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gerrit-public.fairphone.software / platform / external / ImageMagick / b1924a1bcbf7c81156070a8c9d6d826b6211d4a3 / . / www / composite.html
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Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]1
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cristy29dc8652015-05-12 16:26:21 +0000[diff] [blame]5<!DOCTYPE html>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]6<html lang="en">
cristyad41c0c2012-10-31 00:49:28 +0000[diff] [blame]7<head>
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]8 <meta name="google-site-verification" content="_bMOCDpkx9ZAzBwb2kF3PRHbfUUdFj2uO8Jd1AXArz4" />
cristy29f2c972015-07-28 13:37:46 +0000[diff] [blame]9 <title>ImageMagick: Command-line Tools: Composite</title>
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]10 <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
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="command-line, tools:, composite, 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"/>
Cristyce4a3552015-12-14 13:53:35 -0500[diff] [blame]22 <meta name="copyright" content="Copyright (c) 1999-2015 ImageMagick Studio LLC"/>
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]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"/>
Cristyce4a3552015-12-14 13:53:35 -0500[diff] [blame]27 <link rel="stylesheet" href="css/magick.css"/>
cristyad41c0c2012-10-31 00:49:28 +0000[diff] [blame]28</head>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]29<body>
cristyad41c0c2012-10-31 00:49:28 +0000[diff] [blame]30<div class="main">
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]31<div class="magick-masthead">
32 <div class="container">
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]33 <script async="async" src="http://localhost/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle"
34 style="display:block"
35 data-ad-client="ca-pub-3129977114552745"
36 data-ad-slot="6345125851"
37 data-ad-format="auto"></ins>
cristy29f2c972015-07-28 13:37:46 +0000[diff] [blame]38 <script>
Cristy542697a2015-10-12 20:10:32 -0400[diff] [blame]39 (adsbygoogle = window.adsbygoogle || []).push({});
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]40 </script>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]41 <nav class="magick-nav">
cristy44443b92015-05-05 00:06:07 +0000[diff] [blame]42 <a class="magick-nav-item " href="../index.html">Home</a>
cristyea2793e2015-05-31 16:52:26 +0000[diff] [blame]43 <a class="magick-nav-item " href="binary-releases.html">Download</a>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]44 <a class="magick-nav-item " href="command-line-tools.html">Tools</a>
Cristye93be682015-11-26 09:07:51 -0500[diff] [blame]45 <a class="magick-nav-item " href="command-line-processing.html">Command-line</a>
cristyea2793e2015-05-31 16:52:26 +0000[diff] [blame]46 <a class="magick-nav-item " href="resources.html">Resources</a>
47 <a class="magick-nav-item " href="api.html">Develop</a>
cristy5b8fe762015-06-09 16:24:03 +0000[diff] [blame]48 <a class="magick-nav-item " href="http://nextgen.imagemagick.org/script/search.php">Search</a>
cristya1890f02015-05-15 23:32:44 +0000[diff] [blame]49 <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]50 </nav>
51 </div>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]52</div>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]53<div class="container">
54<div class="magick-header">
55<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]56
Cristyce4a3552015-12-14 13:53:35 -0500[diff] [blame]57<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>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]58
59<h2 class="magick-header"><a id="usage"></a>Example Usage</h2>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]60
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]61<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]62
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]63<pre>
64composite -gravity center smile.gif rose: rose-over.png
65</pre>
66
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]67<ul>
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]68 <a href="../images/smile.gif"><img src="../images/smile.gif" width="48" height="48" alt="smile" /></a>
69 <img src="../images/over.gif" width="56" height="46" alt="over" />
70 <a href="../images/rose.jpg"><img src="../images/rose.jpg" width="70" height="46" alt="rose" /></a>
71 <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" />
72 <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]73</ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]74
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]75<p>You can create three-dimensional effect with the <var>Atop</var>:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]76
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]77<pre>
78convert -size 70x70 canvas:none -fill red -draw 'circle 35,35 10,30' red-circle.png
79convert -size 70x70 canvas:none -draw 'circle 35,35 35,20' -negate \
80-channel A -gaussian-blur 0x8 white-highlight.png
81composite -compose atop -geometry -13-17 white-highlight.png red-circle.png red-ball.png
82</pre>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]83
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]84<ul>
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]85 <a href="../images/white-highlight.png"><img src="../images/white-highlight.png" width="70" height="70" alt="white highlight" /></a>
86 <img src="../images/atop.gif" width="56" height="70" alt="atop" />
87 <a href="../images/red-circle.png"><img src="../images/red-circle.png" width="70" height="70" alt="red circle" /></a>
88 <img style="margin-top:25px; margin-bottom:25px;" src="../images/right.gif" width="20" height="20" alt="==>" />
89 <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]90</ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]91
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]92<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]93
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]94<h2 class="magick-header"><a id="options"></a>Option Summary</h2>
cristy751980d2012-06-03 23:18:35 +0000[diff] [blame]95
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]96<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]97
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]98<table class="table table-condensed table-striped">
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]99 <tbody>
100 <tr>
101 <th align="left">Option</th>
102 <th align="left">Description</th>
103 </tr>
104
