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| 92 | <td id="main" valign="top"> |
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| 93 | <p class="navigation-index">[<a href="#usage">Example Usage</a> • <a href="#options">Option Summary</a>]</p> |
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| 94 | |
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| 95 | <p>Use the <kbd>convert</kbd> 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="../www/command-line-processing.html">Command Line Processing</a> for advice on how to structure your <kbd>convert</kbd> command or see below for example usages of the command.</p> |
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| 96 | |
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| 97 | <div style="margin: auto;"> |
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| 98 | <h2><a name="usage"></a>Example Usage</h2> |
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| 99 | </div> |
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| 100 | |
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| 101 | <p>We list a few examples of the <kbd>convert</kbd> command here to illustrate its usefulness and ease of use. To get started, lets convert an image in the JPEG format to PNG:</p> |
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| 102 | |
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| 103 | <pre class="text"> |
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| 104 | convert rose.jpg rose.png |
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| 105 | </pre> |
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| 106 | |
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| 107 | <p>Next, we reduce the image size before it is written to the PNG format:</p> |
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| 108 | |
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| 109 | <pre class="text"> |
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| 110 | convert rose.jpg -resize 50% rose.png |
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| 111 | </pre> |
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| 112 | |
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| 113 | <p class="image"> |
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| 114 | <a href="../images/rose.jpg"><img src="../images/rose.jpg" width="70" height="46" align="middle" alt="rose" /></a> |
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| 115 | <img src="../images/right.gif" width="20" height="20" align="middle" alt="==>" /> |
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| 116 | <a href="../images/rose.png"><img src="../images/rose.png" width="35" height="23" align="middle" alt="rose" /></a> |
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| 117 | </p> |
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| 118 | |
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| 119 | <p>You can combine multiple image-processing operations to produce complex results:</p> |
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| 120 | |
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| 121 | <pre class="text"> |
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| 122 | convert -size 320x85 xc:transparent -font Bookman-DemiItalic -pointsize 72 -draw "text 25,60 'Magick'" \ |
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| 123 | -channel RGBA -gaussian 0x6 -fill darkred -stroke magenta -draw "text 20,55 'Magick'" fuzzy-magick.png |
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| 124 | </pre> |
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| 125 | |
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| 126 | <p class="image"> |
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| 127 | <a href="../images/fuzzy-magick.png"><img src="../images/fuzzy-magick.png" width="320" height="85" align="middle" alt="fuzzy-magick" /></a> |
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| 128 | </p> |
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| 129 | |
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| 130 | <p>You can find additional examples of using <kbd>convert</kbd> in <a href="http://www.imagemagick.org/Usage/" target="173292935">Examples of ImageMagick Usage</a>.</p> |
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| 131 | |
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| 132 | <div style="margin: auto;"> |
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| 133 | <h2><a name="options"></a>Option Summary</h2> |
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| 134 | </div> |
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| 135 | |
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| 136 | <p>The <kbd>convert</kbd> command recognizes these options. Click on an option to get more details about how that option works.</p> |
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| 137 | |
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| 138 | <table id="table" cellpadding="2" cellspacing="0" style="width: 93%"> |
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| 139 | <tbody> |
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| 140 | <tr> |
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| 141 | <th align="left">Option</th> |
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| 142 | <th align="left">Description</th> |
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| 143 | </tr> |
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| 144 | |
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| 145 | <tr> |
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| 146 | <td valign="top"><a href="../www/command-line-options.html#adaptive-blur" target="magick-options">-adaptive-blur <em class="option">geometry</em></a></td> |
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| 147 | <td valign="top">adaptively blur pixels; decrease effect near edges</td> |
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| 148 | </tr> |
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| 149 | |
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| 150 | <tr> |
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| 151 | <td valign="top"><a href="../www/command-line-options.html#adaptive-resize" target="magick-options">-adaptive-resize <em class="option">geometry</em></a></td> |
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| 152 | <td valign="top">adaptively resize image with data dependent triangulation.</td> |
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| 153 | </tr> |
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| 154 | |
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| 155 | <tr> |
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| 156 | <td valign="top"><a href="../www/command-line-options.html#adaptive-sharpen" target="magick-options">-adaptive-sharpen <em class="option">geometry</em></a></td> |
