target,
276 const PixelPacket *fill,const MagickBooleanType invert)
277</pre>
278
279<p>A description of each parameter follows:</p>
280
281<h5>image</h5>
282<p>the image.</p>
283
284<h5>channel</h5>
285<p>the channel(s).</p>
286
287<h5>target</h5>
288<p>the RGB value of the target color.</p>
289
290<h5>fill</h5>
291<p>the replacement color.</p>
292
293<h5>invert</h5>
294<p>paint any pixel that does not match the target color.</p>
295
296 </div>
297<h2><a href="http://www.imagemagick.org/api/MagickCore/paint
298_8c.html" id="TransparentPaintImage">TransparentPaintImage</a></h2>
299<div class="doc-section">
300
301<p>TransparentPaintImage() changes the opacity value associated with any pixel that matches color to the value defined by opacity.</p>
302
303<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>
304
305<p>The format of the TransparentPaintImage method is:</p>
306
307<pre class="code">
308 MagickBooleanType TransparentPaintImage(Image *image,
309 const MagickPixelPacket *target,const Quantum opacity,
310 const MagickBooleanType invert)
311</pre>
312
313<p>A description of each parameter follows:</p>
314
315<h5>image</h5>
316<p>the image.</p>
317
318<h5>target</h5>
319<p>the target color.</p>
320
321<h5>opacity</h5>
322<p>the replacement opacity value.</p>
323
324<h5>invert</h5>
325<p>paint any pixel that does not match the target color.</p>
326
327 </div>
328<h2><a href="http://www.imagemagick.org/api/MagickCore/paint
329_8c.html" id="TransparentPaintImageChroma">TransparentPaintImageChroma</a></h2>
330<div class="doc-section">
331
332<p>TransparentPaintImageChroma() changes the opacity value associated with any pixel that matches color to the value defined by opacity.</p>
333
334<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>
335
336<p>The format of the TransparentPaintImage method is:</p>
337
338<pre class="code">
339 MagickBooleanType TransparentPaintImage(Image *image,
340 const MagickPixelPacket *low,const MagickPixelPacket *hight,
341 const Quantum opacity,const MagickBooleanType invert)
342</pre>
343
344<p>A description of each parameter follows:</p>
345
346<h5>image</h5>
347<p>the image.</p>
348
349<h5>low</h5>
350<p>the low target color.</p>
351
352<h5>high</h5>
353<p>the high target color.</p>
354
355<h5>opacity</h5>
356<p>the replacement opacity value.</p>
357
358<h5>invert</h5>
359<p>paint any pixel that does not match the target color.</p>
360
361 </div>
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