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cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]58<p class="text-center"><a href="resize.html#AdaptiveResizeImage">AdaptiveResizeImage</a> • <a href="resize.html#InterpolativeResizeImage">InterpolativeResizeImage</a> • <a href="resize.html#LiquidRescaleImage">LiquidRescaleImage</a> • <a href="resize.html#MagnifyImage">MagnifyImage</a> • <a href="resize.html#MinifyImage">MinifyImage</a> • <a href="resize.html#ResampleImage">ResampleImage</a> • <a href="resize.html#ResizeImage">ResizeImage</a> • <a href="resize.html#SampleImage">SampleImage</a> • <a href="resize.html#ScaleImage">ScaleImage</a> • <a href="resize.html#ThumbnailImage">ThumbnailImage</a></p>
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]59
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]60<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="AdaptiveResizeImage">AdaptiveResizeImage</a></h2>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]61
62<p>AdaptiveResizeImage() adaptively resize image with pixel resampling.</p>
63
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]64<p>This is shortcut function for a fast interpolative resize using mesh interpolation. It works well for small resizes of less than +/- 50 of the original image size. For larger resizing on images a full filtered and slower resize function should be used instead.</p>
65
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]66<p>The format of the AdaptiveResizeImage method is:</p>
67
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]68<pre class="text">
69Image *AdaptiveResizeImage(const Image *image,const size_t columns,
70 const size_t rows,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]71</pre>
72
73<p>A description of each parameter follows:</p>
74
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]75<dd>
76</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]77
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]78<dd> </dd>
79<dl class="dl-horizontal">
80<dt>image</dt>
81<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]82
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]83<dd> </dd>
84<dt>columns</dt>
85<dd>the number of columns in the resized image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]86
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]87<dd> </dd>
88<dt>rows</dt>
89<dd>the number of rows in the resized image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]90
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]91<dd> </dd>
92<dt>exception</dt>
93<dd>return any errors or warnings in this structure. </dd>
94
95<dd> </dd>
96</dl>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]97<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="InterpolativeResizeImage">InterpolativeResizeImage</a></h2>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]98
99<p>InterpolativeResizeImage() resizes an image using the specified interpolation method.</p>
100
101<p>The format of the InterpolativeResizeImage method is:</p>
102
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]103<pre class="text">
104Image *InterpolativeResizeImage(const Image *image,const size_t columns,
cristy82a2ff22015-05-12 16:41:32 +0000[diff] [blame^]105 const size_t rows,const InterpolatePixelMethod method,
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]106 ExceptionInfo *exception)
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]107</pre>
108
109<p>A description of each parameter follows:</p>
110
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]111<dd>
112</dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]113
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]114<dd> </dd>
115<dl class="dl-horizontal">
116<dt>image</dt>
117<dd>the image. </dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]118
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]119<dd> </dd>
120<dt>columns</dt>
121<dd>the number of columns in the resized image. </dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]122
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]123<dd> </dd>
124<dt>rows</dt>
125<dd>the number of rows in the resized image. </dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]126
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]127<dd> </dd>
128<dt>method</dt>
129<dd>the pixel interpolation method. </dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]130
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]131<dd> </dd>
132<dt>exception</dt>
133<dd>return any errors or warnings in this structure. </dd>
134
135<dd> </dd>
136</dl>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]137<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="LiquidRescaleImage">LiquidRescaleImage</a></h2>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]138
139<p>LiquidRescaleImage() rescales image with seam carving.</p>
140
141<p>The format of the LiquidRescaleImage method is:</p>
142
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]143<pre class="text">
cristy82a2ff22015-05-12 16:41:32 +0000[diff] [blame^]144Image *LiquidRescaleImage(const Image *image,
145 const size_t columns,const size_t rows,
146 const double delta_x,const double rigidity,ExceptionInfo *exception)
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]147</pre>
148
149<p>A description of each parameter follows:</p>
150
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]151<dd>
152</dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]153
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]154<dd> </dd>
155<dl class="dl-horizontal">
156<dt>image</dt>
157<dd>the image. </dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]158
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]159<dd> </dd>
160<dt>columns</dt>
161<dd>the number of columns in the rescaled image. </dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]162
