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 153 \r
 154 \r
 155 </div>\r
 156 \r
 157 <div class="main">\r
 158 \r
 159 <p class="navigation-index">[<a href="#usage">Example Usage</a> &bull; <a href="#options">Option Summary</a>]</p>
 160
 161 <p>Use the <kbd>composite</kbd> program to overlap one image over another.  See <a href="../www/command-line-processing.html">Command Line Processing</a> for advice on how to structure your <kbd>composite</kbd> command or see below for example usages of the command.</p>
 162
 163 <div style="margin: auto;">
 164   <h2><a name="usage"></a>Example Usage</h2>
 165 </div>
 166
 167 <p>We list a few examples of the <kbd>composite</kbd> command here to illustrate its usefulness and ease of use.  To get started, lets overlay a smiley face over a rose:</p>
 168
 169 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>composite -gravity center smile.gif  rose: rose-over.png</span></p>
 170 <div class="image">
 171 <p>
 172   <a href="../images/smile.gif"><img src="../images/smile.gif" width="48" height="48" alt="smile" /></a>
 173   <img src="../images/over.gif" width="56" height="46" alt="over" />
 174   <a href="../images/rose.jpg"><img src="../images/rose.jpg" width="70" height="46" alt="rose" /></a>
 175   <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" />
 176   <a href="../images/rose-over.png"><img src="../images/rose-over.png" width="70" height="46" alt="rose" /></a>
 177 </p>
 178 </div>
 179
 180 <p>You can create three-dimensional effect with the <em>Atop</em>:</p>
 181
 182 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>convert -size 70x70 xc:none -fill red -draw 'circle 35,35 10,30' red-circle.png</span><span class='crtout'></span><span class="crtprompt"> $magick&gt; </span><span class='crtin'>convert -size 70x70 xc:none -draw 'circle 35,35 35,20' -negate \ <br/>
 183   -channel A -gaussian-blur 0x8 white-highlight.png</span><span class='crtout'></span><span class="crtprompt"> $magick&gt; </span><span class='crtin'>composite -compose atop -geometry -13-17 white-highlight.png red-circle.png red-ball.png</span></p>
 184
 185 <div class="image">
 186 <p>
 187   <a href="../images/white-highlight.png"><img src="../images/white-highlight.png" width="70" height="70" alt="white highlight" /></a>
 188   <img src="../images/atop.gif" width="56" height="70" alt="atop" />
 189   <a href="../images/red-circle.png"><img src="../images/red-circle.png" width="70" height="70" alt="red circle" /></a>
 190   <img style="margin-top:25px; margin-bottom:25px;" src="../images/right.gif" width="20" height="20" alt="==>" />
 191   <a href="../images/red-ball.png"><img src="../images/red-ball.png" width="70" height="70" alt="red ball" /></a>
 192 </p>
 193 </div>
 194
 195 <p>You can find additional examples of using <kbd>composite</kbd> 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>
 196
 197 <div style="margin: auto;">
 198   <h2><a name="options"></a>Option Summary</h2>
 199 </div>
 200
 201 <p>The <kbd>composite</kbd> command recognizes these options.  Click on an option to get more details about how that option works.</p>
 202
 203 <table class="doc">
 204   <tbody>
 205   <tr>
 206     <th align="left">Option</th>
 207     <th align="left">Description</th>
 208   </tr>
 209
 210   <tr>
 211     <td valign="top"><a href="../www/command-line-options.html#affine">-affine <em class="option">matrix</em></a></td>
 212     <td valign="top">affine transform matrix</td>
 213   </tr>
 214
 215   <tr>
 216     <td valign="top"><a href="../www/command-line-options.html#alpha">-alpha</a></td>
 217     <td valign="top">on, activate, off, deactivate, set, opaque, copy",
 218 transparent, extract, background, or shape the alpha channel</td>
 219   </tr>
 220
 221   <tr>
 222     <td valign="top"><a href="../www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
 223     <td valign="top">decrypt image with this password</td>
 224   </tr>
 225
 226   <tr>
 227     <td valign="top"><a href="../www/command-line-options.html#blend">-blend <em class="option">geometry</em></a></td>
 228     <td valign="top">blend images</td>
 229   </tr>
 230
 231   <tr>
 232     <td valign="top"><a href="../www/command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td>
 233     <td valign="top">chromaticity blue primary point</td>
 234   </tr>
 235
 236
 237   <tr>
 238     <td valign="top"><a href="../www/command-line-options.html#border">-border <em class="option">geometry</em></a></td>
 239     <td valign="top">surround image with a border of color</td>
 240   </tr>
 241
 242   <tr>
 243     <td valign="top"><a href="../www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
 244     <td valign="top">border color</td>
 245   </tr>
 246
 247   <tr>
