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170
171<div class="main">
172
cristy73fd1cd2010-09-12 19:14:25 +0000[diff] [blame]173<p class="navigation-index">[<a href="#AdaptiveResizeImage">AdaptiveResizeImage</a> &bull; <a href="#MagnifyImage">MagnifyImage</a> &bull; <a href="#MinifyImage">MinifyImage</a> &bull; <a href="#ResampleImage">ResampleImage</a> &bull; <a href="#LiquidRescaleImage">LiquidRescaleImage</a> &bull; <a href="#ResizeImage">ResizeImage</a> &bull; <a href="#SampleImage">SampleImage</a> &bull; <a href="#ScaleImage">ScaleImage</a> &bull; <a href="#ThumbnailImage">ThumbnailImage</a>]</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]174
175<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
176_8c.html" target="source" name="AdaptiveResizeImage">AdaptiveResizeImage</a></h2>
177<div class="doc-section">
178
179<p>AdaptiveResizeImage() adaptively resize image with pixel resampling.</p></ol>
180
181<p>The format of the AdaptiveResizeImage method is:</p>
182
183<pre class="code">
cristybc9539a2010-08-16 18:06:20 +0000[diff] [blame]184 Image *AdaptiveResizeImage(const Image *image,const size_t columns,
185 const size_t rows,ExceptionInfo *exception)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]186</pre>
187
188<p>A description of each parameter follows:</p></ol>
189
190<h5>image</h5>
191<ol><p>the image.</p></ol>
192
193<h5>columns</h5>
194<ol><p>the number of columns in the resized image.</p></ol>
195
196<h5>rows</h5>
197<ol><p>the number of rows in the resized image.</p></ol>
198
199<h5>exception</h5>
200<ol><p>return any errors or warnings in this structure.</p></ol>
201
202 </div>
203<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
204_8c.html" target="source" name="MagnifyImage">MagnifyImage</a></h2>
205<div class="doc-section">
206
207<p>MagnifyImage() is a convenience method that scales an image proportionally to twice its size.</p></ol>
208
209<p>The format of the MagnifyImage method is:</p>
210
211<pre class="code">
212 Image *MagnifyImage(const Image *image,ExceptionInfo *exception)
213</pre>
214
215<p>A description of each parameter follows:</p></ol>
216
217<h5>image</h5>
218<ol><p>the image.</p></ol>
219
220<h5>exception</h5>
221<ol><p>return any errors or warnings in this structure.</p></ol>
222
223 </div>
224<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
225_8c.html" target="source" name="MinifyImage">MinifyImage</a></h2>
226<div class="doc-section">
227
228<p>MinifyImage() is a convenience method that scales an image proportionally to half its size.</p></ol>
229
230<p>The format of the MinifyImage method is:</p>
231
232<pre class="code">
233 Image *MinifyImage(const Image *image,ExceptionInfo *exception)
234</pre>
235
236<p>A description of each parameter follows:</p></ol>
237
238<h5>image</h5>
239<ol><p>the image.</p></ol>
240
241<h5>exception</h5>
242<ol><p>return any errors or warnings in this structure.</p></ol>
243
244 </div>
245<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
246_8c.html" target="source" name="ResampleImage">ResampleImage</a></h2>
247<div class="doc-section">
248
249<p>ResampleImage() resize image in terms of its pixel size, so that when displayed at the given resolution it will be the same size in terms of real world units as the original image at the original resolution.</p></ol>
250
251<p>The format of the ResampleImage method is:</p>
252
253<pre class="code">
254 Image *ResampleImage(Image *image,const double x_resolution,
255 const double y_resolution,const FilterTypes filter,const double blur,
256 ExceptionInfo *exception)
257</pre>
258
259<p>A description of each parameter follows:</p></ol>
260
261<h5>image</h5>
262<ol><p>the image to be resized to fit the given resolution.</p></ol>
263
264<h5>x_resolution</h5>
265<ol><p>the new image x resolution.</p></ol>
266
267<h5>y_resolution</h5>
268<ol><p>the new image y resolution.</p></ol>
269
270<h5>filter</h5>
271<ol><p>Image filter to use.</p></ol>
272
273<h5>blur</h5>
274<ol><p>the blur factor where > 1 is blurry, < 1 is sharp.</p></ol>
275
276 </div>
277<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
278_8c.html" target="source" name="LiquidRescaleImage">LiquidRescaleImage</a></h2>
279<div class="doc-section">
280
281<p>LiquidRescaleImage() rescales image with seam carving.</p></ol>
282
283<p>The format of the LiquidRescaleImage method is:</p>
284
285<pre class="code">
286 Image *LiquidRescaleImage(const Image *image,
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]287 const size_t columns,const size_t rows,
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]288 const double delta_x,const double rigidity,ExceptionInfo *exception)
289</pre>
290
291<p>A description of each parameter follows:</p></ol>
292
293<h5>image</h5>
294<ol><p>the image.</p></ol>
295
296<h5>columns</h5>
297<ol><p>the number of columns in the rescaled image.</p></ol>
298
299<h5>rows</h5>
300<ol><p>the number of rows in the rescaled image.</p></ol>
301
302<h5>delta_x</h5>
303<ol><p>maximum seam transversal step (0 means straight seams).</p></ol>
