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gerrit-public.fairphone.software / platform / external / ImageMagick / 3de10e80ee511dd3e9e2eaa6a5d45b1d46ffe13c / . / www / composite.html
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cristy29dc8652015-05-12 16:26:21 +0000[diff] [blame]1<!DOCTYPE html>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]2<html lang="en">
cristyad41c0c2012-10-31 00:49:28 +0000[diff] [blame]3<head>
cristy29f2c972015-07-28 13:37:46 +0000[diff] [blame]4 <title>ImageMagick: Command-line Tools: Composite</title>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]5 <meta http-equiv="content-type" content="text/html; charset=utf-8">
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]6 <meta name="application-name" content="ImageMagick">
7 <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.">
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cristy2f563d42015-05-06 23:36:51 +0000[diff] [blame]17 <meta name="copyright" content="Copyright (c) 1999-2015 ImageMagick Studio LLC">
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cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]19 <meta name="magick-serial" content="P131-S030410-R485315270133-P82224-A6668-G1245-1">
cristy354f1172015-07-29 14:03:48 +0000[diff] [blame]20 <link rel="icon" href="../images/wand.png">
21 <link rel="shortcut icon" href="../images/wand.ico">
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cristyad41c0c2012-10-31 00:49:28 +0000[diff] [blame]23</head>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]24<body>
cristyad41c0c2012-10-31 00:49:28 +0000[diff] [blame]25<div class="main">
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]26<div class="magick-masthead">
27 <div class="container">
cristy29f2c972015-07-28 13:37:46 +0000[diff] [blame]28 <script async src="http://localhost/pagead/js/adsbygoogle.js"></script>
29 <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-3129977114552745" data-ad-slot="6345125851" data-ad-format="auto"></ins>
30 <script>
31 (adsbygoogle = window.adsbygoogle || []).push({});
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]32 </script>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]33 <nav class="magick-nav">
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]34 <a class="magick-nav-item " href="../index.html">Home</a>
cristyea2793e2015-05-31 16:52:26 +0000[diff] [blame]35 <a class="magick-nav-item " href="binary-releases.html">Download</a>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]36 <a class="magick-nav-item " href="command-line-tools.html">Tools</a>
37 <a class="magick-nav-item " href="command-line-options.html">Options</a>
cristyea2793e2015-05-31 16:52:26 +0000[diff] [blame]38 <a class="magick-nav-item " href="resources.html">Resources</a>
39 <a class="magick-nav-item " href="api.html">Develop</a>
cristy5b8fe762015-06-09 16:24:03 +0000[diff] [blame]40 <a class="magick-nav-item " href="http://nextgen.imagemagick.org/script/search.php">Search</a>
cristya1890f02015-05-15 23:32:44 +0000[diff] [blame]41 <a class="magick-nav-item pull-right" href="http://www.imagemagick.org/discourse-server/">Community</a>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]42 </nav>
43 </div>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]44</div>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]45<div class="container">
46<div class="magick-header">
47<p class="text-center"><a href="composite.html#usage">Example Usage</a> • <a href="composite.html#options">Option Summary</a></p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]48
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]49<p class="lead magick-description">Use the <code>composite</code> program to overlap one image over another. See <a href="command-line-processing.html">Command Line Processing</a> for advice on how to structure your <code>composite</code> command or see below for example usages of the command.</p>
50
51<h2 class="magick-header"><a id="usage"></a>Example Usage</h2>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]52
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]53<p>We list a few examples of the <code>composite</code> command here to illustrate its usefulness and ease of use. To get started, lets overlay a smiley face over a rose:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]54
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]55<pre>
56composite -gravity center smile.gif rose: rose-over.png
57</pre>
58
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]59<ul>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]60 <a href="../images/smile.gif"><img src="../images/smile.gif" width="48" height="48" alt="smile"></a>
61 <img src="../images/over.gif" width="56" height="46" alt="over">
62 <a href="../images/rose.jpg"><img src="../images/rose.jpg" width="70" height="46" alt="rose"></a>
63 <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==&gt;">
64 <a href="../images/rose-over.png"><img src="../images/rose-over.png" width="70" height="46" alt="rose"></a>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]65</ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]66
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]67<p>You can create three-dimensional effect with the <var>Atop</var>:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]68
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]69<pre>
70convert -size 70x70 canvas:none -fill red -draw 'circle 35,35 10,30' red-circle.png
71convert -size 70x70 canvas:none -draw 'circle 35,35 35,20' -negate \
72-channel A -gaussian-blur 0x8 white-highlight.png
73composite -compose atop -geometry -13-17 white-highlight.png red-circle.png red-ball.png
74</pre>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]75
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]76<ul>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]77 <a href="../images/white-highlight.png"><img src="../images/white-highlight.png" width="70" height="70" alt="white highlight"></a>
78 <img src="../images/atop.gif" width="56" height="70" alt="atop">
79 <a href="../images/red-circle.png"><img src="../images/red-circle.png" width="70" height="70" alt="red circle"></a>
80 <img style="margin-top:25px; margin-bottom:25px;" src="../images/right.gif" width="20" height="20" alt="==&gt;">
81 <a href="../images/red-ball.png"><img src="../images/red-ball.png" width="70" height="70" alt="red ball"></a>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]82</ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]83
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]84<p>You can find additional examples of using <code>composite</code> in <a href="http://www.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>. You can find out more about them and the mathematics by looking at <a href="http://www.w3.org/TR/SVG12/rendering.html">SVG Alpha Compositing</a></p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]85
