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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>
Cristybbb69882017-06-30 10:13:32 -0400[diff] [blame]8 <meta charset="utf-8" />
9 <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
Cristy6549abb2016-11-10 08:25:55 -0500[diff] [blame]10 <title>Command-line Tools: Convert @ ImageMagick</title>
Cristybbb69882017-06-30 10:13:32 -0400[diff] [blame]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." />
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Cristybbb69882017-06-30 10:13:32 -0400[diff] [blame]26 <link href="https://www.imagemagick.org/script/convert.html" rel="canonical" />
27 <link href="../images/wand.png" rel="icon" />
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cristyad41c0c2012-10-31 00:49:28 +0000[diff] [blame]30</head>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]31<body>
Cristybbb69882017-06-30 10:13:32 -0400[diff] [blame]32<div class="magick-masthead">
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]33 <div class="container">
Cristy6549abb2016-11-10 08:25:55 -0500[diff] [blame]34 <script async="async" src="http://localhost/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle"
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cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]41 </script>
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]42 <nav class="nav magick-nav">
43 <a class="nav-link " href="../index.html">Home</a>
44 <a class="nav-link " href="download.html">Download</a>
45 <a class="nav-link " href="command-line-tools.html">Tools</a>
46 <a class="nav-link " href="command-line-processing.html">Command-line</a>
47 <a class="nav-link " href="resources.html">Resources</a>
48 <a class="nav-link " href="develop.html">Develop</a>
49 <a class="nav-link " href="https://www.imagemagick.org/script/search.php">Search</a>
50 <a class="nav-link float-right" href="https://www.imagemagick.org/discourse-server/">Community</a>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]51 </nav>
52 </div>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]53</div>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]54<div class="container">
55<div class="magick-header">
Cristyce4a3552015-12-14 13:53:35 -0500[diff] [blame]56<p class="lead magick-description">Use the <code>convert</code> program to convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more. See <a href="command-line-processing.html">Command Line Processing</a> for advice on how to structure your <code>convert</code> command or see below for example usages of the command.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]57
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]58<p>We list a few examples of the <code>convert</code> command here to illustrate its usefulness and ease of use. To get started, lets convert an image in the JPEG format to PNG:</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]59
Cristy5bf67322017-10-08 11:28:40 -0400[diff] [blame]60<pre class="highlight"><code>magick convert rose.jpg rose.png
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]61</code></pre>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]62
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]63<p>Next, we reduce the image size before it is written to the PNG format:</p>
64
Cristy5bf67322017-10-08 11:28:40 -0400[diff] [blame]65<pre class="highlight"><code>magick convert rose.jpg -resize 50% rose.png
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]66</code></pre>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]67
68<ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]69 <a href="../images/rose.jpg">
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]70 <img src="../images/rose.jpg" width="70" height="46" alt="rose" />
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]71 </a>
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]72 <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" />
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]73 <a href="../images/rose.png">
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]74 <img style="margin-top:11px; margin-bottom:12px;" src="../images/rose.png" width="35" height="23" alt="rose" />
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]75 </a>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]76</ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]77
78<p>You can combine multiple image-processing operations to produce complex results:</p>
79
Cristy5bf67322017-10-08 11:28:40 -0400[diff] [blame]80<pre class="highlight"><code>magick convert -size 320x85 canvas:none -font Bookman-DemiItalic -pointsize 72 \
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]81 -draw "text 25,60 \'Magick\'" -channel RGBA -blur 0x6 -fill darkred -stroke magenta \
82 -draw "text 20,55 \'Magick\'" fuzzy-magick.png
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]83</code></pre>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]84
85<ul>
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]86 <a href="../images/fuzzy-magick.png"><img src="../images/fuzzy-magick.png" width="320" height="85" alt="fuzzy-magick" /></a>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]87</ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]88
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]89<p>or here we resize an image with improved quality:</p>
90
Cristy5bf67322017-10-08 11:28:40 -0400[diff] [blame]91<pre class="highlight"><code>magick convert input.png -colorspace RGB +sigmoidal-contrast 11.6933 \
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]92 -define filter:filter=Sinc -define filter:window=Jinc -define filter:lobes=3 \
93 -resize 400% -sigmoidal-contrast 11.6933 -colorspace sRGB output.png');
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]94</code></pre>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]95
Cristy364a72f2016-11-04 22:38:41 -0400[diff] [blame]96<p>You can find additional examples of using <code>convert</code> in <a href="https://www.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>.</p>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]97
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]98<h2 class="magick-post-title"><a id="options"></a>Option Summary</h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]99
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]100<p>The <code>convert</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]101
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]102<div class="table-responsive">
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]103<table class="table table-sm table-striped">
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]104 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]105 <td><a href="command-line-options.html#adaptive-blur">-adaptive-blur <var>geometry</var></a></td>
106 <td>adaptively blur pixels; decrease effect near edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]107 </tr>
108
109 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]110 <td><a href="command-line-options.html#adaptive-resize">-adaptive-resize <var>geometry</var></a></td>
111 <td>adaptively resize image with data dependent triangulation.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]112 </tr>
113
114 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]115 <td><a href="command-line-options.html#adaptive-sharpen">-adaptive-sharpen <var>geometry</var></a></td>
116 <td>adaptively sharpen pixels; increase effect near edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]117 </tr>
118
119 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]120 <td><a href="command-line-options.html#adjoin">-adjoin</a></td>
121 <td>join images into a single multi-image file</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]122 </tr>
123
124 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]125 <td><a href="command-line-options.html#affine">-affine <var>matrix</var></a></td>
126 <td>affine transform matrix</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#alpha">-alpha</a></td>
131 <td>on, activate, off, deactivate, set, opaque, copy",
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]132transparent, extract, background, or shape the alpha channel</td>
133 </tr>
134
135 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]136 <td><a href="command-line-options.html#annotate">-annotate <var>geometry text</var></a></td>
137 <td>annotate the image with text</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]138 </tr>
139
