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cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]6<html lang="en">
cristyad41c0c2012-10-31 00:49:28 +0000[diff] [blame]7<head>
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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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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>
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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
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]60<pre><code>
Cristyae7da2d2017-05-18 09:41:17 -0400[diff] [blame]61magick convert rose.jpg rose.png
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]62</code></pre>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]63
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]64<p>Next, we reduce the image size before it is written to the PNG format:</p>
65
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]66<pre><code>
Cristyae7da2d2017-05-18 09:41:17 -0400[diff] [blame]67magick convert rose.jpg -resize 50% rose.png
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]68</code></pre>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]69
70<ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]71 <a href="../images/rose.jpg">
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]72 <img src="../images/rose.jpg" width="70" height="46" alt="rose" />
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]73 </a>
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]74 <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]75 <a href="../images/rose.png">
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]76 <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]77 </a>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]78</ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]79
80<p>You can combine multiple image-processing operations to produce complex results:</p>
81
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]82<pre><code>
Cristyae7da2d2017-05-18 09:41:17 -0400[diff] [blame]83magick convert -size 320x85 canvas:none -font Bookman-DemiItalic -pointsize 72 \
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]84 -draw "text 25,60 \'Magick\'" -channel RGBA -blur 0x6 -fill darkred -stroke magenta \
85 -draw "text 20,55 \'Magick\'" fuzzy-magick.png
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]86</code></pre>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]87
88<ul>
Cristy594d2772015-11-15 10:47:42 -0500[diff] [blame]89 <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]90</ul>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]91
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]92<p>or here we resize an image with improved quality:</p>
93
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]94<pre><code>
Cristyae7da2d2017-05-18 09:41:17 -0400[diff] [blame]95magick convert input.png -colorspace RGB +sigmoidal-contrast 11.6933 \
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]96 -define filter:filter=Sinc -define filter:window=Jinc -define filter:lobes=3 \
97 -resize 400% -sigmoidal-contrast 11.6933 -colorspace sRGB output.png');
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]98</code></pre>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]99
Cristy364a72f2016-11-04 22:38:41 -0400[diff] [blame]100<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]101
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]102<h2 class="magick-post-title"><a id="options"></a>Option Summary</h2>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]103
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]104<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]105
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]106<div class="table-responsive">
Cristy49380402017-06-29 11:24:55 -0400[diff] [blame]107<table class="table table-sm table-striped">
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]108 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]109 <td><a href="command-line-options.html#adaptive-blur">-adaptive-blur <var>geometry</var></a></td>
110 <td>adaptively blur pixels; decrease effect near edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]111 </tr>
112
113 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]114 <td><a href="command-line-options.html#adaptive-resize">-adaptive-resize <var>geometry</var></a></td>
115 <td>adaptively resize image with data dependent triangulation.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]116 </tr>
117
118 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]119 <td><a href="command-line-options.html#adaptive-sharpen">-adaptive-sharpen <var>geometry</var></a></td>
120 <td>adaptively sharpen pixels; increase effect near edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]121 </tr>
122
123 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]124 <td><a href="command-line-options.html#adjoin">-adjoin</a></td>
125 <td>join images into a single multi-image file</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]126 </tr>
127
128 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]129 <td><a href="command-line-options.html#affine">-affine <var>matrix</var></a></td>
130 <td>affine transform matrix</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]131 </tr>
132
133 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]134 <td><a href="command-line-options.html#alpha">-alpha</a></td>
135 <td>on, activate, off, deactivate, set, opaque, copy",
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]136transparent, extract, background, or shape the alpha channel</td>
137 </tr>
138
139 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]140 <td><a href="command-line-options.html#annotate">-annotate <var>geometry text</var></a></td>
141 <td>annotate the image with text</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]142 </tr>
143
144 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]145 <td><a href="command-line-options.html#antialias">-antialias</a></td>
146 <td>remove pixel-aliasing</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]147 </tr>
148
149 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]150 <td><a href="command-line-options.html#append">-append</a></td>
151 <td>append an image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]152 </tr>
153
154 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]155 <td><a href="command-line-options.html#authenticate">-authenticate <var>value</var></a></td>
156 <td>decipher image with this password</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]157 </tr>
158
159 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]160 <td><a href="command-line-options.html#auto-gamma">-auto-gamma</a></td>
161 <td>automagically adjust gamma level of image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]162 </tr>
163
164 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]165 <td><a href="command-line-options.html#auto-level">-auto-level</a></td>
166 <td>automagically adjust color levels of image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]167 </tr>
168
169 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]170 <td><a href="command-line-options.html#auto-orient">-auto-orient</a></td>
171 <td>automagically orient image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]172 </tr>
173
174 <tr>
Cristy51f5e902017-07-03 10:38:30 -0400[diff] [blame^]175 <td><a href="command-line-options.html#auto-threshold">-auto-threshold <var>method</var></a></td>
176 <td>automatically perform image thresholding</td>
177 </tr>
178
179 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]180 <td><a href="command-line-options.html#background">-background <var>color</var></a></td>
181 <td>background color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]182 </tr>
183
184 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]185 <td><a href="command-line-options.html#bench">-bench <var>iterations</var></a></td>
186 <td>measure performance</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]187 </tr>
188