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| 157 | <td valign="top">adaptively sharpen pixels; increase effect near edges</td> |
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| 158 | </tr> |
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| 159 | |
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| 160 | <tr> |
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| 161 | <td valign="top"><a href="../www/command-line-options.html#adjoin" target="magick-options">-adjoin</a></td> |
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| 162 | <td valign="top">join images into a single multi-image file</td> |
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| 163 | </tr> |
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| 164 | |
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| 165 | <tr> |
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| 166 | <td valign="top"><a href="../www/command-line-options.html#affine" target="magick-options">-affine <em class="option">matrix</em></a></td> |
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| 167 | <td valign="top">affine transform matrix</td> |
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| 168 | </tr> |
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| 169 | |
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| 170 | <tr> |
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| 171 | <td valign="top"><a href="../www/command-line-options.html#affinity" target="magick-options">-affinity <em class="option">filename</em></a></td> |
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| 172 | <td valign="top">transform image colors to match this set of colors</td> |
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| 173 | </tr> |
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| 174 | |
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| 175 | <tr> |
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| 176 | <td valign="top"><a href="../www/command-line-options.html#alpha" target="magick-options">-alpha</a></td> |
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| 177 | <td valign="top">activate, deactivate, reset, or set the alpha channel</td> |
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| 178 | </tr> |
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| 179 | |
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| 180 | <tr> |
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| 181 | <td valign="top"><a href="../www/command-line-options.html#annotate" target="magick-options">-annotate <em class="option">geometry text</em></a></td> |
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| 182 | <td valign="top">annotate the image with text</td> |
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| 183 | </tr> |
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| 184 | |
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| 185 | <tr> |
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| 186 | <td valign="top"><a href="../www/command-line-options.html#antialias" target="magick-options">-antialias</a></td> |
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| 187 | <td valign="top">remove pixel-aliasing</td> |
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| 188 | </tr> |
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| 189 | |
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| 190 | <tr> |
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| 191 | <td valign="top"><a href="../www/command-line-options.html#append" target="magick-options">-append</a></td> |
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| 192 | <td valign="top">append an image sequence</td> |
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| 193 | </tr> |
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| 194 | |
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| 195 | <tr> |
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| 196 | <td valign="top"><a href="../www/command-line-options.html#authenticate" target="magick-options">-authenticate <em class="option">value</em></a></td> |
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| 197 | <td valign="top">decipher image with this password</td> |
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| 198 | </tr> |
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| 199 | |
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| 200 | <tr> |
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| 201 | <td valign="top"><a href="../www/command-line-options.html#average" target="magick-options">-average</a></td> |
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| 202 | <td valign="top">average an image sequence</td> |
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| 203 | </tr> |
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| 204 | |
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| 205 | <tr> |
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| 206 | <td valign="top"><a href="../www/command-line-options.html#background" target="magick-options">-background <em class="option">color</em></a></td> |
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| 207 | <td valign="top">background color</td> |
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| 208 | </tr> |
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| 209 | |
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| 210 | <tr> |
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| 211 | <td valign="top"><a href="../www/command-line-options.html#bench" target="magick-options">-bench <em class="option">iterations</em></a></td> |
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| 212 | <td valign="top">measure performance</td> |
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| 213 | </tr> |
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| 214 | |
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| 215 | <tr> |
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| 216 | <td valign="top"><a href="../www/command-line-options.html#bias" target="magick-options">-bias <em class="option">value</em></a></td> |
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| 217 | <td valign="top">add bias when convolving an image</td> |
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| 218 | </tr> |
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| 219 | |
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| 220 | <tr> |
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| 221 | <td valign="top"><a href="../www/command-line-options.html#black-threshold" target="magick-options">-black-threshold <em class="option">value</em></a></td> |
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| 222 | <td valign="top">force all pixels below the threshold into black</td> |