140 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]141 <td><a href="command-line-options.html#antialias">-antialias</a></td>
142 <td>remove pixel-aliasing</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]143 </tr>
144
145 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]146 <td><a href="command-line-options.html#append">-append</a></td>
147 <td>append an image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]148 </tr>
149
150 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]151 <td><a href="command-line-options.html#authenticate">-authenticate <var>value</var></a></td>
152 <td>decipher image with this password</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]153 </tr>
154
155 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]156 <td><a href="command-line-options.html#auto-gamma">-auto-gamma</a></td>
157 <td>automagically adjust gamma level of image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]158 </tr>
159
160 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]161 <td><a href="command-line-options.html#auto-level">-auto-level</a></td>
162 <td>automagically adjust color levels of image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]163 </tr>
164
165 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]166 <td><a href="command-line-options.html#auto-orient">-auto-orient</a></td>
167 <td>automagically orient image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]168 </tr>
169
170 <tr>
Cristy51f5e902017-07-03 10:38:30 -0400[diff] [blame]171 <td><a href="command-line-options.html#auto-threshold">-auto-threshold <var>method</var></a></td>
172 <td>automatically perform image thresholding</td>
173 </tr>
174
175 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]176 <td><a href="command-line-options.html#background">-background <var>color</var></a></td>
177 <td>background color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]178 </tr>
179
180 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]181 <td><a href="command-line-options.html#bench">-bench <var>iterations</var></a></td>
182 <td>measure performance</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]183 </tr>
184
185 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]186 <td><a href="command-line-options.html#bias">-bias <var>value</var></a></td>
187 <td>add bias when convolving an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]188 </tr>
189
190 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]191 <td><a href="command-line-options.html#black-threshold">-black-threshold <var>value</var></a></td>
192 <td>force all pixels below the threshold into black</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]193 </tr>
194
195 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]196 <td><a href="command-line-options.html#blue-primary">-blue-primary <var>point</var></a></td>
197 <td>chromaticity blue primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]198 </tr>
199
200 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]201 <td><a href="command-line-options.html#blue-shift">-blue-shift <var>factor</var></a></td>
202 <td>simulate a scene at nighttime in the moonlight</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]203 </tr>
204
205 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]206 <td><a href="command-line-options.html#blur">-blur <var>geometry</var></a></td>
207 <td>reduce image noise and reduce detail levels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]208 </tr>
209
210 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]211 <td><a href="command-line-options.html#border">-border <var>geometry</var></a></td>
212 <td>surround image with a border of color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]213 </tr>
214
215 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]216 <td><a href="command-line-options.html#bordercolor">-bordercolor <var>color</var></a></td>
217 <td>border color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]218 </tr>
219
220 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]221 <td><a href="command-line-options.html#brightness-contrast">-brightness-contrast <var>geometry</var></a></td>
222 <td>improve brightness / contrast of the image</td>
cristy16ff93c2010-01-13 23:18:07 +0000[diff] [blame]223 </tr>
224
225 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]226 <td><a href="command-line-options.html#canny">-canny <var>geometry</var></a></td>
227 <td>use a multi-stage algorithm to detect a wide range of edges in the image</td>
cristy91469932014-07-25 11:00:25 +0000[diff] [blame]228 </tr>
229
230 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]231 <td><a href="command-line-options.html#caption">-caption <var>string</var></a></td>
232 <td>assign a caption to an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]233 </tr>
234
235 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]236 <td><a href="command-line-options.html#cdl">-cdl <var>filename</var></a></td>
237 <td>color correct with a color decision list</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]238 </tr>
239
240 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]241 <td><a href="command-line-options.html#channel">-channel <var>type</var></a></td>
242 <td>apply option to select image channels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]243 </tr>
244
245 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]246 <td><a href="command-line-options.html#charcoal">-charcoal <var>radius</var></a></td>
247 <td>simulate a charcoal drawing</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]248 </tr>
249
250 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]251 <td><a href="command-line-options.html#chop">-chop <var>geometry</var></a></td>
252 <td>remove pixels from the image interior</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]253 </tr>
254
255 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]256 <td><a href="command-line-options.html#clamp">-clamp</a></td>
257 <td>set each pixel whose value is below zero to zero and any the pixel whose value is above the quantum range to the quantum range (e.g. 65535) otherwise the pixel value remains unchanged.</td>
cristyb4c03bb2009-09-27 13:55:46 +0000[diff] [blame]258 </tr>
259
260 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]261 <td><a href="command-line-options.html#clip">-clip</a></td>
262 <td>clip along the first path from the 8BIM profile</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]263 </tr>
264
265 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]266 <td><a href="command-line-options.html#clip-mask">-clip-mask</a> <var>filename</var></td>
267 <td>associate clip mask with the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]268 </tr>
269
270 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]271 <td><a href="command-line-options.html#clip-path">-clip-path <var>id</var></a></td>
272 <td>clip along a named path from the 8BIM profile</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]273 </tr>
274
275 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]276 <td><a href="command-line-options.html#clone">-clone <var>index</var></a></td>
277 <td>clone an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]278 </tr>
279
280 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]281 <td><a href="command-line-options.html#clut">-clut</a></td>
282 <td>apply a color lookup table to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]283 </tr>
284
285 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]286 <td><a href="command-line-options.html#connected-components">-connected-components <var>connectivity</var></a></td>
287 <td>connected-components uniquely labeled, choose from 4 or 8 way connectivity</td>
cristy97f96862014-11-03 12:28:08 +0000[diff] [blame]288 </tr>
289
290 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]291 <td><a href="command-line-options.html#contrast-stretch">-contrast-stretch <var>geometry</var></a></td>
292 <td>improve the contrast in an image by `stretching' the range of intensity value</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]293 </tr>
294
295 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]296 <td><a href="command-line-options.html#coalesce">-coalesce</a></td>
297 <td>merge a sequence of images</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]298 </tr>
299
300 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]301 <td><a href="command-line-options.html#colorize">-colorize <var>value</var></a></td>