304
305<h5>rigidity</h5>
306<ol><p>introduce a bias for non-straight seams (typically 0).</p></ol>
307
308<h5>exception</h5>
309<ol><p>return any errors or warnings in this structure.</p></ol>
310
311 </div>
312<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
313_8c.html" target="source" name="ResizeImage">ResizeImage</a></h2>
314<div class="doc-section">
315
cristy73fd1cd2010-09-12 19:14:25 +0000[diff] [blame]316<p>ResizeImage() scales an image to the desired dimensions, using the given filter (see AcquireFilterInfo()).</p></ol>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]317
318<p>If an undefined filter is given the filter defaults to Mitchell for a colormapped image, a image with a matte channel, or if the image is enlarged. Otherwise the filter defaults to a Lanczos.</p></ol>
319
320<p>ResizeImage() was inspired by Paul Heckbert's "zoom" program.</p></ol>
321
322<p>The format of the ResizeImage method is:</p>
323
324<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]325 Image *ResizeImage(Image *image,const size_t columns,
326 const size_t rows,const FilterTypes filter,const double blur,
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]327 ExceptionInfo *exception)
328</pre>
329
330<p>A description of each parameter follows:</p></ol>
331
332<h5>image</h5>
333<ol><p>the image.</p></ol>
334
335<h5>columns</h5>
336<ol><p>the number of columns in the scaled image.</p></ol>
337
338<h5>rows</h5>
339<ol><p>the number of rows in the scaled image.</p></ol>
340
341<h5>filter</h5>
342<ol><p>Image filter to use.</p></ol>
343
344<h5>blur</h5>
cristybc9539a2010-08-16 18:06:20 +0000[diff] [blame]345<ol><p>the blur factor where > 1 is blurry, < 1 is sharp. Typically set this to 1.0.</p></ol>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]346
347<h5>exception</h5>
348<ol><p>return any errors or warnings in this structure.</p></ol>
349
350 </div>
351<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
352_8c.html" target="source" name="SampleImage">SampleImage</a></h2>
353<div class="doc-section">
354
355<p>SampleImage() scales an image to the desired dimensions with pixel sampling. Unlike other scaling methods, this method does not introduce any additional color into the scaled image.</p></ol>
356
357<p>The format of the SampleImage method is:</p>
358
359<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]360 Image *SampleImage(const Image *image,const size_t columns,
361 const size_t rows,ExceptionInfo *exception)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]362</pre>
363
364<p>A description of each parameter follows:</p></ol>
365
366<h5>image</h5>
367<ol><p>the image.</p></ol>
368
369<h5>columns</h5>
370<ol><p>the number of columns in the sampled image.</p></ol>
371
372<h5>rows</h5>
373<ol><p>the number of rows in the sampled image.</p></ol>
374
375<h5>exception</h5>
376<ol><p>return any errors or warnings in this structure.</p></ol>
377
378 </div>
379<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
380_8c.html" target="source" name="ScaleImage">ScaleImage</a></h2>
381<div class="doc-section">
382
383<p>ScaleImage() changes the size of an image to the given dimensions.</p></ol>
384
385<p>The format of the ScaleImage method is:</p>
386
387<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]388 Image *ScaleImage(const Image *image,const size_t columns,
389 const size_t rows,ExceptionInfo *exception)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]390</pre>
391
392<p>A description of each parameter follows:</p></ol>
393
394<h5>image</h5>
395<ol><p>the image.</p></ol>
396
397<h5>columns</h5>
398<ol><p>the number of columns in the scaled image.</p></ol>
399
400<h5>rows</h5>
401<ol><p>the number of rows in the scaled image.</p></ol>
402
403<h5>exception</h5>
404<ol><p>return any errors or warnings in this structure.</p></ol>
405
406 </div>
407<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
408_8c.html" target="source" name="ThumbnailImage">ThumbnailImage</a></h2>
409<div class="doc-section">
410
411<p>ThumbnailImage() changes the size of an image to the given dimensions and removes any associated profiles. The goal is to produce small low cost thumbnail images suited for display on the Web.</p></ol>
412
413<p>The format of the ThumbnailImage method is:</p>
414
415<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]416 Image *ThumbnailImage(const Image *image,const size_t columns,
417 const size_t rows,ExceptionInfo *exception)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]418</pre>
419
420<p>A description of each parameter follows:</p></ol>
421
422<h5>image</h5>
423<ol><p>the image.</p></ol>
424
425<h5>columns</h5>
426<ol><p>the number of columns in the scaled image.</p></ol>
427
428<h5>rows</h5>
429<ol><p>the number of rows in the scaled image.</p></ol>
430
431<h5>exception</h5>
432<ol><p>return any errors or warnings in this structure.</p></ol>
433
434 </div>
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame]435
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