105 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]106 <td><a href="command-line-options.html#affine">-affine <var>matrix</var></a></td>
107 <td>affine transform matrix</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]108 </tr>
109
110 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]111 <td><a href="command-line-options.html#alpha">-alpha</a></td>
112 <td>on, activate, off, deactivate, set, opaque, copy",
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]113transparent, extract, background, or shape the alpha channel</td>
114 </tr>
115
116 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]117 <td><a href="command-line-options.html#authenticate">-authenticate <var>value</var></a></td>
118 <td>decrypt image with this password</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]119 </tr>
120
121 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]122 <td><a href="command-line-options.html#blend">-blend <var>geometry</var></a></td>
123 <td>blend images</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]124 </tr>
125
126 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]127 <td><a href="command-line-options.html#blue-primary">-blue-primary <var>point</var></a></td>
128 <td>chromaticity blue primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]129 </tr>
130
131
132 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]133 <td><a href="command-line-options.html#border">-border <var>geometry</var></a></td>
134 <td>surround image with a border of color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]135 </tr>
136
137 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]138 <td><a href="command-line-options.html#bordercolor">-bordercolor <var>color</var></a></td>
139 <td>border color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]140 </tr>
141
142 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]143 <td><a href="command-line-options.html#channel">-channel <var>type</var></a></td>
144 <td>apply option to select image channels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]145 </tr>
146
147 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]148 <td><a href="command-line-options.html#colors">-colors <var>value</var></a></td>
149 <td>preferred number of colors in the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]150 </tr>
151
152 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]153 <td><a href="command-line-options.html#colorspace">-colorspace <var>type</var></a></td>
154 <td>set image colorspace</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]155 </tr>
156
157 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]158 <td><a href="command-line-options.html#comment">-comment <var>string</var></a></td>
159 <td>annotate image with comment</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]160 </tr>
161
162 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]163 <td><a href="command-line-options.html#compose">-compose <var>operator</var></a></td>
164 <td>set image composite operator</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]165 </tr>
166
167 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]168 <td><a href="command-line-options.html#compress">-compress <var>type</var></a></td>
169 <td>image compression type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]170 </tr>
171
172 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]173 <td><a href="command-line-options.html#debug">-debug <var>events</var></a></td>
174 <td>display copious debugging information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]175 </tr>
176
177 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]178 <td><a href="command-line-options.html#decipher">-decipher <var>filename</var></a></td>
179 <td>convert cipher pixels to plain</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]180 </tr>
181
182 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]183 <td><a href="command-line-options.html#define">-define <var>format:option</var></a></td>
184 <td>define one or more image format options</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]185 </tr>
186
187 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]188 <td><a href="command-line-options.html#density">-density <var>geometry</var></a></td>
189 <td>horizontal and vertical density of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]190 </tr>
191
192 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]193 <td><a href="command-line-options.html#depth">-depth <var>value</var></a></td>
194 <td>image depth</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]195 </tr>
196
197 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]198 <td><a href="command-line-options.html#displace">-displace <var>geometry</var></a></td>
199 <td>shift image pixels defined by a displacement map</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]200 </tr>
201
202 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]203 <td><a href="command-line-options.html#dissolve">-dissolve <var>value</var></a></td>
204 <td>dissolve the two images a given percent</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]205 </tr>
206
207 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]208 <td><a href="command-line-options.html#dither">-dither <var>method</var></a></td>
209 <td>apply error diffusion to image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]210 </tr>
211
212 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]213 <td><a href="command-line-options.html#encipher">-encipher <var>filename</var></a></td>
214 <td>convert plain pixels to cipher pixels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]215 </tr>
216
217 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]218 <td><a href="command-line-options.html#encoding">-encoding <var>type</var></a></td>
219 <td>text encoding type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]220 </tr>
221
222 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]223 <td><a href="command-line-options.html#endian">-endian <var>type</var></a></td>
224 <td>endianness (MSB or LSB) of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]225 </tr>
226
227 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]228 <td><a href="command-line-options.html#extract">-extract <var>geometry</var></a></td>
229 <td>extract area from image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]230 </tr>
231
232 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]233 <td><a href="command-line-options.html#filter">-filter <var>type</var></a></td>
234 <td>use this filter when resizing an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]235 </tr>
236
