Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / ImageMagick / 5a367e483a276ac4b16c411626bdcc263e4cf33b / . / www / api / resize.html
blob: 63f17d0da56e5be8324193f2b614fa6eb7d4b64f [file] [log] [blame]
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
2<html lang="en">
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]3<head>
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]4 <meta charset="utf-8">
5 <meta http-equiv="X-UA-Compatible" content="IE=edge">
6 <meta name="viewport" content="width=device-width, initial-scale=1">
cristyffb69ed2010-12-25 00:06:48 +0000[diff] [blame]7 <title>ImageMagick: MagickCore, C API for ImageMagick: Resize an Image</title>
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]8 <meta http-equiv="content-language" content="en-US">
9 <meta http-equiv="content-type" content="text/html; charset=utf-8">
10 <meta http-equiv="reply-to" content="magick-users@imagemagick.org">
11 <meta name="application-name" content="ImageMagick">
12 <meta name="description" content="ImageMagick® is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, JPEG-2000, GIF, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.">
13 <meta name="application-url" content="http://www.imagemagick.org">
14 <meta name="generator" content="PHP">
15 <meta name="keywords" content="magickcore, c, api, for, imagemagick:, resize, an, image, ImageMagick, PerlMagick, image processing, image, photo, software, Magick++, OpenMP, convert">
16 <meta name="rating" content="GENERAL">
17 <meta name="robots" content="INDEX, FOLLOW">
18 <meta name="generator" content="ImageMagick Studio LLC">
19 <meta name="author" content="ImageMagick Studio LLC">
20 <meta name="revisit-after" content="2 DAYS">
21 <meta name="resource-type" content="document">
22 <meta name="copyright" content="Copyright (c) 1999-2012 ImageMagick Studio LLC">
23 <meta name="distribution" content="Global">
24 <meta name="magick-serial" content="P131-S030410-R485315270133-P82224-A6668-G1245-1">
25 <link rel="icon" href="../../images/wand.png">
26 <link rel="shortcut icon" href="../../images/wand.ico" type="images/x-icon">
27 <link rel="stylesheet" href="css/bootstrap.min.css">
28 <link rel="stylesheet" href="css/magick.css">
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]29</head>
30
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]31<body>
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]32<div class="main">
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]33<div class="magick-masthead">
34 <div class="container">
35 <script type="text/javascript">
36 <!--
37 google_ad_client = "pub-3129977114552745";
38 google_ad_slot = "5439289906";
39 google_ad_width = 728;
40 google_ad_height = 90;
41 //-->
42 </script>
43 <center><script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
44 </script></center>
45 <nav class="magick-nav">
46 <a class="magick-nav-item " href="../../index.html">Home</a>
47 <a class="magick-nav-item " href="../../www/binary-releases.html">Downloads</a>
48 <a class="magick-nav-item " href="../../www/command-line-tools.html">Tools</a>
49 <a class="magick-nav-item " href="../../www/command-line-options.html">Options</a>
50 <a class="magick-nav-item " href="../../www/api.html">Development</a>
51 <a class="magick-nav-item" href="http://www.imagemagick.org/discourse-server/">Community</a>
52 <a class="magick-nav-item navbar-right " href="http://www.imagemagick.org/script/search.php">Search</a>
53 </nav>
54 </div>
55</div>
56<div class="container">
57<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]58
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]59<div class="magick-header">
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,
105 const size_t rows,const PixelInterpolateMethod method,
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">
144Image *LiquidRescaleImage(const Image *image,const size_t columns,
145 const size_t rows,const double delta_x,const double rigidity,
146 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,
241 const double y_resolution,const FilterTypes filter,
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>
268<dt>exception</dt>
269<dd>return any errors or warnings in this structure. </dd>
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">
284Image *ResizeImage(Image *image,const size_t columns,const size_t rows,
285 const FilterTypes filter,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]286</pre>
287
288<p>A description of each parameter follows:</p>
289
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]290<dd>
291</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]292
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]293<dd> </dd>
294<dl class="dl-horizontal">
295<dt>image</dt>
296<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]297
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]298<dd> </dd>
299<dt>columns</dt>
300<dd>the number of columns in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]301
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]302<dd> </dd>
303<dt>rows</dt>
304<dd>the number of rows in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]305
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]306<dd> </dd>
307<dt>filter</dt>
308<dd>Image filter to use. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]309
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]310<dd> </dd>
311<dt>exception</dt>
312<dd>return any errors or warnings in this structure. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]313
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]314<dd> </dd>
315</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]316<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]317
318<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>
319
320<p>The format of the SampleImage method is:</p>
321
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]322<pre class="text">