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| 223 | </tr> |
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| 224 | |
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| 225 | <tr> |
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| 226 | <td valign="top"><a href="../www/command-line-options.html#blue-primary" target="magick-options">-blue-primary <em class="option">point</em></a></td> |
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| 227 | <td valign="top">chromaticity blue primary point</td> |
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| 228 | </tr> |
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| 229 | |
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| 230 | <tr> |
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| 231 | <td valign="top"><a href="../www/command-line-options.html#blur" target="magick-options">-blur <em class="option">geometry</em></a></td> |
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| 232 | <td valign="top">reduce image noise and reduce detail levels</td> |
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| 233 | </tr> |
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| 234 | |
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| 235 | <tr> |
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| 236 | <td valign="top"><a href="../www/command-line-options.html#border" target="magick-options">-border <em class="option">geometry</em></a></td> |
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| 237 | <td valign="top">surround image with a border of color</td> |
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| 238 | </tr> |
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| 239 | |
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| 240 | <tr> |
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| 241 | <td valign="top"><a href="../www/command-line-options.html#bordercolor" target="magick-options">-bordercolor <em class="option">color</em></a></td> |
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| 242 | <td valign="top">border color</td> |
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| 243 | </tr> |
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| 244 | |
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| 245 | <tr> |
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| 246 | <td valign="top"><a href="../www/command-line-options.html#caption" target="magick-options">-caption <em class="option">string</em></a></td> |
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| 247 | <td valign="top">assign a caption to an image</td> |
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| 248 | </tr> |
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| 249 | |
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| 250 | <tr> |
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| 251 | <td valign="top"><a href="../www/command-line-options.html#channel" target="magick-options">-channel <em class="option">type</em></a></td> |
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| 252 | <td valign="top">apply option to select image channels</td> |
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| 253 | </tr> |
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| 254 | |
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| 255 | <tr> |
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| 256 | <td valign="top"><a href="../www/command-line-options.html#charcoal" target="magick-options">-charcoal <em class="option">radius</em></a></td> |
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| 257 | <td valign="top">simulate a charcoal drawing</td> |
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| 258 | </tr> |
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| 259 | |
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| 260 | <tr> |
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| 261 | <td valign="top"><a href="../www/command-line-options.html#chop" target="magick-options">-chop <em class="option">geometry</em></a></td> |
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| 262 | <td valign="top">remove pixels from the image interior</td> |
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| 263 | </tr> |
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| 264 | |
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| 265 | <tr> |
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| 266 | <td valign="top"><a href="../www/command-line-options.html#clip" target="magick-options">-clip</a></td> |
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| 267 | <td valign="top">clip along the first path from the 8BIM profile</td> |
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| 268 | </tr> |
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| 269 | |
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| 270 | <tr> |
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| 271 | <td valign="top"><a href="../www/command-line-options.html#clip-mask" target="magick-options">-clip-mask</a> <em class="option">filename</em></td> |
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| 272 | <td valign="top">associate clip mask with the image</td> |
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| 273 | </tr> |
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| 274 | |
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| 275 | <tr> |
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| 276 | <td valign="top"><a href="../www/command-line-options.html#clip-path" target="magick-options">-clip-path <em class="option">id</em></a></td> |
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| 277 | <td valign="top">clip along a named path from the 8BIM profile</td> |
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| 278 | </tr> |
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| 279 | |
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| 280 | <tr> |
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| 281 | <td valign="top"><a href="../www/command-line-options.html#clone" target="magick-options">-clone <em class="option">index</em></a></td> |
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| 282 | <td valign="top">clone an image</td> |
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| 283 | </tr> |
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| 284 | |
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| 285 | <tr> |
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| 286 | <td valign="top"><a href="../www/command-line-options.html#clut" target="magick-options">-clut</a></td> |
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| 287 | <td valign="top">apply a color lookup table to the image</td> |
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| 288 | </tr> |
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| 289 | |