237 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]238 <td><a href="command-line-options.html#font">-font <var>name</var></a></td>
239 <td>render text with this font</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]240 </tr>
241
242 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]243 <td><a href="command-line-options.html#geometry">-geometry <var>geometry</var></a></td>
244 <td>preferred size or location of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]245 </tr>
246
247 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]248 <td><a href="command-line-options.html#gravity">-gravity <var>type</var></a></td>
249 <td>horizontal and vertical text placement</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]250 </tr>
251
252 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]253 <td><a href="command-line-options.html#green-primary">-green-primary <var>point</var></a></td>
254 <td>chromaticity green primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]255 </tr>
256
257 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]258 <td><a href="command-line-options.html#help">-help</a></td>
259 <td>print program options</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]260 </tr>
261
262 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]263 <td><a href="command-line-options.html#identify">-identify</a></td>
264 <td>identify the format and characteristics of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]265 </tr>
266
267 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]268 <td><a href="command-line-options.html#interlace">-interlace <var>type</var></a></td>
269 <td>type of image interlacing scheme</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]270 </tr>
271
272 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]273 <td><a href="command-line-options.html#interpolate">-interpolate <var>method</var></a></td>
274 <td>pixel color interpolation method</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]275 </tr>
276
277 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]278 <td><a href="command-line-options.html#label">-label <var>string</var></a></td>
279 <td>assign a label to an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]280 </tr>
281
282 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]283 <td><a href="command-line-options.html#level">-level <var>value</var></a></td>
284 <td>adjust the level of image contrast</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]285 </tr>
286
287 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]288 <td><a href="command-line-options.html#limit">-limit <var>type value</var></a></td>
289 <td>pixel cache resource limit</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]290 </tr>
291
292 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]293 <td><a href="command-line-options.html#log">-log <var>format</var></a></td>
294 <td>format of debugging information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]295 </tr>
296
297 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]298 <td><a href="command-line-options.html#monitor">-monitor</a></td>
299 <td>monitor progress</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]300 </tr>
301
302 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]303 <td><a href="command-line-options.html#monochrome">-monochrome</a></td>
304 <td>transform image to black and white</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]305 </tr>
306
307 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]308 <td><a href="command-line-options.html#negate">-negate</a></td>
309 <td>replace each pixel with its complementary color </td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]310 </tr>
311
312 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]313 <td><a href="command-line-options.html#page">-page <var>geometry</var></a></td>
314 <td>size and location of an image canvas (setting)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]315 </tr>
316
317 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]318 <td><a href="command-line-options.html#pointsize">-pointsize <var>value</var></a></td>
319 <td>font point size</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]320 </tr>
321
322 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]323 <td><a href="command-line-options.html#profile">-profile <var>filename</var></a></td>
324 <td>add, delete, or apply an image profile</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]325 </tr>
326
327 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]328 <td><a href="command-line-options.html#quality">-quality <var>value</var></a></td>
329 <td>JPEG/MIFF/PNG compression level</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]330 </tr>
331
332 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]333 <td><a href="command-line-options.html#quantize">-quantize <var>colorspace</var></a></td>
334 <td>reduce image colors in this colorspace</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]335 </tr>
336
337 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]338 <td><a href="command-line-options.html#quiet">-quiet</a></td>
339 <td>suppress all warning messages</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]340 </tr>
341
342 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]343 <td><a href="command-line-options.html#red-primary">-red-primary <var>point</var></a></td>
344 <td>chromaticity red primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]345 </tr>
346
347 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]348 <td><a href="command-line-options.html#regard-warnings">-regard-warnings</a></td>
349 <td>pay attention to warning messages.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]350 </tr>
351
352 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]353 <td><a href="command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
354 <td>settings remain in effect until parenthesis boundary.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]355 </tr>
356
357 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]358 <td><a href="command-line-options.html#rotate">-rotate <var>degrees</var></a></td>
359 <td>apply Paeth rotation to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]360 </tr>
361
362 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]363 <td><a href="command-line-options.html#sampling-factor">-sampling-factor <var>geometry</var></a></td>
364 <td>horizontal and vertical sampling factor</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]365 </tr>
366
367 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]368 <td><a href="command-line-options.html#scene">-scene <var>value</var></a></td>