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]86<h2 class="magick-header"><a id="options"></a>Option Summary</h2>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]87
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]88<p>The <code>composite</code> command recognizes these options. Click on an option to get more details about how that option works.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]89
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]90<table class="table table-condensed table-striped">
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]91 <tbody>
92 <tr>
93 <th align="left">Option</th>
94 <th align="left">Description</th>
95 </tr>
96
97 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]98 <td><a href="command-line-options.html#affine">-affine <var>matrix</var></a></td>
99 <td>affine transform matrix</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]100 </tr>
101
102 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]103 <td><a href="command-line-options.html#alpha">-alpha</a></td>
104 <td>on, activate, off, deactivate, set, opaque, copy",
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]105transparent, extract, background, or shape the alpha channel</td>
106 </tr>
107
108 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]109 <td><a href="command-line-options.html#authenticate">-authenticate <var>value</var></a></td>
110 <td>decrypt image with this password</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]111 </tr>
112
113 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]114 <td><a href="command-line-options.html#blend">-blend <var>geometry</var></a></td>
115 <td>blend images</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]116 </tr>
117
118 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]119 <td><a href="command-line-options.html#blue-primary">-blue-primary <var>point</var></a></td>
120 <td>chromaticity blue primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]121 </tr>
122
123
124 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]125 <td><a href="command-line-options.html#border">-border <var>geometry</var></a></td>
126 <td>surround image with a border of color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]127 </tr>
128
129 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]130 <td><a href="command-line-options.html#bordercolor">-bordercolor <var>color</var></a></td>
131 <td>border color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]132 </tr>
133
134 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]135 <td><a href="command-line-options.html#channel">-channel <var>type</var></a></td>
136 <td>apply option to select image channels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]137 </tr>
138
139 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]140 <td><a href="command-line-options.html#colors">-colors <var>value</var></a></td>
141 <td>preferred number of colors in the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]142 </tr>
143
144 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]145 <td><a href="command-line-options.html#colorspace">-colorspace <var>type</var></a></td>
146 <td>set image colorspace</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]147 </tr>
148
149 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]150 <td><a href="command-line-options.html#comment">-comment <var>string</var></a></td>
151 <td>annotate image with comment</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]152 </tr>
153
154 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]155 <td><a href="command-line-options.html#compose">-compose <var>operator</var></a></td>
156 <td>set image composite operator</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]157 </tr>
158
159 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]160 <td><a href="command-line-options.html#compress">-compress <var>type</var></a></td>
161 <td>image compression type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]162 </tr>
163
164 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]165 <td><a href="command-line-options.html#debug">-debug <var>events</var></a></td>
166 <td>display copious debugging information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]167 </tr>
168
169 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]170 <td><a href="command-line-options.html#decipher">-decipher <var>filename</var></a></td>
171 <td>convert cipher pixels to plain</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]172 </tr>
173
174 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]175 <td><a href="command-line-options.html#define">-define <var>format:option</var></a></td>
176 <td>define one or more image format options</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]177 </tr>
178
179 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]180 <td><a href="command-line-options.html#density">-density <var>geometry</var></a></td>
181 <td>horizontal and vertical density of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]182 </tr>
183
184 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]185 <td><a href="command-line-options.html#depth">-depth <var>value</var></a></td>
186 <td>image depth</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]187 </tr>
188
189 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]190 <td><a href="command-line-options.html#displace">-displace <var>geometry</var></a></td>
191 <td>shift image pixels defined by a displacement map</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]192 </tr>
193
194 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]195 <td><a href="command-line-options.html#dissolve">-dissolve <var>value</var></a></td>
196 <td>dissolve the two images a given percent</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]197 </tr>
198
199 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]200 <td><a href="command-line-options.html#dither">-dither <var>method</var></a></td>
201 <td>apply error diffusion to image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]202 </tr>
203
204 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]205 <td><a href="command-line-options.html#encipher">-encipher <var>filename</var></a></td>
206 <td>convert plain pixels to cipher pixels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]207 </tr>
208
209 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]210 <td><a href="command-line-options.html#encoding">-encoding <var>type</var></a></td>
211 <td>text encoding type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]212 </tr>
213
214 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]215 <td><a href="command-line-options.html#endian">-endian <var>type</var></a></td>
216 <td>endianness (MSB or LSB) of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]217 </tr>
218
219 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]220 <td><a href="command-line-options.html#extract">-extract <var>geometry</var></a></td>
