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