302 <td>colorize the image with the fill color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]303 </tr>
304
305 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]306 <td><a href="command-line-options.html#color-matrix">-color-matrix <var>matrix</var></a></td>
307 <td>apply color correction to the image.</td>
cristy2c839602010-04-03 02:32:08 +0000[diff] [blame]308 </tr>
309
310 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]311 <td><a href="command-line-options.html#colors">-colors <var>value</var></a></td>
312 <td>preferred number of colors in the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]313 </tr>
314
315 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]316 <td><a href="command-line-options.html#colorspace">-colorspace <var>type</var></a></td>
317 <td>set image colorspace</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]318 </tr>
319
320 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]321 <td><a href="command-line-options.html#combine">-combine</a></td>
322 <td>combine a sequence of images</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]323 </tr>
324
325 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]326 <td><a href="command-line-options.html#comment">-comment <var>string</var></a></td>
327 <td>annotate image with comment</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]328 </tr>
329
330 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]331 <td><a href="command-line-options.html#compare">-compare</a></td>
332 <td>compare image</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]333 </tr>
334
335 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]336 <td><a href="command-line-options.html#complex">-complex<var>operator</var></a></td>
337 <td>perform complex mathematics on an image sequence</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]338 </tr>
339
340 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]341 <td><a href="command-line-options.html#compose">-compose <var>operator</var></a></td>
342 <td>set image composite operator</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]343 </tr>
344
345 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]346 <td><a href="command-line-options.html#composite">-composite</a></td>
347 <td>composite image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]348 </tr>
349
350 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]351 <td><a href="command-line-options.html#compress">-compress <var>type</var></a></td>
352 <td>image compression type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]353 </tr>
354
355 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]356 <td><a href="command-line-options.html#contrast">-contrast</a></td>
357 <td>enhance or reduce the image contrast</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]358 </tr>
359
360 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]361 <td><a href="command-line-options.html#convolve">-convolve <var>coefficients</var></a></td>
362 <td>apply a convolution kernel to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]363 </tr>
364
365 <tr>
cristy29f2c972015-07-28 13:37:46 +0000[diff] [blame]366 <td><a href="command-line-options.html#copy">-copy <var>geometry</var> <var>offset</var></a></td>
367 <td>copy pixels from one area of an image to another</td>
368 </tr>
369
370 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]371 <td><a href="command-line-options.html#crop">-crop <var>geometry</var></a></td>
372 <td>crop the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]373 </tr>
374
375 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]376 <td><a href="command-line-options.html#cycle">-cycle <var>amount</var></a></td>
377 <td>cycle the image colormap</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]378 </tr>
379
380 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]381 <td><a href="command-line-options.html#decipher">-decipher <var>filename</var></a></td>
382 <td>convert cipher pixels to plain</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]383 </tr>
384
385 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]386 <td><a href="command-line-options.html#debug">-debug <var>events</var></a></td>
387 <td>display copious debugging information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]388 </tr>
389
390 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]391 <td><a href="command-line-options.html#define">-define <var>format:option</var></a></td>
392 <td>define one or more image format options</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]393 </tr>
394
395 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]396 <td><a href="command-line-options.html#deconstruct">-deconstruct</a></td>
397 <td>break down an image sequence into constituent parts</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]398 </tr>
399
400 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]401 <td><a href="command-line-options.html#delay">-delay <var>value</var></a></td>
402 <td>display the next image after pausing</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]403 </tr>
404
405 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]406 <td><a href="command-line-options.html#delete">-delete <var>index</var></a></td>
407 <td>delete the image from the image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]408 </tr>
409
410 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]411 <td><a href="command-line-options.html#density">-density <var>geometry</var></a></td>
412 <td>horizontal and vertical density of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]413 </tr>
414
415 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]416 <td><a href="command-line-options.html#depth">-depth <var>value</var></a></td>
417 <td>image depth</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]418 </tr>
419
420 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]421 <td><a href="command-line-options.html#despeckle">-despeckle</a></td>
422 <td>reduce the speckles within an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]423 </tr>
424
425 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]426 <td><a href="command-line-options.html#direction">-direction <var>type</var></a></td>
427 <td>render text right-to-left or left-to-right</td>
cristy2c839602010-04-03 02:32:08 +0000[diff] [blame]428 </tr>
429
430 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]431 <td><a href="command-line-options.html#display">-display <var>server</var></a></td>
432 <td>get image or font from this X server</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]433 </tr>
434
435 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]436 <td><a href="command-line-options.html#dispose">-dispose <var>method</var></a></td>
437 <td>layer disposal method</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]438 </tr>
439
440 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]441 <td><a href="command-line-options.html#distribute-cache">-distribute-cache <var>port</var></a></td>
442 <td>launch a distributed pixel cache server</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]443 </tr>
444
445 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]446 <td><a href="command-line-options.html#distort">-distort <var>type coefficients</var></a></td>
447 <td>distort image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]448 </tr>
449
450 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]451 <td><a href="command-line-options.html#dither">-dither <var>method</var></a></td>
452 <td>apply error diffusion to image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]453 </tr>
454
455 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]456 <td><a href="command-line-options.html#draw">-draw <var>string</var></a></td>
457 <td>annotate the image with a graphic primitive</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]458 </tr>
459
460 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]461 <td><a href="command-line-options.html#duplicate">-duplicate <var>count,indexes</var></a></td>
462 <td>duplicate an image one or more times</td>
cristy8b9dd952011-03-21 22:56:18 +0000[diff] [blame]463 </tr>
464
465 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]466 <td><a href="command-line-options.html#edge">-edge <var>radius</var></a></td>
467 <td>apply a filter to detect edges in the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]468 </tr>
469
470 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]471 <td><a href="command-line-options.html#emboss">-emboss <var>radius</var></a></td>