369 <td>image scene number</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]370 </tr>
371
372 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]373 <td><a href="command-line-options.html#seed">-seed <var>value</var></a></td>
374 <td>seed a new sequence of pseudo-random numbers</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]375 </tr>
376
377 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]378 <td><a href="command-line-options.html#set">-set <var>attribute value</var></a></td>
379 <td>set an image attribute</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]380 </tr>
381
382 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]383 <td><a href="command-line-options.html#sharpen">-sharpen <var>geometry</var></a></td>
384 <td>sharpen the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]385 </tr>
386
387 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]388 <td><a href="command-line-options.html#shave">-shave <var>geometry</var></a></td>
389 <td>shave pixels from the image edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]390 </tr>
391
392 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]393 <td><a href="command-line-options.html#size">-size <var>geometry</var></a></td>
394 <td>width and height of image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]395 </tr>
396
397 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]398 <td><a href="command-line-options.html#stegano">-stegano <var>offset</var></a></td>
399 <td>hide watermark within an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]400 </tr>
401
402 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]403 <td><a href="command-line-options.html#stereo">-stereo <var>geometry</var></a></td>
404 <td>combine two image to create a stereo anaglyph</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]405 </tr>
406
407 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]408 <td><a href="command-line-options.html#strip">-strip</a></td>
409 <td>strip image of all profiles and comments</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]410 </tr>
411
412 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]413 <td><a href="command-line-options.html#swap">-swap <var>indexes</var></a></td>
414 <td>swap two images in the image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]415 </tr>
416
417 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]418 <td><a href="command-line-options.html#synchronize">-synchronize</a></td>
419 <td>synchronize image to storage device</td>
cristy5063d812010-10-19 16:28:10 +0000[diff] [blame]420 </tr>
421
422 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]423 <td><a href="command-line-options.html#taint">-taint</a></td>
424 <td>mark the image as modified</td>
cristy5063d812010-10-19 16:28:10 +0000[diff] [blame]425 </tr>
426
427 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]428 <td><a href="command-line-options.html#thumbnail">-thumbnail <var>geometry</var></a></td>
429 <td>create a thumbnail of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]430 </tr>
431
432 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]433 <td><a href="command-line-options.html#tile">-tile</a></td>
434 <td>repeat composite operation across and down image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]435 </tr>
436
437 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]438 <td><a href="command-line-options.html#transform">-transform</a></td>
439 <td>affine transform image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]440 </tr>
441
442 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]443 <td><a href="command-line-options.html#transparent-color">-transparent-color <var>color</var></a></td>
444 <td>transparent color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]445 </tr>
446
447 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]448 <td><a href="command-line-options.html#treedepth">-treedepth <var>value</var></a></td>
449 <td>color tree depth</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]450 </tr>
451
452 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]453 <td><a href="command-line-options.html#type">-type <var>type</var></a></td>
454 <td>image type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]455 </tr>
456
457 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]458 <td><a href="command-line-options.html#units">-units <var>type</var></a></td>
459 <td>the units of image resolution</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]460 </tr>
461
462 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]463 <td><a href="command-line-options.html#unsharp">-unsharp <var>geometry</var></a></td>
464 <td>sharpen the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]465 </tr>
466
467 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]468 <td><a href="command-line-options.html#verbose">-verbose</a></td>
469 <td>print detailed information about the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]470 </tr>
471
472 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]473 <td><a href="command-line-options.html#version">-version</a></td>
474 <td>print version information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]475 </tr>
476
477 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]478 <td><a href="command-line-options.html#virtual-pixel">-virtual-pixel <var>method</var></a></td>
479 <td>access method for pixels outside the boundaries of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]480 </tr>
481
482 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]483 <td><a href="command-line-options.html#watermark">-watermark <var>geometry</var></a></td>
484 <td>percent brightness and saturation of a watermark</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]485 </tr>
486
487 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]488 <td><a href="command-line-options.html#white-point">-white-point <var>point</var></a></td>
489 <td>chromaticity white point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]490 </tr>
491
492 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]493 <td><a href="command-line-options.html#white-threshold">-white-threshold <var>value</var></a></td>
494 <td>force all pixels above the threshold into white</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]495 </tr>
496
497 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]498 <td><a href="command-line-options.html#write">-write <var>filename</var></a></td>
499 <td>write images to this file</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]500 </tr>
501
502 </tbody>
503</table>
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