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167
168<div class="main">
169
cristy73fd1cd2010-09-12 19:14:25 +0000[diff] [blame]170<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]171
172<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
173_8c.html" target="source" name="AdaptiveResizeImage">AdaptiveResizeImage</a></h2>
174<div class="doc-section">
175
176<p>AdaptiveResizeImage() adaptively resize image with pixel resampling.</p></ol>
177
178<p>The format of the AdaptiveResizeImage method is:</p>
179
180<pre class="code">
cristybc9539a2010-08-16 18:06:20 +0000[diff] [blame]181 Image *AdaptiveResizeImage(const Image *image,const size_t columns,
182 const size_t rows,ExceptionInfo *exception)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]183</pre>
184
185<p>A description of each parameter follows:</p></ol>
186
187<h5>image</h5>
188<ol><p>the image.</p></ol>
189
190<h5>columns</h5>
191<ol><p>the number of columns in the resized image.</p></ol>
192
193<h5>rows</h5>
194<ol><p>the number of rows in the resized image.</p></ol>
195
196<h5>exception</h5>
197<ol><p>return any errors or warnings in this structure.</p></ol>
198
199 </div>
200<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
201_8c.html" target="source" name="MagnifyImage">MagnifyImage</a></h2>
202<div class="doc-section">
203
204<p>MagnifyImage() is a convenience method that scales an image proportionally to twice its size.</p></ol>
205
206<p>The format of the MagnifyImage method is:</p>
207
208<pre class="code">
209 Image *MagnifyImage(const Image *image,ExceptionInfo *exception)
210</pre>
211
212<p>A description of each parameter follows:</p></ol>
213
214<h5>image</h5>
215<ol><p>the image.</p></ol>
216
217<h5>exception</h5>
218<ol><p>return any errors or warnings in this structure.</p></ol>
219
220 </div>
221<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
222_8c.html" target="source" name="MinifyImage">MinifyImage</a></h2>
223<div class="doc-section">
224
225<p>MinifyImage() is a convenience method that scales an image proportionally to half its size.</p></ol>
226
227<p>The format of the MinifyImage method is:</p>
228
229<pre class="code">
230 Image *MinifyImage(const Image *image,ExceptionInfo *exception)
231</pre>
232
233<p>A description of each parameter follows:</p></ol>
234
235<h5>image</h5>
236<ol><p>the image.</p></ol>
237
238<h5>exception</h5>
239<ol><p>return any errors or warnings in this structure.</p></ol>
240
241 </div>
242<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
243_8c.html" target="source" name="ResampleImage">ResampleImage</a></h2>
244<div class="doc-section">
245
246<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>
247
248<p>The format of the ResampleImage method is:</p>
249
250<pre class="code">
251 Image *ResampleImage(Image *image,const double x_resolution,
252 const double y_resolution,const FilterTypes filter,const double blur,
253 ExceptionInfo *exception)
254</pre>
255
256<p>A description of each parameter follows:</p></ol>
257
258<h5>image</h5>
259<ol><p>the image to be resized to fit the given resolution.</p></ol>
260
261<h5>x_resolution</h5>
262<ol><p>the new image x resolution.</p></ol>
263
264<h5>y_resolution</h5>
265<ol><p>the new image y resolution.</p></ol>
266
267<h5>filter</h5>
268<ol><p>Image filter to use.</p></ol>
269
270<h5>blur</h5>
271<ol><p>the blur factor where > 1 is blurry, < 1 is sharp.</p></ol>
272
273 </div>
274<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
275_8c.html" target="source" name="LiquidRescaleImage">LiquidRescaleImage</a></h2>
276<div class="doc-section">
277
278<p>LiquidRescaleImage() rescales image with seam carving.</p></ol>
279
280<p>The format of the LiquidRescaleImage method is:</p>
281
282<pre class="code">
283 Image *LiquidRescaleImage(const Image *image,
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]284 const size_t columns,const size_t rows,
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]285 const double delta_x,const double rigidity,ExceptionInfo *exception)
286</pre>
287
288<p>A description of each parameter follows:</p></ol>
289
290<h5>image</h5>
291<ol><p>the image.</p></ol>
292
293<h5>columns</h5>
294<ol><p>the number of columns in the rescaled image.</p></ol>
295
296<h5>rows</h5>
297<ol><p>the number of rows in the rescaled image.</p></ol>
298
299<h5>delta_x</h5>
300<ol><p>maximum seam transversal step (0 means straight seams).</p></ol>