472 <td>emboss an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]473 </tr>
474
475 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]476 <td><a href="command-line-options.html#encipher">-encipher <var>filename</var></a></td>
477 <td>convert plain pixels to cipher pixels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]478 </tr>
479
480 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]481 <td><a href="command-line-options.html#encoding">-encoding <var>type</var></a></td>
482 <td>text encoding type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]483 </tr>
484
485 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]486 <td><a href="command-line-options.html#endian">-endian <var>type</var></a></td>
487 <td>endianness (MSB or LSB) of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]488 </tr>
489
490 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]491 <td><a href="command-line-options.html#enhance">-enhance</a></td>
492 <td>apply a digital filter to enhance a noisy image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]493 </tr>
494
495 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]496 <td><a href="command-line-options.html#equalize">-equalize</a></td>
497 <td>perform histogram equalization to an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]498 </tr>
499
500 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]501 <td><a href="command-line-options.html#evaluate">-evaluate <var>operator value</var></a></td>
502 <td>evaluate an arithmetic, relational, or logical expression</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]503 </tr>
504
505 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]506 <td><a href="command-line-options.html#evaluate-sequence">-evaluate-sequence <var>operator</var></a></td>
507 <td>evaluate an arithmetic, relational, or logical expression for an image sequence</td>
cristy63fed272010-03-07 19:08:45 +0000[diff] [blame]508 </tr>
509
510 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]511 <td><a href="command-line-options.html#extent">-extent <var>geometry</var></a></td>
512 <td>set the image size</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]513 </tr>
514
515 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]516 <td><a href="command-line-options.html#extract">-extract <var>geometry</var></a></td>
517 <td>extract area from image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]518 </tr>
519
520 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]521 <td><a href="command-line-options.html#family">-family <var>name</var></a></td>
522 <td>render text with this font family</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]523 </tr>
524
525 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]526 <td><a href="command-line-options.html#features">-features <var>distance</var></a></td>
527 <td>analyze image features (e.g. contract, correlations, etc.).</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]528 </tr>
529
530 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]531 <td><a href="command-line-options.html#fft">-fft</a></td>
Cristy542697a2015-10-12 20:10:32 -0400[diff] [blame]532 <td>implements the discrete Fourier transform (DFT)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]533 </tr>
534
535 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]536 <td><a href="command-line-options.html#fill">-fill <var>color</var></a></td>
537 <td>color to use when filling a graphic primitive</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]538 </tr>
539
540 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]541 <td><a href="command-line-options.html#filter">-filter <var>type</var></a></td>
542 <td>use this filter when resizing an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]543 </tr>
544
545 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]546 <td><a href="command-line-options.html#flatten">-flatten</a></td>
547 <td>flatten a sequence of images</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]548 </tr>
549
550 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]551 <td><a href="command-line-options.html#flip">-flip</a></td>
552 <td>flip image in the vertical direction</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]553 </tr>
554
555 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]556 <td><a href="command-line-options.html#floodfill">-floodfill <var>geometry color</var></a></td>
557 <td>floodfill the image with color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]558 </tr>
559
560 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]561 <td><a href="command-line-options.html#flop">-flop</a></td>
562 <td>flop image in the horizontal direction</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]563 </tr>
564
565 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]566 <td><a href="command-line-options.html#font">-font <var>name</var></a></td>
567 <td>render text with this font</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]568 </tr>
569
570 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]571 <td><a href="command-line-options.html#format_identify_">-format <var>string</var></a></td>
572 <td>output formatted image characteristics</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]573 </tr>
574
575 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]576 <td><a href="command-line-options.html#frame">-frame <var>geometry</var></a></td>
577 <td>surround image with an ornamental border</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]578 </tr>
579
580 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]581 <td><a href="command-line-options.html#function">-function <var>name</var></a></td>
582 <td>apply a function to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]583 </tr>
584
585 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]586 <td><a href="command-line-options.html#fuzz">-fuzz <var>distance</var></a></td>
587 <td>colors within this distance are considered equal</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]588 </tr>
589
590 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]591 <td><a href="command-line-options.html#fx">-fx <var>expression</var></a></td>
592 <td>apply mathematical expression to an image channel(s)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]593 </tr>
594
595 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]596 <td><a href="command-line-options.html#gamma">-gamma <var>value</var></a></td>
597 <td>level of gamma correction</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]598 </tr>
599
600 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]601 <td><a href="command-line-options.html#gaussian-blur">-gaussian-blur <var>geometry</var></a></td>
602 <td>reduce image noise and reduce detail levels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]603 </tr>
604
605 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]606 <td><a href="command-line-options.html#geometry">-geometry <var>geometry</var></a></td>
607 <td>preferred size or location of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]608 </tr>
609
610 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]611 <td><a href="command-line-options.html#gravity">-gravity <var>type</var></a></td>
612 <td>horizontal and vertical text placement</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]613 </tr>
614
615 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]616 <td><a href="command-line-options.html#intensity">-grayscale <var>method</var></a></td>
617 <td>convert image to grayscale</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]618 </tr>
619
620 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]621 <td><a href="command-line-options.html#green-primary">-green-primary <var>point</var></a></td>
622 <td>chromaticity green primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]623 </tr>
624
625 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]626 <td><a href="command-line-options.html#help">-help</a></td>
627 <td>print program options</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]628 </tr>
629
630 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]631 <td><a href="command-line-options.html#hough-lines">-hough-lines <var>geometry</var></a></td>
632 <td>identify lines in the image</td>
cristy91469932014-07-25 11:00:25 +0000[diff] [blame]633 </tr>
634
635 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]636 <td><a href="command-line-options.html#identify">-identify</a></td>
637 <td>identify the format and characteristics of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]638 </tr>