189 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]190 <td><a href="command-line-options.html#bias">-bias <var>value</var></a></td>
191 <td>add bias when convolving an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]192 </tr>
193
194 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]195 <td><a href="command-line-options.html#black-threshold">-black-threshold <var>value</var></a></td>
196 <td>force all pixels below the threshold into black</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]197 </tr>
198
199 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]200 <td><a href="command-line-options.html#blue-primary">-blue-primary <var>point</var></a></td>
201 <td>chromaticity blue primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]202 </tr>
203
204 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]205 <td><a href="command-line-options.html#blue-shift">-blue-shift <var>factor</var></a></td>
206 <td>simulate a scene at nighttime in the moonlight</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]207 </tr>
208
209 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]210 <td><a href="command-line-options.html#blur">-blur <var>geometry</var></a></td>
211 <td>reduce image noise and reduce detail levels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]212 </tr>
213
214 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]215 <td><a href="command-line-options.html#border">-border <var>geometry</var></a></td>
216 <td>surround image with a border of color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]217 </tr>
218
219 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]220 <td><a href="command-line-options.html#bordercolor">-bordercolor <var>color</var></a></td>
221 <td>border color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]222 </tr>
223
224 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]225 <td><a href="command-line-options.html#brightness-contrast">-brightness-contrast <var>geometry</var></a></td>
226 <td>improve brightness / contrast of the image</td>
cristy16ff93c2010-01-13 23:18:07 +0000[diff] [blame]227 </tr>
228
229 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]230 <td><a href="command-line-options.html#canny">-canny <var>geometry</var></a></td>
231 <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]232 </tr>
233
234 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]235 <td><a href="command-line-options.html#caption">-caption <var>string</var></a></td>
236 <td>assign a caption to an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]237 </tr>
238
239 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]240 <td><a href="command-line-options.html#cdl">-cdl <var>filename</var></a></td>
241 <td>color correct with a color decision list</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]242 </tr>
243
244 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]245 <td><a href="command-line-options.html#channel">-channel <var>type</var></a></td>
246 <td>apply option to select image channels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]247 </tr>
248
249 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]250 <td><a href="command-line-options.html#charcoal">-charcoal <var>radius</var></a></td>
251 <td>simulate a charcoal drawing</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]252 </tr>
253
254 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]255 <td><a href="command-line-options.html#chop">-chop <var>geometry</var></a></td>
256 <td>remove pixels from the image interior</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]257 </tr>
258
259 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]260 <td><a href="command-line-options.html#clamp">-clamp</a></td>
261 <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]262 </tr>
263
264 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]265 <td><a href="command-line-options.html#clip">-clip</a></td>
266 <td>clip along the first path from the 8BIM profile</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]267 </tr>
268
269 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]270 <td><a href="command-line-options.html#clip-mask">-clip-mask</a> <var>filename</var></td>
271 <td>associate clip mask with the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]272 </tr>
273
274 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]275 <td><a href="command-line-options.html#clip-path">-clip-path <var>id</var></a></td>
276 <td>clip along a named path from the 8BIM profile</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]277 </tr>
278
279 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]280 <td><a href="command-line-options.html#clone">-clone <var>index</var></a></td>
281 <td>clone an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]282 </tr>
283
284 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]285 <td><a href="command-line-options.html#clut">-clut</a></td>
286 <td>apply a color lookup table to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]287 </tr>
288
289 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]290 <td><a href="command-line-options.html#connected-components">-connected-components <var>connectivity</var></a></td>
291 <td>connected-components uniquely labeled, choose from 4 or 8 way connectivity</td>
cristy97f96862014-11-03 12:28:08 +0000[diff] [blame]292 </tr>
293
294 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]295 <td><a href="command-line-options.html#contrast-stretch">-contrast-stretch <var>geometry</var></a></td>
296 <td>improve the contrast in an image by `stretching' the range of intensity value</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]297 </tr>
298
299 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]300 <td><a href="command-line-options.html#coalesce">-coalesce</a></td>
301 <td>merge a sequence of images</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]302 </tr>
303
304 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]305 <td><a href="command-line-options.html#colorize">-colorize <var>value</var></a></td>
306 <td>colorize the image with the fill color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]307 </tr>
308
309 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]310 <td><a href="command-line-options.html#color-matrix">-color-matrix <var>matrix</var></a></td>
311 <td>apply color correction to the image.</td>
cristy2c839602010-04-03 02:32:08 +0000[diff] [blame]312 </tr>
313
314 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]315 <td><a href="command-line-options.html#colors">-colors <var>value</var></a></td>
316 <td>preferred number of colors in the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]317 </tr>
318
319 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]320 <td><a href="command-line-options.html#colorspace">-colorspace <var>type</var></a></td>
321 <td>set image colorspace</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]322 </tr>
323
324 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]325 <td><a href="command-line-options.html#combine">-combine</a></td>
326 <td>combine a sequence of images</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]327 </tr>
328
329 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]330 <td><a href="command-line-options.html#comment">-comment <var>string</var></a></td>
331 <td>annotate image with comment</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]332 </tr>
333
334 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]335 <td><a href="command-line-options.html#compare">-compare</a></td>
336 <td>compare image</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]337 </tr>
338
339 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]340 <td><a href="command-line-options.html#complex">-complex<var>operator</var></a></td>
341 <td>perform complex mathematics on an image sequence</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]342 </tr>
343
344 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]345 <td><a href="command-line-options.html#compose">-compose <var>operator</var></a></td>
346 <td>set image composite operator</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]347 </tr>
348