301
302<h5>rigidity</h5>
303<ol><p>introduce a bias for non-straight seams (typically 0).</p></ol>
304
305<h5>exception</h5>
306<ol><p>return any errors or warnings in this structure.</p></ol>
307
308 </div>
309<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
310_8c.html" target="source" name="ResizeImage">ResizeImage</a></h2>
311<div class="doc-section">
312
cristy73fd1cd2010-09-12 19:14:25 +0000[diff] [blame]313<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]314
315<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>
316
317<p>ResizeImage() was inspired by Paul Heckbert's "zoom" program.</p></ol>
318
319<p>The format of the ResizeImage method is:</p>
320
321<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]322 Image *ResizeImage(Image *image,const size_t columns,
323 const size_t rows,const FilterTypes filter,const double blur,
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]324 ExceptionInfo *exception)
325</pre>
326
327<p>A description of each parameter follows:</p></ol>
328
329<h5>image</h5>
330<ol><p>the image.</p></ol>
331
332<h5>columns</h5>
333<ol><p>the number of columns in the scaled image.</p></ol>
334
335<h5>rows</h5>
336<ol><p>the number of rows in the scaled image.</p></ol>
337
338<h5>filter</h5>
339<ol><p>Image filter to use.</p></ol>
340
341<h5>blur</h5>
cristybc9539a2010-08-16 18:06:20 +0000[diff] [blame]342<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]343
344<h5>exception</h5>
345<ol><p>return any errors or warnings in this structure.</p></ol>
346
347 </div>
348<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
349_8c.html" target="source" name="SampleImage">SampleImage</a></h2>
350<div class="doc-section">
351
352<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>
353
354<p>The format of the SampleImage method is:</p>
355
356<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]357 Image *SampleImage(const Image *image,const size_t columns,
358 const size_t rows,ExceptionInfo *exception)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]359</pre>
360
361<p>A description of each parameter follows:</p></ol>
362
363<h5>image</h5>
364<ol><p>the image.</p></ol>
365
366<h5>columns</h5>
367<ol><p>the number of columns in the sampled image.</p></ol>
368
369<h5>rows</h5>
370<ol><p>the number of rows in the sampled image.</p></ol>
371
372<h5>exception</h5>
373<ol><p>return any errors or warnings in this structure.</p></ol>
374
375 </div>
376<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
377_8c.html" target="source" name="ScaleImage">ScaleImage</a></h2>
378<div class="doc-section">
379
380<p>ScaleImage() changes the size of an image to the given dimensions.</p></ol>
381
382<p>The format of the ScaleImage method is:</p>
383
384<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]385 Image *ScaleImage(const Image *image,const size_t columns,
386 const size_t rows,ExceptionInfo *exception)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]387</pre>
388
389<p>A description of each parameter follows:</p></ol>
390
391<h5>image</h5>
392<ol><p>the image.</p></ol>
393
394<h5>columns</h5>
395<ol><p>the number of columns in the scaled image.</p></ol>
396
397<h5>rows</h5>
398<ol><p>the number of rows in the scaled image.</p></ol>
399
400<h5>exception</h5>
401<ol><p>return any errors or warnings in this structure.</p></ol>
402
403 </div>
404<h2><a href="http://www.imagemagick.org/api/MagickCore/resize
405_8c.html" target="source" name="ThumbnailImage">ThumbnailImage</a></h2>
406<div class="doc-section">
407
408<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>
409
410<p>The format of the ThumbnailImage method is:</p>
411
412<pre class="code">
cristybb503372010-05-27 20:51:26 +0000[diff] [blame]413 Image *ThumbnailImage(const Image *image,const size_t columns,
414 const size_t rows,ExceptionInfo *exception)
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]415</pre>
416
417<p>A description of each parameter follows:</p></ol>
418
419<h5>image</h5>
420<ol><p>the image.</p></ol>
421
422<h5>columns</h5>
423<ol><p>the number of columns in the scaled image.</p></ol>
424
425<h5>rows</h5>
426<ol><p>the number of rows in the scaled image.</p></ol>
427
428<h5>exception</h5>
429<ol><p>return any errors or warnings in this structure.</p></ol>
430
431 </div>
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame]432
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