639
640 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]641 <td><a href="command-line-options.html#ift">-ift</a></td>
642 <td>implements the inverse discrete Fourier transform (DFT)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]643 </tr>
644
645 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]646 <td><a href="command-line-options.html#implode">-implode <var>amount</var></a></td>
647 <td>implode image pixels about the center</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]648 </tr>
649
650 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]651 <td><a href="command-line-options.html#insert">-insert <var>index</var></a></td>
652 <td>insert last image into the image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]653 </tr>
654
655 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]656 <td><a href="command-line-options.html#intensity">-intensity <var>method</var></a></td>
657 <td>method to generate an intensity value from a pixel</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]658 </tr>
659
660 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]661 <td><a href="command-line-options.html#intent">-intent <var>type</var></a></td>
662 <td>type of rendering intent when managing the image color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]663 </tr>
664
665 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]666 <td><a href="command-line-options.html#interlace">-interlace <var>type</var></a></td>
667 <td>type of image interlacing scheme</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]668 </tr>
669
670 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]671 <td><a href="command-line-options.html#interline-spacing">-interline-spacing <var>value</var></a></td>
672 <td>the space between two text lines</td>
cristyf3bb4782009-09-08 13:10:04 +0000[diff] [blame]673 </tr>
674
675 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]676 <td><a href="command-line-options.html#interpolate">-interpolate <var>method</var></a></td>
677 <td>pixel color interpolation method</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]678 </tr>
679
680 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]681 <td><a href="command-line-options.html#interword-spacing">-interword-spacing <var>value</var></a></td>
682 <td>the space between two words</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]683 </tr>
684
685 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]686 <td><a href="command-line-options.html#kerning">-kerning <var>value</var></a></td>
687 <td>the space between two characters</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]688 </tr>
689
690 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]691 <td><a href="command-line-options.html#kuwahara">-kuwahara <var>geometry</var></a></td>
692 <td>edge preserving noise reduction filter</td>
cristy97f96862014-11-03 12:28:08 +0000[diff] [blame]693 </tr>
694
695 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]696 <td><a href="command-line-options.html#label">-label <var>string</var></a></td>
697 <td>assign a label to an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]698 </tr>
699
700 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]701 <td><a href="command-line-options.html#lat">-lat <var>geometry</var></a></td>
702 <td>local adaptive thresholding</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]703 </tr>
704
705 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]706 <td><a href="command-line-options.html#layers">-layers <var>method</var></a></td>
707 <td>optimize or compare image layers</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]708 </tr>
709
710 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]711 <td><a href="command-line-options.html#level">-level <var>value</var></a></td>
712 <td>adjust the level of image contrast</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]713 </tr>
714
715 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]716 <td><a href="command-line-options.html#limit">-limit <var>type value</var></a></td>
717 <td>pixel cache resource limit</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]718 </tr>
719
720 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]721 <td><a href="command-line-options.html#linear-stretch">-linear-stretch <var>geometry</var></a></td>
722 <td>linear with saturation histogram stretch</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]723 </tr>
724
725 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]726 <td><a href="command-line-options.html#liquid-rescale">-liquid-rescale <var>geometry</var></a></td>
727 <td>rescale image with seam-carving</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]728 </tr>
729
730 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]731 <td><a href="command-line-options.html#list">-list <var>type</var></a></td>
732 <td>Color, Configure, Delegate, Format, Magic, Module, Resource, or Type</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]733 </tr>
734
735 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]736 <td><a href="command-line-options.html#log">-log <var>format</var></a></td>
737 <td>format of debugging information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]738 </tr>
739
740 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]741 <td><a href="command-line-options.html#loop">-loop <var>iterations</var></a></td>
742 <td>add Netscape loop extension to your GIF animation</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]743 </tr>
744
745 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]746 <td><a href="command-line-options.html#mattecolor">-mattecolor <var>color</var></a></td>
747 <td>frame color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]748 </tr>
749
750 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]751 <td><a href="command-line-options.html#median">-median <var>radius</var></a></td>
752 <td>apply a median filter to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]753 </tr>
754
755 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]756 <td><a href="command-line-options.html#mean-shift">-mean-shift <var>geometry</var></a></td>
757 <td>delineate arbitrarily shaped clusters in the image</td>
cristy91469932014-07-25 11:00:25 +0000[diff] [blame]758 </tr>
759
760 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]761 <td><a href="command-line-options.html#metric">-metric <var>type</var></a></td>
762 <td>measure differences between images with this metric</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]763 </tr>
764
765 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]766 <td><a href="command-line-options.html#mode">-mode <var>radius</var></a></td>
767 <td>make each pixel the 'predominant color' of the neighborhood</td>
cristybe3c5be2011-03-05 17:35:07 +0000[diff] [blame]768 </tr>
769
770 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]771 <td><a href="command-line-options.html#modulate">-modulate <var>value</var></a></td>
772 <td>vary the brightness, saturation, and hue</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]773 </tr>
774
775 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]776 <td><a href="command-line-options.html#moments">-moments</a></td>
777 <td>display image moments.</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]778 </tr>
779
780 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]781 <td><a href="command-line-options.html#monitor">-monitor</a></td>
782 <td>monitor progress</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]783 </tr>
784
785 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]786 <td><a href="command-line-options.html#monochrome">-monochrome</a></td>
787 <td>transform image to black and white</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]788 </tr>
789
790 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]791 <td><a href="command-line-options.html#morph">-morph <var>value</var></a></td>
792 <td>morph an image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]793 </tr>
794
795 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]796 <td><a href="command-line-options.html#morphology">-morphology <var>method</var></a> <var>kernel</var></td>
797 <td>apply a morphology method to the image</td>
cristy488844c2010-01-22 14:02:05 +0000[diff] [blame]798 </tr>
799
800 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]801 <td><a href="command-line-options.html#motion-blur">-motion-blur <var>geometry</var></a></td>
802 <td>simulate motion blur</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]803 </tr>