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]163<dd> </dd>
164<dt>rows</dt>
165<dd>the number of rows in the rescaled image. </dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]166
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]167<dd> </dd>
168<dt>delta_x</dt>
169<dd>maximum seam transversal step (0 means straight seams). </dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]170
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]171<dd> </dd>
172<dt>rigidity</dt>
173<dd>introduce a bias for non-straight seams (typically 0). </dd>
cristy72da67d2013-02-24 21:40:48 +0000[diff] [blame]174
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]175<dd> </dd>
176<dt>exception</dt>
177<dd>return any errors or warnings in this structure. </dd>
178
179<dd> </dd>
180</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]181<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="MagnifyImage">MagnifyImage</a></h2>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]182
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]183<p>MagnifyImage() doubles the size of the image with a pixel art scaling algorithm.</p>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]184
185<p>The format of the MagnifyImage method is:</p>
186
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]187<pre class="text">
188Image *MagnifyImage(const Image *image,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]189</pre>
190
191<p>A description of each parameter follows:</p>
192
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]193<dd>
194</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]195
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]196<dd> </dd>
197<dl class="dl-horizontal">
198<dt>image</dt>
199<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]200
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]201<dd> </dd>
202<dt>exception</dt>
203<dd>return any errors or warnings in this structure. </dd>
204
205<dd> </dd>
206</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]207<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="MinifyImage">MinifyImage</a></h2>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]208
209<p>MinifyImage() is a convenience method that scales an image proportionally to half its size.</p>
210
211<p>The format of the MinifyImage method is:</p>
212
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]213<pre class="text">
214Image *MinifyImage(const Image *image,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]215</pre>
216
217<p>A description of each parameter follows:</p>
218
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]219<dd>
220</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]221
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]222<dd> </dd>
223<dl class="dl-horizontal">
224<dt>image</dt>
225<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]226
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]227<dd> </dd>
228<dt>exception</dt>
229<dd>return any errors or warnings in this structure. </dd>
230
231<dd> </dd>
232</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]233<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="ResampleImage">ResampleImage</a></h2>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]234
235<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>
236
237<p>The format of the ResampleImage method is:</p>
238
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]239<pre class="text">
240Image *ResampleImage(Image *image,const double x_resolution,
cristy82a2ff22015-05-12 16:41:32 +0000[diff] [blame^]241 const double y_resolution,const FilterTypes filter,const double blur,
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]242 ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]243</pre>
244
245<p>A description of each parameter follows:</p>
246
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]247<dd>
248</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]249
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]250<dd> </dd>
251<dl class="dl-horizontal">
252<dt>image</dt>
253<dd>the image to be resized to fit the given resolution. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]254
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]255<dd> </dd>
256<dt>x_resolution</dt>
257<dd>the new image x resolution. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]258
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]259<dd> </dd>
260<dt>y_resolution</dt>
261<dd>the new image y resolution. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]262
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]263<dd> </dd>
264<dt>filter</dt>
265<dd>Image filter to use. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]266
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]267<dd> </dd>
cristy82a2ff22015-05-12 16:41:32 +0000[diff] [blame^]268<dt>blur</dt>
269<dd>the blur factor where &gt; 1 is blurry, &lt; 1 is sharp. </dd>
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]270
271<dd> </dd>
272</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]273<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="ResizeImage">ResizeImage</a></h2>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]274
275<p>ResizeImage() scales an image to the desired dimensions, using the given filter (see AcquireFilterInfo()).</p>
276
277<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>
278
279<p>ResizeImage() was inspired by Paul Heckbert's "zoom" program.</p>
280
281<p>The format of the ResizeImage method is:</p>
282
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]283<pre class="text">
cristy82a2ff22015-05-12 16:41:32 +0000[diff] [blame^]284Image *ResizeImage(Image *image,const size_t columns,
285 const size_t rows,const FilterTypes filter,const double blur,
286 ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]287</pre>
288
289<p>A description of each parameter follows:</p>