349 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]350 <td><a href="command-line-options.html#composite">-composite</a></td>
351 <td>composite image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]352 </tr>
353
354 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]355 <td><a href="command-line-options.html#compress">-compress <var>type</var></a></td>
356 <td>image compression type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]357 </tr>
358
359 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]360 <td><a href="command-line-options.html#contrast">-contrast</a></td>
361 <td>enhance or reduce the image contrast</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]362 </tr>
363
364 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]365 <td><a href="command-line-options.html#convolve">-convolve <var>coefficients</var></a></td>
366 <td>apply a convolution kernel to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]367 </tr>
368
369 <tr>
cristy29f2c972015-07-28 13:37:46 +0000[diff] [blame]370 <td><a href="command-line-options.html#copy">-copy <var>geometry</var> <var>offset</var></a></td>
371 <td>copy pixels from one area of an image to another</td>
372 </tr>
373
374 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]375 <td><a href="command-line-options.html#crop">-crop <var>geometry</var></a></td>
376 <td>crop the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]377 </tr>
378
379 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]380 <td><a href="command-line-options.html#cycle">-cycle <var>amount</var></a></td>
381 <td>cycle the image colormap</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]382 </tr>
383
384 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]385 <td><a href="command-line-options.html#decipher">-decipher <var>filename</var></a></td>
386 <td>convert cipher pixels to plain</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]387 </tr>
388
389 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]390 <td><a href="command-line-options.html#debug">-debug <var>events</var></a></td>
391 <td>display copious debugging information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]392 </tr>
393
394 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]395 <td><a href="command-line-options.html#define">-define <var>format:option</var></a></td>
396 <td>define one or more image format options</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]397 </tr>
398
399 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]400 <td><a href="command-line-options.html#deconstruct">-deconstruct</a></td>
401 <td>break down an image sequence into constituent parts</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]402 </tr>
403
404 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]405 <td><a href="command-line-options.html#delay">-delay <var>value</var></a></td>
406 <td>display the next image after pausing</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]407 </tr>
408
409 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]410 <td><a href="command-line-options.html#delete">-delete <var>index</var></a></td>
411 <td>delete the image from the image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]412 </tr>
413
414 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]415 <td><a href="command-line-options.html#density">-density <var>geometry</var></a></td>
416 <td>horizontal and vertical density of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]417 </tr>
418
419 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]420 <td><a href="command-line-options.html#depth">-depth <var>value</var></a></td>
421 <td>image depth</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]422 </tr>
423
424 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]425 <td><a href="command-line-options.html#despeckle">-despeckle</a></td>
426 <td>reduce the speckles within an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]427 </tr>
428
429 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]430 <td><a href="command-line-options.html#direction">-direction <var>type</var></a></td>
431 <td>render text right-to-left or left-to-right</td>
cristy2c839602010-04-03 02:32:08 +0000[diff] [blame]432 </tr>
433
434 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]435 <td><a href="command-line-options.html#display">-display <var>server</var></a></td>
436 <td>get image or font from this X server</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]437 </tr>
438
439 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]440 <td><a href="command-line-options.html#dispose">-dispose <var>method</var></a></td>
441 <td>layer disposal method</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]442 </tr>
443
444 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]445 <td><a href="command-line-options.html#distribute-cache">-distribute-cache <var>port</var></a></td>
446 <td>launch a distributed pixel cache server</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]447 </tr>
448
449 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]450 <td><a href="command-line-options.html#distort">-distort <var>type coefficients</var></a></td>
451 <td>distort image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]452 </tr>
453
454 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]455 <td><a href="command-line-options.html#dither">-dither <var>method</var></a></td>
456 <td>apply error diffusion to image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]457 </tr>
458
459 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]460 <td><a href="command-line-options.html#draw">-draw <var>string</var></a></td>
461 <td>annotate the image with a graphic primitive</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]462 </tr>
463
464 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]465 <td><a href="command-line-options.html#duplicate">-duplicate <var>count,indexes</var></a></td>
466 <td>duplicate an image one or more times</td>
cristy8b9dd952011-03-21 22:56:18 +0000[diff] [blame]467 </tr>
468
469 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]470 <td><a href="command-line-options.html#edge">-edge <var>radius</var></a></td>
471 <td>apply a filter to detect edges in the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]472 </tr>
473
474 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]475 <td><a href="command-line-options.html#emboss">-emboss <var>radius</var></a></td>
476 <td>emboss an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]477 </tr>
478
479 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]480 <td><a href="command-line-options.html#encipher">-encipher <var>filename</var></a></td>
481 <td>convert plain pixels to cipher pixels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]482 </tr>
483
484 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]485 <td><a href="command-line-options.html#encoding">-encoding <var>type</var></a></td>
486 <td>text encoding type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]487 </tr>
488
489 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]490 <td><a href="command-line-options.html#endian">-endian <var>type</var></a></td>
491 <td>endianness (MSB or LSB) of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]492 </tr>
493
494 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]495 <td><a href="command-line-options.html#enhance">-enhance</a></td>
496 <td>apply a digital filter to enhance a noisy image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]497 </tr>
498
499 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]500 <td><a href="command-line-options.html#equalize">-equalize</a></td>
501 <td>perform histogram equalization to an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]502 </tr>
503
504 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]505 <td><a href="command-line-options.html#evaluate">-evaluate <var>operator value</var></a></td>
506 <td>evaluate an arithmetic, relational, or logical expression</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]507 </tr>
508
509 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]510 <td><a href="command-line-options.html#evaluate-sequence">-evaluate-sequence <var>operator</var></a></td>