804
805 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]806 <td><a href="command-line-options.html#negate">-negate</a></td>
807 <td>replace each pixel with its complementary color </td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]808 </tr>
809
810 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]811 <td><a href="command-line-options.html#noise">-noise <var>radius</var></a></td>
812 <td>add or reduce noise in an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]813 </tr>
814
815 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]816 <td><a href="command-line-options.html#normalize">-normalize</a></td>
817 <td>transform image to span the full range of colors</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]818 </tr>
819
820 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]821 <td><a href="command-line-options.html#opaque">-opaque <var>color</var></a></td>
822 <td>change this color to the fill color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]823 </tr>
824
825 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]826 <td><a href="command-line-options.html#ordered-dither">-ordered-dither <var>NxN</var></a></td>
827 <td>ordered dither the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]828 </tr>
829
830 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]831 <td><a href="command-line-options.html#orient">-orient <var>type</var></a></td>
832 <td>image orientation</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]833 </tr>
834
835 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]836 <td><a href="command-line-options.html#page">-page <var>geometry</var></a></td>
837 <td>size and location of an image canvas (setting)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]838 </tr>
839
840 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]841 <td><a href="command-line-options.html#paint">-paint <var>radius</var></a></td>
842 <td>simulate an oil painting</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]843 </tr>
844
845 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]846 <td><a href="command-line-options.html#perceptible">-perceptible</a></td>
847 <td>set each pixel whose value is less than |<var>epsilon</var>| to <var>-epsilon</var> or <var>epsilon</var> (whichever is closer) otherwise the pixel value remains unchanged.</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]848 </tr>
849
850 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]851 <td><a href="command-line-options.html#ping">-ping</a></td>
852 <td>efficiently determine image attributes</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]853 </tr>
854
855 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]856 <td><a href="command-line-options.html#pointsize">-pointsize <var>value</var></a></td>
857 <td>font point size</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]858 </tr>
859
860 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]861 <td><a href="command-line-options.html#polaroid">-polaroid <var>angle</var></a></td>
862 <td>simulate a Polaroid picture</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]863 </tr>
864
865 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]866 <td><a href="command-line-options.html#poly">-poly <var>terms</var></a></td>
867 <td>build a polynomial from the image sequence and the corresponding terms (coefficients and degree pairs).</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]868 </tr>
869
870 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]871 <td><a href="command-line-options.html#posterize">-posterize <var>levels</var></a></td>
872 <td>reduce the image to a limited number of color levels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]873 </tr>
874
875 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]876 <td><a href="command-line-options.html#precision">-precision <var>value</var></a></td>
877 <td>set the maximum number of significant digits to be printed</td>
cristyd43a46b2010-01-21 02:13:41 +0000[diff] [blame]878 </tr>
879
880 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]881 <td><a href="command-line-options.html#preview">-preview <var>type</var></a></td>
882 <td>image preview type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]883 </tr>
884
885 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]886 <td><a href="command-line-options.html#print">-print <var>string</var></a></td>
887 <td>interpret string and print to console</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]888 </tr>
889
890 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]891 <td><a href="command-line-options.html#process">-process <var>image-filter</var></a></td>
892 <td>process the image with a custom image filter</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]893 </tr>
894
895 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]896 <td><a href="command-line-options.html#profile">-profile <var>filename</var></a></td>
897 <td>add, delete, or apply an image profile</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]898 </tr>
899
900 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]901 <td><a href="command-line-options.html#quality">-quality <var>value</var></a></td>
902 <td>JPEG/MIFF/PNG compression level</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]903 </tr>
904
905 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]906 <td><a href="command-line-options.html#quantize">-quantize <var>colorspace</var></a></td>
907 <td>reduce image colors in this colorspace</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]908 </tr>
909
910 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]911 <td><a href="command-line-options.html#quiet">-quiet</a></td>
912 <td>suppress all warning messages</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]913 </tr>
914
915 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]916 <td><a href="command-line-options.html#radial-blur">-radial-blur <var>angle</var></a></td>
917 <td>radial blur the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]918 </tr>
919
920 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]921 <td><a href="command-line-options.html#raise">-raise <var>value</var></a></td>
922 <td>lighten/darken image edges to create a 3-D effect</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]923 </tr>
924
925 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]926 <td><a href="command-line-options.html#random-threshold">-random-threshold <var>low,high</var></a></td>
927 <td>random threshold the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]928 </tr>
929
930 <tr>
Cristye0779712016-07-30 17:25:22 -0400[diff] [blame]931 <td><a href="command-line-options.html#read-mask">-read-mask <var>filename</var></a></td>
932 <td>associate a read mask with the image</td>
933 </tr>
934
935 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]936 <td><a href="command-line-options.html#red-primary">-red-primary <var>point</var></a></td>
937 <td>chromaticity red primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]938 </tr>
939
940 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]941 <td><a href="command-line-options.html#regard-warnings">-regard-warnings</a></td>
942 <td>pay attention to warning messages.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]943 </tr>
944
945 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]946 <td><a href="command-line-options.html#region">-region <var>geometry</var></a></td>
947 <td>apply options to a portion of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]948 </tr>
949
950 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]951 <td><a href="command-line-options.html#remap">-remap <var>filename</var></a></td>
952 <td>transform image colors to match this set of colors</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]953 </tr>
954
955 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]956 <td><a href="command-line-options.html#render">-render</a></td>
957 <td>render vector graphics</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]958 </tr>
959
960 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]961 <td><a href="command-line-options.html#repage">-repage <var>geometry</var></a></td>
962 <td>size and location of an image canvas</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]963 </tr>
964
965 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]966 <td><a href="command-line-options.html#resample">-resample <var>geometry</var></a></td>
967 <td>change the resolution of an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]968 </tr>