221 <td>extract area from image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]222 </tr>
223
224 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]225 <td><a href="command-line-options.html#filter">-filter <var>type</var></a></td>
226 <td>use this filter when resizing an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]227 </tr>
228
229 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]230 <td><a href="command-line-options.html#font">-font <var>name</var></a></td>
231 <td>render text with this font</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]232 </tr>
233
234 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]235 <td><a href="command-line-options.html#geometry">-geometry <var>geometry</var></a></td>
236 <td>preferred size or location of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]237 </tr>
238
239 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]240 <td><a href="command-line-options.html#gravity">-gravity <var>type</var></a></td>
241 <td>horizontal and vertical text placement</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]242 </tr>
243
244 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]245 <td><a href="command-line-options.html#green-primary">-green-primary <var>point</var></a></td>
246 <td>chromaticity green primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]247 </tr>
248
249 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]250 <td><a href="command-line-options.html#help">-help</a></td>
251 <td>print program options</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]252 </tr>
253
254 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]255 <td><a href="command-line-options.html#identify">-identify</a></td>
256 <td>identify the format and characteristics of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]257 </tr>
258
259 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]260 <td><a href="command-line-options.html#interlace">-interlace <var>type</var></a></td>
261 <td>type of image interlacing scheme</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]262 </tr>
263
264 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]265 <td><a href="command-line-options.html#interpolate">-interpolate <var>method</var></a></td>
266 <td>pixel color interpolation method</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]267 </tr>
268
269 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]270 <td><a href="command-line-options.html#label">-label <var>string</var></a></td>
271 <td>assign a label to an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]272 </tr>
273
274 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]275 <td><a href="command-line-options.html#level">-level <var>value</var></a></td>
276 <td>adjust the level of image contrast</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]277 </tr>
278
279 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]280 <td><a href="command-line-options.html#limit">-limit <var>type value</var></a></td>
281 <td>pixel cache resource limit</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]282 </tr>
283
284 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]285 <td><a href="command-line-options.html#log">-log <var>format</var></a></td>
286 <td>format of debugging information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]287 </tr>
288
289 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]290 <td><a href="command-line-options.html#monitor">-monitor</a></td>
291 <td>monitor progress</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]292 </tr>
293
294 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]295 <td><a href="command-line-options.html#monochrome">-monochrome</a></td>
296 <td>transform image to black and white</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]297 </tr>
298
299 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]300 <td><a href="command-line-options.html#negate">-negate</a></td>
301 <td>replace each pixel with its complementary color </td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]302 </tr>
303
304 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]305 <td><a href="command-line-options.html#page">-page <var>geometry</var></a></td>
306 <td>size and location of an image canvas (setting)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]307 </tr>
308
309 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]310 <td><a href="command-line-options.html#pointsize">-pointsize <var>value</var></a></td>
311 <td>font point size</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]312 </tr>
313
314 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]315 <td><a href="command-line-options.html#profile">-profile <var>filename</var></a></td>
316 <td>add, delete, or apply an image profile</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]317 </tr>
318
319 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]320 <td><a href="command-line-options.html#quality">-quality <var>value</var></a></td>
321 <td>JPEG/MIFF/PNG compression level</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]322 </tr>
323
324 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]325 <td><a href="command-line-options.html#quantize">-quantize <var>colorspace</var></a></td>
326 <td>reduce image colors in this colorspace</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]327 </tr>
328
329 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]330 <td><a href="command-line-options.html#quiet">-quiet</a></td>
331 <td>suppress all warning messages</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]332 </tr>
333
334 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]335 <td><a href="command-line-options.html#red-primary">-red-primary <var>point</var></a></td>
336 <td>chromaticity red primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]337 </tr>
338
339 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]340 <td><a href="command-line-options.html#regard-warnings">-regard-warnings</a></td>
341 <td>pay attention to warning messages.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]342 </tr>
343
344 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]345 <td><a href="command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
346 <td>settings remain in effect until parenthesis boundary.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]347 </tr>
348
349 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]350 <td><a href="command-line-options.html#rotate">-rotate <var>degrees</var></a></td>
351 <td>apply Paeth rotation to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]352 </tr>
353
354 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]355 <td><a href="command-line-options.html#sampling-factor">-sampling-factor <var>geometry</var></a></td>
356 <td>horizontal and vertical sampling factor</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]357 </tr>