511 <td>evaluate an arithmetic, relational, or logical expression for an image sequence</td>
cristy63fed272010-03-07 19:08:45 +0000[diff] [blame]512 </tr>
513
514 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]515 <td><a href="command-line-options.html#extent">-extent <var>geometry</var></a></td>
516 <td>set the image size</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]517 </tr>
518
519 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]520 <td><a href="command-line-options.html#extract">-extract <var>geometry</var></a></td>
521 <td>extract area from image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]522 </tr>
523
524 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]525 <td><a href="command-line-options.html#family">-family <var>name</var></a></td>
526 <td>render text with this font family</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]527 </tr>
528
529 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]530 <td><a href="command-line-options.html#features">-features <var>distance</var></a></td>
531 <td>analyze image features (e.g. contract, correlations, etc.).</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]532 </tr>
533
534 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]535 <td><a href="command-line-options.html#fft">-fft</a></td>
Cristy542697a2015-10-12 20:10:32 -0400[diff] [blame]536 <td>implements the discrete Fourier transform (DFT)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]537 </tr>
538
539 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]540 <td><a href="command-line-options.html#fill">-fill <var>color</var></a></td>
541 <td>color to use when filling a graphic primitive</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]542 </tr>
543
544 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]545 <td><a href="command-line-options.html#filter">-filter <var>type</var></a></td>
546 <td>use this filter when resizing an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]547 </tr>
548
549 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]550 <td><a href="command-line-options.html#flatten">-flatten</a></td>
551 <td>flatten a sequence of images</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]552 </tr>
553
554 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]555 <td><a href="command-line-options.html#flip">-flip</a></td>
556 <td>flip image in the vertical direction</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]557 </tr>
558
559 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]560 <td><a href="command-line-options.html#floodfill">-floodfill <var>geometry color</var></a></td>
561 <td>floodfill the image with color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]562 </tr>
563
564 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]565 <td><a href="command-line-options.html#flop">-flop</a></td>
566 <td>flop image in the horizontal direction</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]567 </tr>
568
569 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]570 <td><a href="command-line-options.html#font">-font <var>name</var></a></td>
571 <td>render text with this font</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]572 </tr>
573
574 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]575 <td><a href="command-line-options.html#format_identify_">-format <var>string</var></a></td>
576 <td>output formatted image characteristics</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]577 </tr>
578
579 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]580 <td><a href="command-line-options.html#frame">-frame <var>geometry</var></a></td>
581 <td>surround image with an ornamental border</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]582 </tr>
583
584 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]585 <td><a href="command-line-options.html#function">-function <var>name</var></a></td>
586 <td>apply a function to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]587 </tr>
588
589 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]590 <td><a href="command-line-options.html#fuzz">-fuzz <var>distance</var></a></td>
591 <td>colors within this distance are considered equal</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]592 </tr>
593
594 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]595 <td><a href="command-line-options.html#fx">-fx <var>expression</var></a></td>
596 <td>apply mathematical expression to an image channel(s)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]597 </tr>
598
599 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]600 <td><a href="command-line-options.html#gamma">-gamma <var>value</var></a></td>
601 <td>level of gamma correction</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]602 </tr>
603
604 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]605 <td><a href="command-line-options.html#gaussian-blur">-gaussian-blur <var>geometry</var></a></td>
606 <td>reduce image noise and reduce detail levels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]607 </tr>
608
609 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]610 <td><a href="command-line-options.html#geometry">-geometry <var>geometry</var></a></td>
611 <td>preferred size or location of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]612 </tr>
613
614 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]615 <td><a href="command-line-options.html#gravity">-gravity <var>type</var></a></td>
616 <td>horizontal and vertical text placement</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]617 </tr>
618
619 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]620 <td><a href="command-line-options.html#intensity">-grayscale <var>method</var></a></td>
621 <td>convert image to grayscale</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]622 </tr>
623
624 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]625 <td><a href="command-line-options.html#green-primary">-green-primary <var>point</var></a></td>
626 <td>chromaticity green primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]627 </tr>
628
629 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]630 <td><a href="command-line-options.html#help">-help</a></td>
631 <td>print program options</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]632 </tr>
633
634 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]635 <td><a href="command-line-options.html#hough-lines">-hough-lines <var>geometry</var></a></td>
636 <td>identify lines in the image</td>
cristy91469932014-07-25 11:00:25 +0000[diff] [blame]637 </tr>
638
639 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]640 <td><a href="command-line-options.html#identify">-identify</a></td>
641 <td>identify the format and characteristics of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]642 </tr>
643
644 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]645 <td><a href="command-line-options.html#ift">-ift</a></td>
646 <td>implements the inverse discrete Fourier transform (DFT)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]647 </tr>
648
649 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]650 <td><a href="command-line-options.html#implode">-implode <var>amount</var></a></td>
651 <td>implode image pixels about the center</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]652 </tr>
653
654 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]655 <td><a href="command-line-options.html#insert">-insert <var>index</var></a></td>
656 <td>insert last image into the image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]657 </tr>
658
659 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]660 <td><a href="command-line-options.html#intensity">-intensity <var>method</var></a></td>
661 <td>method to generate an intensity value from a pixel</td>
cristy8ee7f242013-06-20 16:08:44 +0000[diff] [blame]662 </tr>
663
664 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]665 <td><a href="command-line-options.html#intent">-intent <var>type</var></a></td>
666 <td>type of rendering intent when managing the image color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]667 </tr>
668