969
970 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]971 <td><a href="command-line-options.html#resize">-resize <var>geometry</var></a></td>
972 <td>resize the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]973 </tr>
974
975 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]976 <td><a href="command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
977 <td>settings remain in effect until parenthesis boundary.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]978 </tr>
979
980 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]981 <td><a href="command-line-options.html#roll">-roll <var>geometry</var></a></td>
982 <td>roll an image vertically or horizontally</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]983 </tr>
984
985 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]986 <td><a href="command-line-options.html#rotate">-rotate <var>degrees</var></a></td>
987 <td>apply Paeth rotation to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]988 </tr>
989
990 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]991 <td><a href="command-line-options.html#sample">-sample <var>geometry</var></a></td>
992 <td>scale image with pixel sampling</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]993 </tr>
994
995 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]996 <td><a href="command-line-options.html#sampling-factor">-sampling-factor <var>geometry</var></a></td>
997 <td>horizontal and vertical sampling factor</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]998 </tr>
999
1000 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1001 <td><a href="command-line-options.html#scale">-scale <var>geometry</var></a></td>
1002 <td>scale the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1003 </tr>
1004
1005 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1006 <td><a href="command-line-options.html#scene">-scene <var>value</var></a></td>
1007 <td>image scene number</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1008 </tr>
1009
1010 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1011 <td><a href="command-line-options.html#seed">-seed <var>value</var></a></td>
1012 <td>seed a new sequence of pseudo-random numbers</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1013 </tr>
1014
1015 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1016 <td><a href="command-line-options.html#segment">-segment <var>values</var></a></td>
1017 <td>segment an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1018 </tr>
1019
1020 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1021 <td><a href="command-line-options.html#threshold">-selective-blur <var>geometry</var></a></td>
1022 <td>selectively blur pixels within a contrast threshold</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1023 </tr>
1024
1025 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1026 <td><a href="command-line-options.html#separate">-separate</a></td>
1027 <td>separate an image channel into a grayscale image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1028 </tr>
1029
1030 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1031 <td><a href="command-line-options.html#sepia-tone">-sepia-tone <var>threshold</var></a></td>
1032 <td>simulate a sepia-toned photo</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1033 </tr>
1034
1035 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1036 <td><a href="command-line-options.html#set">-set <var>attribute value</var></a></td>
1037 <td>set an image attribute</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1038 </tr>
1039
1040 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1041 <td><a href="command-line-options.html#shade">-shade <var>degrees</var></a></td>
1042 <td>shade the image using a distant light source</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1043 </tr>
1044
1045 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1046 <td><a href="command-line-options.html#shadow">-shadow <var>geometry</var></a></td>
1047 <td>simulate an image shadow</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1048 </tr>
1049
1050 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1051 <td><a href="command-line-options.html#sharpen">-sharpen <var>geometry</var></a></td>
1052 <td>sharpen the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1053 </tr>
1054
1055 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1056 <td><a href="command-line-options.html#shave">-shave <var>geometry</var></a></td>
1057 <td>shave pixels from the image edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1058 </tr>
1059
1060 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1061 <td><a href="command-line-options.html#shear">-shear <var>geometry</var></a></td>
1062 <td>slide one edge of the image along the X or Y axis</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1063 </tr>
1064
1065 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1066 <td><a href="command-line-options.html#sigmoidal">-sigmoidal-contrast <var>geometry</var></a></td>
1067 <td>increase the contrast without saturating highlights or shadows</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1068 </tr>
1069
1070 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1071 <td><a href="command-line-options.html#smush">-smush <var>offset</var></a></td>
1072 <td>smush an image sequence together</td>
cristy2d67ddd2011-02-13 15:38:23 +0000[diff] [blame]1073 </tr>
1074
1075 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1076 <td><a href="command-line-options.html#size">-size <var>geometry</var></a></td>
1077 <td>width and height of image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1078 </tr>
1079
1080 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1081 <td><a href="command-line-options.html#sketch">-sketch <var>geometry</var></a></td>
1082 <td>simulate a pencil sketch</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1083 </tr>
1084
1085 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1086 <td><a href="command-line-options.html#solarize">-solarize <var>threshold</var></a></td>
1087 <td>negate all pixels above the threshold level</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1088 </tr>
1089
1090 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1091 <td><a href="command-line-options.html#splice">-splice <var>geometry</var></a></td>
1092 <td>splice the background color into the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1093 </tr>
1094
1095 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1096 <td><a href="command-line-options.html#spread">-spread <var>radius</var></a></td>
1097 <td>displace image pixels by a random amount</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1098 </tr>
1099
1100 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1101 <td><a href="command-line-options.html#statistic">-statistic <var>type</var> <var>geometry</var></a></td>
1102 <td>replace each pixel with corresponding statistic from the neighborhood</td>
cristyb52981c2011-03-19 17:09:31 +0000[diff] [blame]1103 </tr>
1104
1105 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1106 <td><a href="command-line-options.html#strip">-strip</a></td>
1107 <td>strip image of all profiles and comments</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1108 </tr>
1109
1110 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1111 <td><a href="command-line-options.html#stroke">-stroke <var>color</var></a></td>
1112 <td>graphic primitive stroke color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1113 </tr>
1114
1115 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1116 <td><a href="command-line-options.html#strokewidth">-strokewidth <var>value</var></a></td>
1117 <td>graphic primitive stroke width</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1118 </tr>
1119
1120 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1121 <td><a href="command-line-options.html#stretch">-stretch <var>type</var></a></td>
1122 <td>render text with this font stretch</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1123 </tr>
1124
1125 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1126 <td><a href="command-line-options.html#style">-style <var>type</var></a></td>
1127 <td>render text with this font style</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1128 </tr>
1129
1130 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1131 <td><a href="command-line-options.html#swap">-swap <var>indexes</var></a></td>