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| 290 | <tr> |
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| 291 | <td valign="top"><a href="../www/command-line-options.html#contrast-stretch" target="magick-options">-contrast-stretch <em class="option">geometry</em></a></td> |
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| 292 | <td valign="top">improve the contrast in an image by `stretching' the range of intensity value</td> |
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| 293 | </tr> |
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| 294 | |
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| 295 | <tr> |
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| 296 | <td valign="top"><a href="../www/command-line-options.html#coalesce" target="magick-options">-coalesce</a></td> |
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| 297 | <td valign="top">merge a sequence of images</td> |
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| 298 | </tr> |
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| 299 | |
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| 300 | <tr> |
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| 301 | <td valign="top"><a href="../www/command-line-options.html#colorize" target="magick-options">-colorize <em class="option">value</em></a></td> |
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| 302 | <td valign="top">colorize the image with the fill color</td> |
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| 303 | </tr> |
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| 304 | |
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| 305 | <tr> |
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| 306 | <td valign="top"><a href="../www/command-line-options.html#colors" target="magick-options">-colors <em class="option">value</em></a></td> |
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| 307 | <td valign="top">preferred number of colors in the image</td> |
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| 308 | </tr> |
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| 309 | |
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| 310 | <tr> |
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| 311 | <td valign="top"><a href="../www/command-line-options.html#colorspace" target="magick-options">-colorspace <em class="option">type</em></a></td> |
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| 312 | <td valign="top">set image colorspace</td> |
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| 313 | </tr> |
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| 314 | |
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| 315 | <tr> |
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| 316 | <td valign="top"><a href="../www/command-line-options.html#combine" target="magick-options">-combine</a></td> |
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| 317 | <td valign="top">combine a sequence of images</td> |
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| 318 | </tr> |
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| 319 | |
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| 320 | <tr> |
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| 321 | <td valign="top"><a href="../www/command-line-options.html#comment" target="magick-options">-comment <em class="option">string</em></a></td> |
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| 322 | <td valign="top">annotate image with comment</td> |
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| 323 | </tr> |
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| 324 | |
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| 325 | <tr> |
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| 326 | <td valign="top"><a href="../www/command-line-options.html#compose" target="magick-options">-compose <em class="option">operator</em></a></td> |
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| 327 | <td valign="top">set image composite operator</td> |
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| 328 | </tr> |
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| 329 | |
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| 330 | <tr> |
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| 331 | <td valign="top"><a href="../www/command-line-options.html#composite" target="magick-options">-composite</a></td> |
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| 332 | <td valign="top">composite image</td> |
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| 333 | </tr> |
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| 334 | |
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| 335 | <tr> |
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| 336 | <td valign="top"><a href="../www/command-line-options.html#compress" target="magick-options">-compress <em class="option">type</em></a></td> |
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| 337 | <td valign="top">image compression type</td> |
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| 338 | </tr> |
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| 339 | |
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| 340 | <tr> |
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| 341 | <td valign="top"><a href="../www/command-line-options.html#contrast" target="magick-options">-contrast</a></td> |
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| 342 | <td valign="top">enhance or reduce the image contrast</td> |
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| 343 | </tr> |
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| 344 | |
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| 345 | <tr> |
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| 346 | <td valign="top"><a href="../www/command-line-options.html#convolve" target="magick-options">-convolve <em class="option">coefficients</em></a></td> |
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| 347 | <td valign="top">apply a convolution kernel to the image</td> |
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| 348 | </tr> |
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| 349 | |
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| 350 | <tr> |
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| 351 | <td valign="top"><a href="../www/command-line-options.html#crop" target="magick-options">-crop <em class="option">geometry</em></a></td> |
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| 352 | <td valign="top">crop the image</td> |
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| 353 | </tr> |
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| 354 | |
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| 355 | <tr> |