669 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]670 <td><a href="command-line-options.html#interlace">-interlace <var>type</var></a></td>
671 <td>type of image interlacing scheme</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]672 </tr>
673
674 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]675 <td><a href="command-line-options.html#interline-spacing">-interline-spacing <var>value</var></a></td>
676 <td>the space between two text lines</td>
cristyf3bb4782009-09-08 13:10:04 +0000[diff] [blame]677 </tr>
678
679 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]680 <td><a href="command-line-options.html#interpolate">-interpolate <var>method</var></a></td>
681 <td>pixel color interpolation method</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]682 </tr>
683
684 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]685 <td><a href="command-line-options.html#interword-spacing">-interword-spacing <var>value</var></a></td>
686 <td>the space between two words</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]687 </tr>
688
689 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]690 <td><a href="command-line-options.html#kerning">-kerning <var>value</var></a></td>
691 <td>the space between two characters</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]692 </tr>
693
694 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]695 <td><a href="command-line-options.html#kuwahara">-kuwahara <var>geometry</var></a></td>
696 <td>edge preserving noise reduction filter</td>
cristy97f96862014-11-03 12:28:08 +0000[diff] [blame]697 </tr>
698
699 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]700 <td><a href="command-line-options.html#label">-label <var>string</var></a></td>
701 <td>assign a label to an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]702 </tr>
703
704 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]705 <td><a href="command-line-options.html#lat">-lat <var>geometry</var></a></td>
706 <td>local adaptive thresholding</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]707 </tr>
708
709 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]710 <td><a href="command-line-options.html#layers">-layers <var>method</var></a></td>
711 <td>optimize or compare image layers</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]712 </tr>
713
714 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]715 <td><a href="command-line-options.html#level">-level <var>value</var></a></td>
716 <td>adjust the level of image contrast</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]717 </tr>
718
719 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]720 <td><a href="command-line-options.html#limit">-limit <var>type value</var></a></td>
721 <td>pixel cache resource limit</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]722 </tr>
723
724 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]725 <td><a href="command-line-options.html#linear-stretch">-linear-stretch <var>geometry</var></a></td>
726 <td>linear with saturation histogram stretch</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]727 </tr>
728
729 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]730 <td><a href="command-line-options.html#liquid-rescale">-liquid-rescale <var>geometry</var></a></td>
731 <td>rescale image with seam-carving</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]732 </tr>
733
734 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]735 <td><a href="command-line-options.html#list">-list <var>type</var></a></td>
736 <td>Color, Configure, Delegate, Format, Magic, Module, Resource, or Type</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]737 </tr>
738
739 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]740 <td><a href="command-line-options.html#log">-log <var>format</var></a></td>
741 <td>format of debugging information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]742 </tr>
743
744 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]745 <td><a href="command-line-options.html#loop">-loop <var>iterations</var></a></td>
746 <td>add Netscape loop extension to your GIF animation</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]747 </tr>
748
749 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]750 <td><a href="command-line-options.html#mattecolor">-mattecolor <var>color</var></a></td>
751 <td>frame color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]752 </tr>
753
754 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]755 <td><a href="command-line-options.html#median">-median <var>radius</var></a></td>
756 <td>apply a median filter to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]757 </tr>
758
759 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]760 <td><a href="command-line-options.html#mean-shift">-mean-shift <var>geometry</var></a></td>
761 <td>delineate arbitrarily shaped clusters in the image</td>
cristy91469932014-07-25 11:00:25 +0000[diff] [blame]762 </tr>
763
764 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]765 <td><a href="command-line-options.html#metric">-metric <var>type</var></a></td>
766 <td>measure differences between images with this metric</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]767 </tr>
768
769 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]770 <td><a href="command-line-options.html#mode">-mode <var>radius</var></a></td>
771 <td>make each pixel the 'predominant color' of the neighborhood</td>
cristybe3c5be2011-03-05 17:35:07 +0000[diff] [blame]772 </tr>
773
774 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]775 <td><a href="command-line-options.html#modulate">-modulate <var>value</var></a></td>
776 <td>vary the brightness, saturation, and hue</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]777 </tr>
778
779 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]780 <td><a href="command-line-options.html#moments">-moments</a></td>
781 <td>display image moments.</td>
cristyf1b8a092014-02-20 15:46:11 +0000[diff] [blame]782 </tr>
783
784 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]785 <td><a href="command-line-options.html#monitor">-monitor</a></td>
786 <td>monitor progress</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]787 </tr>
788
789 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]790 <td><a href="command-line-options.html#monochrome">-monochrome</a></td>
791 <td>transform image to black and white</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]792 </tr>
793
794 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]795 <td><a href="command-line-options.html#morph">-morph <var>value</var></a></td>
796 <td>morph an image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]797 </tr>
798
799 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]800 <td><a href="command-line-options.html#morphology">-morphology <var>method</var></a> <var>kernel</var></td>
801 <td>apply a morphology method to the image</td>
cristy488844c2010-01-22 14:02:05 +0000[diff] [blame]802 </tr>
803
804 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]805 <td><a href="command-line-options.html#motion-blur">-motion-blur <var>geometry</var></a></td>
806 <td>simulate motion blur</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]807 </tr>
808
809 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]810 <td><a href="command-line-options.html#negate">-negate</a></td>
811 <td>replace each pixel with its complementary color </td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]812 </tr>
813
814 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]815 <td><a href="command-line-options.html#noise">-noise <var>radius</var></a></td>
816 <td>add or reduce noise in an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]817 </tr>
818
819 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]820 <td><a href="command-line-options.html#normalize">-normalize</a></td>
821 <td>transform image to span the full range of colors</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]822 </tr>
823
824 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]825 <td><a href="command-line-options.html#opaque">-opaque <var>color</var></a></td>
826 <td>change this color to the fill color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]827 </tr>