1132 <td>swap two images in the image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1133 </tr>
1134
1135 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1136 <td><a href="command-line-options.html#swirl">-swirl <var>degrees</var></a></td>
1137 <td>swirl image pixels about the center</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1138 </tr>
1139
1140 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1141 <td><a href="command-line-options.html#synchronize">-synchronize</a></td>
1142 <td>synchronize image to storage device</td>
cristy5063d812010-10-19 16:28:10 +0000[diff] [blame]1143 </tr>
1144
1145 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1146 <td><a href="command-line-options.html#taint">-taint</a></td>
1147 <td>mark the image as modified</td>
cristy5063d812010-10-19 16:28:10 +0000[diff] [blame]1148 </tr>
1149
1150 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1151 <td><a href="command-line-options.html#texture">-texture <var>filename</var></a></td>
1152 <td>name of texture to tile onto the image background</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1153 </tr>
1154
1155 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1156 <td><a href="command-line-options.html#threshold">-threshold <var>value</var></a></td>
1157 <td>threshold the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1158 </tr>
1159
1160 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1161 <td><a href="command-line-options.html#thumbnail">-thumbnail <var>geometry</var></a></td>
1162 <td>create a thumbnail of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1163 </tr>
1164
1165 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1166 <td><a href="command-line-options.html#tile">-tile <var>filename</var></a></td>
1167 <td>tile image when filling a graphic primitive</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1168 </tr>
1169
1170 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1171 <td><a href="command-line-options.html#tile-offset">-tile-offset <var>geometry</var></a></td>
1172 <td>set the image tile offset</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1173 </tr>
1174
1175 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1176 <td><a href="command-line-options.html#tint">-tint <var>value</var></a></td>
1177 <td>tint the image with the fill color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1178 </tr>
1179
1180 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1181 <td><a href="command-line-options.html#transform">-transform</a></td>
1182 <td>affine transform image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1183 </tr>
1184
1185 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1186 <td><a href="command-line-options.html#transparent">-transparent <var>color</var></a></td>
1187 <td>make this color transparent within the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1188 </tr>
1189
1190 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1191 <td><a href="command-line-options.html#transparent-color">-transparent-color <var>color</var></a></td>
1192 <td>transparent color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1193 </tr>
1194
1195 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1196 <td><a href="command-line-options.html#transpose">-transpose</a></td>
1197 <td>flip image in the vertical direction and rotate 90 degrees</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1198 </tr>
1199
1200 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1201 <td><a href="command-line-options.html#transverse">-transverse</a></td>
1202 <td>flop image in the horizontal direction and rotate 270 degrees</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1203 </tr>
1204
1205 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1206 <td><a href="command-line-options.html#treedepth">-treedepth <var>value</var></a></td>
1207 <td>color tree depth</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1208 </tr>
1209
1210 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1211 <td><a href="command-line-options.html#trim">-trim</a></td>
1212 <td>trim image edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1213 </tr>
1214
1215 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1216 <td><a href="command-line-options.html#type">-type <var>type</var></a></td>
1217 <td>image type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1218 </tr>
1219
1220 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1221 <td><a href="command-line-options.html#undercolor">-undercolor <var>color</var></a></td>
1222 <td>annotation bounding box color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1223 </tr>
1224
1225 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1226 <td><a href="command-line-options.html#unique-colors">-unique-colors</a></td>
1227 <td>discard all but one of any pixel color.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1228 </tr>
1229
1230 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1231 <td><a href="command-line-options.html#units">-units <var>type</var></a></td>
1232 <td>the units of image resolution</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1233 </tr>
1234
1235 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1236 <td><a href="command-line-options.html#unsharp">-unsharp <var>geometry</var></a></td>
1237 <td>sharpen the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1238 </tr>
1239
1240 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1241 <td><a href="command-line-options.html#verbose">-verbose</a></td>
1242 <td>print detailed information about the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1243 </tr>
1244
1245 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1246 <td><a href="command-line-options.html#version">-version</a></td>
1247 <td>print version information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1248 </tr>
1249
1250 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1251 <td><a href="command-line-options.html#view">-view</a></td>
1252 <td>FlashPix viewing transforms</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1253 </tr>
1254
1255 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1256 <td><a href="command-line-options.html#vignette">-vignette <var>geometry</var></a></td>
1257 <td>soften the edges of the image in vignette style</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1258 </tr>
1259
1260 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1261 <td><a href="command-line-options.html#virtual-pixel">-virtual-pixel <var>method</var></a></td>
1262 <td>access method for pixels outside the boundaries of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1263 </tr>
1264
1265 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1266 <td><a href="command-line-options.html#wave">-wave <var>geometry</var></a></td>
1267 <td>alter an image along a sine wave</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1268 </tr>
1269
1270 <tr>
Cristye09ed312016-03-06 08:07:39 -0500[diff] [blame]1271 <td><a href="command-line-options.html#wavelet">-wavelet-denoise <var>threshold</var></a></td>
1272 <td>removes noise from the image using a wavelet transform</td>
1273 </tr>
1274
1275 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1276 <td><a href="command-line-options.html#weight">-weight <var>type</var></a></td>
1277 <td>render text with this font weight</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1278 </tr>
1279
1280 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1281 <td><a href="command-line-options.html#white-point">-white-point <var>point</var></a></td>
1282 <td>chromaticity white point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1283 </tr>
1284
1285 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1286 <td><a href="command-line-options.html#white-threshold">-white-threshold <var>value</var></a></td>
1287 <td>force all pixels above the threshold into white</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1288 </tr>
1289
1290 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1291 <td><a href="command-line-options.html#write">-write <var>filename</var></a></td>
1292 <td>write images to this file</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1293 </tr>
Cristye0779712016-07-30 17:25:22 -0400[diff] [blame]1294
1295 <tr>
1296 <td><a href="command-line-options.html#write-mask">-write-mask <var>filename</var></a></td>
1297 <td>associate a write mask with the image</td>
1298 </tr>
1299
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1300</table>
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