323Image *SampleImage(const Image *image,const size_t columns,
324 const size_t rows,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]325</pre>
326
327<p>A description of each parameter follows:</p>
328
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]329<dd>
330</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]331
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]332<dd> </dd>
333<dl class="dl-horizontal">
334<dt>image</dt>
335<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]336
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]337<dd> </dd>
338<dt>columns</dt>
339<dd>the number of columns in the sampled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]340
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]341<dd> </dd>
342<dt>rows</dt>
343<dd>the number of rows in the sampled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]344
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]345<dd> </dd>
346<dt>exception</dt>
347<dd>return any errors or warnings in this structure. </dd>
348
349<dd> </dd>
350</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]351<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]352
353<p>ScaleImage() changes the size of an image to the given dimensions.</p>
354
355<p>The format of the ScaleImage method is:</p>
356
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]357<pre class="text">
358Image *ScaleImage(const Image *image,const size_t columns,
359 const size_t rows,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]360</pre>
361
362<p>A description of each parameter follows:</p>
363
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]364<dd>
365</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]366
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]367<dd> </dd>
368<dl class="dl-horizontal">
369<dt>image</dt>
370<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]371
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]372<dd> </dd>
373<dt>columns</dt>
374<dd>the number of columns in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]375
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]376<dd> </dd>
377<dt>rows</dt>
378<dd>the number of rows in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]379
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]380<dd> </dd>
381<dt>exception</dt>
382<dd>return any errors or warnings in this structure. </dd>
383
384<dd> </dd>
385</dl>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]386<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]387
388<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>
389
390<p>The format of the ThumbnailImage method is:</p>
391
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]392<pre class="text">
393Image *ThumbnailImage(const Image *image,const size_t columns,
394 const size_t rows,ExceptionInfo *exception)
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]395</pre>
396
397<p>A description of each parameter follows:</p>
398
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]399<dd>
400</dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]401
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]402<dd> </dd>
403<dl class="dl-horizontal">
404<dt>image</dt>
405<dd>the image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]406
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]407<dd> </dd>
408<dt>columns</dt>
409<dd>the number of columns in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]410
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]411<dd> </dd>
412<dt>rows</dt>
413<dd>the number of rows in the scaled image. </dd>
cristy20398432011-08-11 01:31:50 +0000[diff] [blame]414
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]415<dd> </dd>
416<dt>exception</dt>
417<dd>return any errors or warnings in this structure. </dd>
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]418
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]419<dd> </dd>
420</dl>
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]421</div>
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]422 <footer class="magick-footer">
423 <div class="magick-nav-item navbar-left">
424 <a href="../../www/support.html">Donations</a>
425 </div>
426 <div class="magick-nav-item navbar-right">
427 <a class="FlattrButton" style="display:none;" rev="flattr;button:compact;" href="../../index.html"></a>
428 <noscript>
429 <a href="http://flattr.com/thing/947300/Convert-Edit-And-Compose-Images" target="_blank">
430 <img src="http://api.flattr.com/button/flattr-badge-large.png" alt="Flattr this" title="Flattr this" border="0"></a>
431 </noscript>
432 </div>
433 <p><a href="../../www/sitemap.html">Sitemap</a> •
434 <a href="../../www/links.html">Related</a> •
435 <a href="http://www.imagemagick.org/MagickStudio/scripts/MagickStudio.cgi">Image Studio</a> •
436 <a href="http://jqmagick.imagemagick.org/">JqMagick</a> •
437 <a href="http://pgp.mit.edu:11371/pks/lookup?op=get&amp;search=0x89AB63D48277377A">Public Key</a>
438</p>
439 <p><a href="resize.html#">Back to top</a> •
440 <a href="../../www/contact.html">Contact Us</a></p>
441 </footer>
442</div><!-- /.container -->
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]443
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]444 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
445 <script src="../../js/bootstrap.min.js"></script>
446 <script type="text/javascript">
447 /* */
448 (function() {
449 var s = document.createElement('offline-script'), t = document.getElementsByTagName('offline-script')[0];
450 s.type = 'text/javascript';
451 s.async = true;
452 s.src = 'http://api.flattr.com/js/0.6/load.js?mode=auto';
453 t.parentNode.insertBefore(s, t);
454 })();
455 /* */
456 </script>
cristy44cbd482013-08-04 20:53:36 +0000[diff] [blame]457</div>
cristy06f63f22012-10-31 00:50:07 +0000[diff] [blame]458</body>
cristy5a367e42015-05-05 12:39:18 +0000[diff] [blame^]459</html>