828
829 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]830 <td><a href="command-line-options.html#ordered-dither">-ordered-dither <var>NxN</var></a></td>
831 <td>ordered dither the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]832 </tr>
833
834 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]835 <td><a href="command-line-options.html#orient">-orient <var>type</var></a></td>
836 <td>image orientation</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]837 </tr>
838
839 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]840 <td><a href="command-line-options.html#page">-page <var>geometry</var></a></td>
841 <td>size and location of an image canvas (setting)</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]842 </tr>
843
844 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]845 <td><a href="command-line-options.html#paint">-paint <var>radius</var></a></td>
846 <td>simulate an oil painting</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]847 </tr>
848
849 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]850 <td><a href="command-line-options.html#perceptible">-perceptible</a></td>
851 <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]852 </tr>
853
854 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]855 <td><a href="command-line-options.html#ping">-ping</a></td>
856 <td>efficiently determine image attributes</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]857 </tr>
858
859 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]860 <td><a href="command-line-options.html#pointsize">-pointsize <var>value</var></a></td>
861 <td>font point size</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]862 </tr>
863
864 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]865 <td><a href="command-line-options.html#polaroid">-polaroid <var>angle</var></a></td>
866 <td>simulate a Polaroid picture</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]867 </tr>
868
869 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]870 <td><a href="command-line-options.html#poly">-poly <var>terms</var></a></td>
871 <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]872 </tr>
873
874 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]875 <td><a href="command-line-options.html#posterize">-posterize <var>levels</var></a></td>
876 <td>reduce the image to a limited number of color levels</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]877 </tr>
878
879 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]880 <td><a href="command-line-options.html#precision">-precision <var>value</var></a></td>
881 <td>set the maximum number of significant digits to be printed</td>
cristyd43a46b2010-01-21 02:13:41 +0000[diff] [blame]882 </tr>
883
884 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]885 <td><a href="command-line-options.html#preview">-preview <var>type</var></a></td>
886 <td>image preview type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]887 </tr>
888
889 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]890 <td><a href="command-line-options.html#print">-print <var>string</var></a></td>
891 <td>interpret string and print to console</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]892 </tr>
893
894 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]895 <td><a href="command-line-options.html#process">-process <var>image-filter</var></a></td>
896 <td>process the image with a custom image filter</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]897 </tr>
898
899 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]900 <td><a href="command-line-options.html#profile">-profile <var>filename</var></a></td>
901 <td>add, delete, or apply an image profile</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]902 </tr>
903
904 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]905 <td><a href="command-line-options.html#quality">-quality <var>value</var></a></td>
906 <td>JPEG/MIFF/PNG compression level</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]907 </tr>
908
909 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]910 <td><a href="command-line-options.html#quantize">-quantize <var>colorspace</var></a></td>
911 <td>reduce image colors in this colorspace</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]912 </tr>
913
914 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]915 <td><a href="command-line-options.html#quiet">-quiet</a></td>
916 <td>suppress all warning messages</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]917 </tr>
918
919 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]920 <td><a href="command-line-options.html#radial-blur">-radial-blur <var>angle</var></a></td>
921 <td>radial blur the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]922 </tr>
923
924 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]925 <td><a href="command-line-options.html#raise">-raise <var>value</var></a></td>
926 <td>lighten/darken image edges to create a 3-D effect</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]927 </tr>
928
929 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]930 <td><a href="command-line-options.html#random-threshold">-random-threshold <var>low,high</var></a></td>
931 <td>random threshold the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]932 </tr>
933
934 <tr>
Cristye0779712016-07-30 17:25:22 -0400[diff] [blame]935 <td><a href="command-line-options.html#read-mask">-read-mask <var>filename</var></a></td>
936 <td>associate a read mask with the image</td>
937 </tr>
938
939 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]940 <td><a href="command-line-options.html#red-primary">-red-primary <var>point</var></a></td>
941 <td>chromaticity red primary point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]942 </tr>
943
944 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]945 <td><a href="command-line-options.html#regard-warnings">-regard-warnings</a></td>
946 <td>pay attention to warning messages.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]947 </tr>
948
949 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]950 <td><a href="command-line-options.html#region">-region <var>geometry</var></a></td>
951 <td>apply options to a portion of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]952 </tr>
953
954 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]955 <td><a href="command-line-options.html#remap">-remap <var>filename</var></a></td>
956 <td>transform image colors to match this set of colors</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]957 </tr>
958
959 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]960 <td><a href="command-line-options.html#render">-render</a></td>
961 <td>render vector graphics</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]962 </tr>
963
964 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]965 <td><a href="command-line-options.html#repage">-repage <var>geometry</var></a></td>
966 <td>size and location of an image canvas</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]967 </tr>
968
969 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]970 <td><a href="command-line-options.html#resample">-resample <var>geometry</var></a></td>
971 <td>change the resolution of an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]972 </tr>
973
974 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]975 <td><a href="command-line-options.html#resize">-resize <var>geometry</var></a></td>
976 <td>resize the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]977 </tr>
978
979 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]980 <td><a href="command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
981 <td>settings remain in effect until parenthesis boundary.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]982 </tr>
983
984 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]985 <td><a href="command-line-options.html#roll">-roll <var>geometry</var></a></td>
986 <td>roll an image vertically or horizontally</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]987 </tr>
988
989 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]990 <td><a href="command-line-options.html#rotate">-rotate <var>degrees</var></a></td>