358
359 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]360 <td><a href="command-line-options.html#scene">-scene <var>value</var></a></td>
361 <td>image scene number</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]362 </tr>
363
364 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]365 <td><a href="command-line-options.html#seed">-seed <var>value</var></a></td>
366 <td>seed a new sequence of pseudo-random numbers</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]367 </tr>
368
369 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]370 <td><a href="command-line-options.html#set">-set <var>attribute value</var></a></td>
371 <td>set an image attribute</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]372 </tr>
373
374 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]375 <td><a href="command-line-options.html#sharpen">-sharpen <var>geometry</var></a></td>
376 <td>sharpen the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]377 </tr>
378
379 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]380 <td><a href="command-line-options.html#shave">-shave <var>geometry</var></a></td>
381 <td>shave pixels from the image edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]382 </tr>
383
384 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]385 <td><a href="command-line-options.html#size">-size <var>geometry</var></a></td>
386 <td>width and height of image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]387 </tr>
388
389 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]390 <td><a href="command-line-options.html#stegano">-stegano <var>offset</var></a></td>
391 <td>hide watermark within an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]392 </tr>
393
394 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]395 <td><a href="command-line-options.html#stereo">-stereo <var>geometry</var></a></td>
396 <td>combine two image to create a stereo anaglyph</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]397 </tr>
398
399 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]400 <td><a href="command-line-options.html#strip">-strip</a></td>
401 <td>strip image of all profiles and comments</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]402 </tr>
403
404 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]405 <td><a href="command-line-options.html#swap">-swap <var>indexes</var></a></td>
406 <td>swap two images in the image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]407 </tr>
408
409 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]410 <td><a href="command-line-options.html#synchronize">-synchronize</a></td>
411 <td>synchronize image to storage device</td>
cristy5063d812010-10-19 16:28:10 +0000[diff] [blame]412 </tr>
413
414 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]415 <td><a href="command-line-options.html#taint">-taint</a></td>
416 <td>mark the image as modified</td>
cristy5063d812010-10-19 16:28:10 +0000[diff] [blame]417 </tr>
418
419 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]420 <td><a href="command-line-options.html#thumbnail">-thumbnail <var>geometry</var></a></td>
421 <td>create a thumbnail of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]422 </tr>
423
424 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]425 <td><a href="command-line-options.html#tile">-tile</a></td>
426 <td>repeat composite operation across and down image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]427 </tr>
428
429 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]430 <td><a href="command-line-options.html#transform">-transform</a></td>
431 <td>affine transform image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]432 </tr>
433
434 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]435 <td><a href="command-line-options.html#transparent-color">-transparent-color <var>color</var></a></td>
436 <td>transparent color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]437 </tr>
438
439 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]440 <td><a href="command-line-options.html#treedepth">-treedepth <var>value</var></a></td>
441 <td>color tree depth</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]442 </tr>
443
444 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]445 <td><a href="command-line-options.html#type">-type <var>type</var></a></td>
446 <td>image type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]447 </tr>
448
449 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]450 <td><a href="command-line-options.html#units">-units <var>type</var></a></td>
451 <td>the units of image resolution</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]452 </tr>
453
454 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]455 <td><a href="command-line-options.html#unsharp">-unsharp <var>geometry</var></a></td>
456 <td>sharpen the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]457 </tr>
458
459 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]460 <td><a href="command-line-options.html#verbose">-verbose</a></td>
461 <td>print detailed information about the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]462 </tr>
463
464 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]465 <td><a href="command-line-options.html#version">-version</a></td>
466 <td>print version information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]467 </tr>
468
469 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]470 <td><a href="command-line-options.html#virtual-pixel">-virtual-pixel <var>method</var></a></td>
471 <td>access method for pixels outside the boundaries of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]472 </tr>
473
474 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]475 <td><a href="command-line-options.html#watermark">-watermark <var>geometry</var></a></td>
476 <td>percent brightness and saturation of a watermark</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]477 </tr>
478
479 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]480 <td><a href="command-line-options.html#white-point">-white-point <var>point</var></a></td>
481 <td>chromaticity white point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]482 </tr>
483
484 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]485 <td><a href="command-line-options.html#white-threshold">-white-threshold <var>value</var></a></td>
486 <td>force all pixels above the threshold into white</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]487 </tr>
488
489 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]490 <td><a href="command-line-options.html#write">-write <var>filename</var></a></td>
491 <td>write images to this file</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]492 </tr>
493
494 </tbody>
495</table>
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503 <p><a href="composite.html#">Back to top</a> •
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