290
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]291<dd>
292</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]293
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]294<dd> </dd>
295<dl class="dl-horizontal">
296<dt>image</dt>
297<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]298
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]299<dd> </dd>
300<dt>columns</dt>
301<dd>the number of columns in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]302
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]303<dd> </dd>
304<dt>rows</dt>
305<dd>the number of rows in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]306
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]307<dd> </dd>
308<dt>filter</dt>
309<dd>Image filter to use. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]310
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]311<dd> </dd>
cristy82a2ff22015-05-12 16:41:32 +0000[diff] [blame^]312<dt>blur</dt>
313<dd>the blur factor where &gt; 1 is blurry, &lt; 1 is sharp. Typically set this to 1.0. </dd>
314
315<dd> </dd>
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]316<dt>exception</dt>
317<dd>return any errors or warnings in this structure. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]318
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]319<dd> </dd>
320</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]321<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="SampleImage">SampleImage</a></h2>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]322
323<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>
324
325<p>The format of the SampleImage method is:</p>
326
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]327<pre class="text">
328Image *SampleImage(const Image *image,const size_t columns,
329 const size_t rows,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]330</pre>
331
332<p>A description of each parameter follows:</p>
333
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]334<dd>
335</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]336
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]337<dd> </dd>
338<dl class="dl-horizontal">
339<dt>image</dt>
340<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]341
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]342<dd> </dd>
343<dt>columns</dt>
344<dd>the number of columns in the sampled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]345
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]346<dd> </dd>
347<dt>rows</dt>
348<dd>the number of rows in the sampled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]349
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]350<dd> </dd>
351<dt>exception</dt>
352<dd>return any errors or warnings in this structure. </dd>
353
354<dd> </dd>
355</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]356<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="ScaleImage">ScaleImage</a></h2>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]357
358<p>ScaleImage() changes the size of an image to the given dimensions.</p>
359
360<p>The format of the ScaleImage method is:</p>
361
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]362<pre class="text">
363Image *ScaleImage(const Image *image,const size_t columns,
364 const size_t rows,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]365</pre>
366
367<p>A description of each parameter follows:</p>
368
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]369<dd>
370</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]371
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]372<dd> </dd>
373<dl class="dl-horizontal">
374<dt>image</dt>
375<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]376
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]377<dd> </dd>
378<dt>columns</dt>
379<dd>the number of columns in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]380
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]381<dd> </dd>
382<dt>rows</dt>
383<dd>the number of rows in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]384
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]385<dd> </dd>
386<dt>exception</dt>
387<dd>return any errors or warnings in this structure. </dd>
388
389<dd> </dd>
390</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]391<h2><a href="http://www.imagemagick.org/api/MagickCore/resize_8c.html" id="ThumbnailImage">ThumbnailImage</a></h2>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]392
393<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>
394
395<p>The format of the ThumbnailImage method is:</p>
396
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]397<pre class="text">
398Image *ThumbnailImage(const Image *image,const size_t columns,
399 const size_t rows,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]400</pre>
401
402<p>A description of each parameter follows:</p>
403
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]404<dd>
405</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]406
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]407<dd> </dd>
408<dl class="dl-horizontal">
409<dt>image</dt>
410<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]411
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]412<dd> </dd>
413<dt>columns</dt>
414<dd>the number of columns in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]415
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]416<dd> </dd>
417<dt>rows</dt>
418<dd>the number of rows in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]419
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]420<dd> </dd>
421<dt>exception</dt>
422<dd>return any errors or warnings in this structure. </dd>
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]423
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]424<dd> </dd>
425</dl>
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