991 <td>apply Paeth rotation to the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]992 </tr>
993
994 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]995 <td><a href="command-line-options.html#sample">-sample <var>geometry</var></a></td>
996 <td>scale image with pixel sampling</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]997 </tr>
998
999 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1000 <td><a href="command-line-options.html#sampling-factor">-sampling-factor <var>geometry</var></a></td>
1001 <td>horizontal and vertical sampling factor</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1002 </tr>
1003
1004 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1005 <td><a href="command-line-options.html#scale">-scale <var>geometry</var></a></td>
1006 <td>scale the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1007 </tr>
1008
1009 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1010 <td><a href="command-line-options.html#scene">-scene <var>value</var></a></td>
1011 <td>image scene number</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1012 </tr>
1013
1014 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1015 <td><a href="command-line-options.html#seed">-seed <var>value</var></a></td>
1016 <td>seed a new sequence of pseudo-random numbers</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1017 </tr>
1018
1019 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1020 <td><a href="command-line-options.html#segment">-segment <var>values</var></a></td>
1021 <td>segment an image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1022 </tr>
1023
1024 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1025 <td><a href="command-line-options.html#threshold">-selective-blur <var>geometry</var></a></td>
1026 <td>selectively blur pixels within a contrast threshold</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1027 </tr>
1028
1029 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1030 <td><a href="command-line-options.html#separate">-separate</a></td>
1031 <td>separate an image channel into a grayscale image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1032 </tr>
1033
1034 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1035 <td><a href="command-line-options.html#sepia-tone">-sepia-tone <var>threshold</var></a></td>
1036 <td>simulate a sepia-toned photo</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1037 </tr>
1038
1039 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1040 <td><a href="command-line-options.html#set">-set <var>attribute value</var></a></td>
1041 <td>set an image attribute</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1042 </tr>
1043
1044 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1045 <td><a href="command-line-options.html#shade">-shade <var>degrees</var></a></td>
1046 <td>shade the image using a distant light source</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1047 </tr>
1048
1049 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1050 <td><a href="command-line-options.html#shadow">-shadow <var>geometry</var></a></td>
1051 <td>simulate an image shadow</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1052 </tr>
1053
1054 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1055 <td><a href="command-line-options.html#sharpen">-sharpen <var>geometry</var></a></td>
1056 <td>sharpen the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1057 </tr>
1058
1059 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1060 <td><a href="command-line-options.html#shave">-shave <var>geometry</var></a></td>
1061 <td>shave pixels from the image edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1062 </tr>
1063
1064 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1065 <td><a href="command-line-options.html#shear">-shear <var>geometry</var></a></td>
1066 <td>slide one edge of the image along the X or Y axis</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1067 </tr>
1068
1069 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1070 <td><a href="command-line-options.html#sigmoidal">-sigmoidal-contrast <var>geometry</var></a></td>
1071 <td>increase the contrast without saturating highlights or shadows</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1072 </tr>
1073
1074 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1075 <td><a href="command-line-options.html#smush">-smush <var>offset</var></a></td>
1076 <td>smush an image sequence together</td>
cristy2d67ddd2011-02-13 15:38:23 +0000[diff] [blame]1077 </tr>
1078
1079 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1080 <td><a href="command-line-options.html#size">-size <var>geometry</var></a></td>
1081 <td>width and height of image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1082 </tr>
1083
1084 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1085 <td><a href="command-line-options.html#sketch">-sketch <var>geometry</var></a></td>
1086 <td>simulate a pencil sketch</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1087 </tr>
1088
1089 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1090 <td><a href="command-line-options.html#solarize">-solarize <var>threshold</var></a></td>
1091 <td>negate all pixels above the threshold level</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1092 </tr>
1093
1094 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1095 <td><a href="command-line-options.html#splice">-splice <var>geometry</var></a></td>
1096 <td>splice the background color into the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1097 </tr>
1098
1099 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1100 <td><a href="command-line-options.html#spread">-spread <var>radius</var></a></td>
1101 <td>displace image pixels by a random amount</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1102 </tr>
1103
1104 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1105 <td><a href="command-line-options.html#statistic">-statistic <var>type</var> <var>geometry</var></a></td>
1106 <td>replace each pixel with corresponding statistic from the neighborhood</td>
cristyb52981c2011-03-19 17:09:31 +0000[diff] [blame]1107 </tr>
1108
1109 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1110 <td><a href="command-line-options.html#strip">-strip</a></td>
1111 <td>strip image of all profiles and comments</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1112 </tr>
1113
1114 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1115 <td><a href="command-line-options.html#stroke">-stroke <var>color</var></a></td>
1116 <td>graphic primitive stroke color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1117 </tr>
1118
1119 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1120 <td><a href="command-line-options.html#strokewidth">-strokewidth <var>value</var></a></td>
1121 <td>graphic primitive stroke width</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1122 </tr>
1123
1124 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1125 <td><a href="command-line-options.html#stretch">-stretch <var>type</var></a></td>
1126 <td>render text with this font stretch</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1127 </tr>
1128
1129 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1130 <td><a href="command-line-options.html#style">-style <var>type</var></a></td>
1131 <td>render text with this font style</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1132 </tr>
1133
1134 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1135 <td><a href="command-line-options.html#swap">-swap <var>indexes</var></a></td>
1136 <td>swap two images in the image sequence</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1137 </tr>
1138
1139 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1140 <td><a href="command-line-options.html#swirl">-swirl <var>degrees</var></a></td>
1141 <td>swirl image pixels about the center</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1142 </tr>
1143
1144 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1145 <td><a href="command-line-options.html#synchronize">-synchronize</a></td>