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| 356 | <td valign="top"><a href="../www/command-line-options.html#cycle" target="magick-options">-cycle <em class="option">amount</em></a></td> |
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| 357 | <td valign="top">cycle the image colormap</td> |
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| 358 | </tr> |
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| 359 | |
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| 360 | <tr> |
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| 361 | <td valign="top"><a href="../www/command-line-options.html#decipher" target="magick-options">-decipher <em class="option">filename</em></a></td> |
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| 362 | <td valign="top">convert cipher pixels to plain</td> |
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| 363 | </tr> |
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| 364 | |
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| 365 | <tr> |
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| 366 | <td valign="top"><a href="../www/command-line-options.html#debug" target="magick-options">-debug <em class="option">events</em></a></td> |
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| 367 | <td valign="top">display copious debugging information</td> |
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| 368 | </tr> |
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| 369 | |
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| 370 | <tr> |
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| 371 | <td valign="top"><a href="../www/command-line-options.html#define" target="magick-options">-define <em class="option">format:option</em></a></td> |
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| 372 | <td valign="top">define one or more image format options</td> |
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| 373 | </tr> |
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| 374 | |
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| 375 | <tr> |
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| 376 | <td valign="top"><a href="../www/command-line-options.html#deconstruct" target="magick-options">-deconstruct</a></td> |
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| 377 | <td valign="top">break down an image sequence into constituent parts</td> |
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| 378 | </tr> |
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| 379 | |
|---|
| 380 | <tr> |
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| 381 | <td valign="top"><a href="../www/command-line-options.html#delay" target="magick-options">-delay <em class="option">value</em></a></td> |
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| 382 | <td valign="top">display the next image after pausing</td> |
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| 383 | </tr> |
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| 384 | |
|---|
| 385 | <tr> |
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| 386 | <td valign="top"><a href="../www/command-line-options.html#delete" target="magick-options">-delete <em class="option">index</em></a></td> |
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| 387 | <td valign="top">delete the image from the image sequence</td> |
|---|
| 388 | </tr> |
|---|
| 389 | |
|---|
| 390 | <tr> |
|---|
| 391 | <td valign="top"><a href="../www/command-line-options.html#density" target="magick-options">-density <em class="option">geometry</em></a></td> |
|---|
| 392 | <td valign="top">horizontal and vertical density of the image</td> |
|---|
| 393 | </tr> |
|---|
| 394 | |
|---|
| 395 | <tr> |
|---|
| 396 | <td valign="top"><a href="../www/command-line-options.html#depth" target="magick-options">-depth <em class="option">value</em></a></td> |
|---|
| 397 | <td valign="top">image depth</td> |
|---|
| 398 | </tr> |
|---|
| 399 | |
|---|
| 400 | <tr> |
|---|
| 401 | <td valign="top"><a href="../www/command-line-options.html#despeckle" target="magick-options">-despeckle</a></td> |
|---|
| 402 | <td valign="top">reduce the speckles within an image</td> |
|---|
| 403 | </tr> |
|---|
| 404 | |
|---|
| 405 | <tr> |
|---|
| 406 | <td valign="top"><a href="../www/command-line-options.html#display" target="magick-options">-display <em class="option">server</em></a></td> |
|---|
| 407 | <td valign="top">get image or font from this X server</td> |
|---|
| 408 | </tr> |
|---|
| 409 | |
|---|
| 410 | <tr> |
|---|
| 411 | <td valign="top"><a href="../www/command-line-options.html#dispose" target="magick-options">-dispose <em class="option">method</em></a></td> |
|---|
| 412 | <td valign="top">layer disposal method</td> |
|---|
| 413 | </tr> |
|---|
| 414 | |
|---|
| 415 | <tr> |
|---|
| 416 | <td valign="top"><a href="../www/command-line-options.html#distort" target="magick-options">-distort <em class="option">type coefficients</em></a></td> |
|---|
| 417 | <td valign="top">distort image</td> |
|---|
| 418 | </tr> |
|---|
| 419 | |
|---|
| 420 | <tr> |
|---|
| 421 | <td valign="top"><a href="../www/command-line-options.html#dither" target="magick-options">-dither <em class="option">method</em></a></td> |
|---|
| 422 | <td valign="top">apply error diffusion to image</td> |
|---|
| 423 | </tr> |
|---|
| 424 | |
|---|
| 425 | <tr> |
|---|
| 426 | <td valign="top"><a href="../www/command-line-options.html#draw" target="magick-options">-draw <em class="option">string</em></a></td> |
|---|
| 427 | <td valign="top">annotate the image with a graphic primitive</td> |
|---|
| 428 | </tr> |
|---|
| 429 | |
|---|
| 430 | <tr> |
|---|
| 431 | <td valign="top"><a href="../www/command-line-options.html#edge" target="magick-options">-edge <em class="option">radius</em></a></td> |
|---|
| 432 | <td valign="top">apply a filter to detect edges in the image</td> |
|---|
| 433 | </tr> |
|---|
| 434 | |
|---|
| 435 | <tr> |
|---|
| 436 | <td valign="top"><a href="../www/command-line-options.html#emboss" target="magick-options">-emboss <em class="option">radius</em></a></td> |
|---|
| 437 | <td valign="top">emboss an image</td> |
|---|
| 438 | </tr> |
|---|
| 439 | |
|---|
| 440 | <tr> |
|---|
| 441 | <td valign="top"><a href="../www/command-line-options.html#encipher" target="magick-options">-encipher <em class="option">filename</em></a></td> |
|---|
| 442 | <td valign="top">convert plain pixels to cipher pixels</td> |
|---|
| 443 | </tr> |
|---|
| 444 | |
|---|
| 445 | <tr> |
|---|
| 446 | <td valign="top"><a href="../www/command-line-options.html#encoding" target="magick-options">-encoding <em class="option">type</em></a></td> |
|---|
| 447 | <td valign="top">text encoding type</td> |
|---|
| 448 | </tr> |
|---|
| 449 | |
|---|
| 450 | <tr> |
|---|
| 451 | <td valign="top"><a href="../www/command-line-options.html#endian" target="magick-options">-endian <em class="option">type</em></a> |
|---|