1146 <td>synchronize image to storage device</td>
cristy5063d812010-10-19 16:28:10 +0000[diff] [blame]1147 </tr>
1148
1149 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1150 <td><a href="command-line-options.html#taint">-taint</a></td>
1151 <td>mark the image as modified</td>
cristy5063d812010-10-19 16:28:10 +0000[diff] [blame]1152 </tr>
1153
1154 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1155 <td><a href="command-line-options.html#texture">-texture <var>filename</var></a></td>
1156 <td>name of texture to tile onto the image background</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1157 </tr>
1158
1159 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1160 <td><a href="command-line-options.html#threshold">-threshold <var>value</var></a></td>
1161 <td>threshold the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1162 </tr>
1163
1164 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1165 <td><a href="command-line-options.html#thumbnail">-thumbnail <var>geometry</var></a></td>
1166 <td>create a thumbnail of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1167 </tr>
1168
1169 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1170 <td><a href="command-line-options.html#tile">-tile <var>filename</var></a></td>
1171 <td>tile image when filling a graphic primitive</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1172 </tr>
1173
1174 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1175 <td><a href="command-line-options.html#tile-offset">-tile-offset <var>geometry</var></a></td>
1176 <td>set the image tile offset</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1177 </tr>
1178
1179 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1180 <td><a href="command-line-options.html#tint">-tint <var>value</var></a></td>
1181 <td>tint the image with the fill color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1182 </tr>
1183
1184 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1185 <td><a href="command-line-options.html#transform">-transform</a></td>
1186 <td>affine transform image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1187 </tr>
1188
1189 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1190 <td><a href="command-line-options.html#transparent">-transparent <var>color</var></a></td>
1191 <td>make this color transparent within the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1192 </tr>
1193
1194 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1195 <td><a href="command-line-options.html#transparent-color">-transparent-color <var>color</var></a></td>
1196 <td>transparent color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1197 </tr>
1198
1199 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1200 <td><a href="command-line-options.html#transpose">-transpose</a></td>
1201 <td>flip image in the vertical direction and rotate 90 degrees</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1202 </tr>
1203
1204 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1205 <td><a href="command-line-options.html#transverse">-transverse</a></td>
1206 <td>flop image in the horizontal direction and rotate 270 degrees</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1207 </tr>
1208
1209 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1210 <td><a href="command-line-options.html#treedepth">-treedepth <var>value</var></a></td>
1211 <td>color tree depth</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1212 </tr>
1213
1214 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1215 <td><a href="command-line-options.html#trim">-trim</a></td>
1216 <td>trim image edges</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1217 </tr>
1218
1219 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1220 <td><a href="command-line-options.html#type">-type <var>type</var></a></td>
1221 <td>image type</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1222 </tr>
1223
1224 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1225 <td><a href="command-line-options.html#undercolor">-undercolor <var>color</var></a></td>
1226 <td>annotation bounding box color</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1227 </tr>
1228
1229 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1230 <td><a href="command-line-options.html#unique-colors">-unique-colors</a></td>
1231 <td>discard all but one of any pixel color.</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1232 </tr>
1233
1234 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1235 <td><a href="command-line-options.html#units">-units <var>type</var></a></td>
1236 <td>the units of image resolution</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1237 </tr>
1238
1239 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1240 <td><a href="command-line-options.html#unsharp">-unsharp <var>geometry</var></a></td>
1241 <td>sharpen the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1242 </tr>
1243
1244 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1245 <td><a href="command-line-options.html#verbose">-verbose</a></td>
1246 <td>print detailed information about the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1247 </tr>
1248
1249 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1250 <td><a href="command-line-options.html#version">-version</a></td>
1251 <td>print version information</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1252 </tr>
1253
1254 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1255 <td><a href="command-line-options.html#view">-view</a></td>
1256 <td>FlashPix viewing transforms</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1257 </tr>
1258
1259 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1260 <td><a href="command-line-options.html#vignette">-vignette <var>geometry</var></a></td>
1261 <td>soften the edges of the image in vignette style</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1262 </tr>
1263
1264 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1265 <td><a href="command-line-options.html#virtual-pixel">-virtual-pixel <var>method</var></a></td>
1266 <td>access method for pixels outside the boundaries of the image</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1267 </tr>
1268
1269 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1270 <td><a href="command-line-options.html#wave">-wave <var>geometry</var></a></td>
1271 <td>alter an image along a sine wave</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1272 </tr>
1273
1274 <tr>
Cristye09ed312016-03-06 08:07:39 -0500[diff] [blame]1275 <td><a href="command-line-options.html#wavelet">-wavelet-denoise <var>threshold</var></a></td>
1276 <td>removes noise from the image using a wavelet transform</td>
1277 </tr>
1278
1279 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1280 <td><a href="command-line-options.html#weight">-weight <var>type</var></a></td>
1281 <td>render text with this font weight</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1282 </tr>
1283
1284 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1285 <td><a href="command-line-options.html#white-point">-white-point <var>point</var></a></td>
1286 <td>chromaticity white point</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1287 </tr>
1288
1289 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1290 <td><a href="command-line-options.html#white-threshold">-white-threshold <var>value</var></a></td>
1291 <td>force all pixels above the threshold into white</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1292 </tr>
1293
1294 <tr>
cristyd2432012015-05-04 23:15:15 +0000[diff] [blame]1295 <td><a href="command-line-options.html#write">-write <var>filename</var></a></td>
1296 <td>write images to this file</td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1297 </tr>
Cristye0779712016-07-30 17:25:22 -0400[diff] [blame]1298
1299 <tr>
1300 <td><a href="command-line-options.html#write-mask">-write-mask <var>filename</var></a></td>
1301 <td>associate a write mask with the image</td>
1302 </tr>
1303
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1304</table>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]1305</div>
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