 248     <td valign="top"><a href="../www/command-line-options.html#channel">-channel <em class="option">type</em></a></td>
 249     <td valign="top">apply option to select image channels</td>
 250   </tr>
 251
 252   <tr>
 253     <td valign="top"><a href="../www/command-line-options.html#colors">-colors <em class="option">value</em></a></td>
 254     <td valign="top">preferred number of colors in the image</td>
 255   </tr>
 256
 257   <tr>
 258     <td valign="top"><a href="../www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
 259     <td valign="top">set image colorspace</td>
 260   </tr>
 261
 262   <tr>
 263     <td valign="top"><a href="../www/command-line-options.html#comment">-comment <em class="option">string</em></a></td>
 264     <td valign="top">annotate image with comment</td>
 265   </tr>
 266
 267   <tr>
 268     <td valign="top"><a href="../www/command-line-options.html#compose">-compose <em class="option">operator</em></a></td>
 269     <td valign="top">set image composite operator</td>
 270   </tr>
 271
 272   <tr>
 273     <td valign="top"><a href="../www/command-line-options.html#compress">-compress <em class="option">type</em></a></td>
 274     <td valign="top">image compression type</td>
 275   </tr>
 276
 277   <tr>
 278     <td valign="top"><a href="../www/command-line-options.html#debug">-debug <em class="option">events</em></a></td>
 279     <td valign="top">display copious debugging information</td>
 280   </tr>
 281
 282   <tr>
 283     <td valign="top"><a href="../www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
 284     <td valign="top">convert cipher pixels to plain</td>
 285   </tr>
 286
 287   <tr>
 288     <td valign="top"><a href="../www/command-line-options.html#define">-define <em class="option">format:option</em></a></td>
 289     <td valign="top">define one or more image format options</td>
 290   </tr>
 291
 292   <tr>
 293     <td valign="top"><a href="../www/command-line-options.html#density">-density <em class="option">geometry</em></a></td>
 294     <td valign="top">horizontal and vertical density of the image</td>
 295   </tr>
 296
 297   <tr>
 298     <td valign="top"><a href="../www/command-line-options.html#depth">-depth <em class="option">value</em></a></td>
 299     <td valign="top">image depth</td>
 300   </tr>
 301
 302   <tr>
 303     <td valign="top"><a href="../www/command-line-options.html#displace">-displace <em class="option">geometry</em></a></td>
 304     <td valign="top">shift image pixels defined by a displacement map</td>
 305   </tr>
 306
 307   <tr>
 308     <td valign="top"><a href="../www/command-line-options.html#dissolve">-dissolve <em class="option">value</em></a></td>
 309     <td valign="top">dissolve the two images a given percent</td>
 310   </tr>
 311
 312   <tr>
 313     <td valign="top"><a href="../www/command-line-options.html#dither">-dither  <em class="option">method</em></a></td>
 314     <td valign="top">apply error diffusion to image</td>
 315   </tr>
 316
 317   <tr>
 318     <td valign="top"><a href="../www/command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td>
 319     <td valign="top">convert plain pixels to cipher pixels</td>
 320   </tr>
 321
 322   <tr>
 323     <td valign="top"><a href="../www/command-line-options.html#encoding">-encoding <em class="option">type</em></a></td>
 324     <td valign="top">text encoding type</td>
 325   </tr>
 326
 327   <tr>
 328     <td valign="top"><a href="../www/command-line-options.html#endian">-endian <em class="option">type</em></a></td>
 329     <td valign="top">endianness (MSB or LSB) of the image</td>
 330   </tr>
 331
 332   <tr>
 333     <td valign="top"><a href="../www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
 334     <td valign="top">extract area from image</td>
 335   </tr>
 336
 337   <tr>
 338     <td valign="top"><a href="../www/command-line-options.html#filter">-filter <em class="option">type</em></a></td>
 339     <td valign="top">use this filter when resizing an image</td>
 340   </tr>
 341
 342   <tr>
 343     <td valign="top"><a href="../www/command-line-options.html#font">-font <em class="option">name</em></a></td>
 344     <td valign="top">render text with this font</td>
 345   </tr>
 346
 347   <tr>
 348     <td valign="top"><a href="../www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
 349     <td valign="top">preferred size or location of the image</td>
 350   </tr>
 351
 352   <tr>
 353     <td valign="top"><a href="../www/command-line-options.html#gravity">-gravity <em class="option">type</em></a></td>
 354     <td valign="top">horizontal and vertical text placement</td>
 355   </tr>
 356
 357   <tr>
 358     <td valign="top"><a href="../www/command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td>
 359     <td valign="top">chromaticity green primary point</td>
 360   </tr>
 361
 362   <tr>
 363     <td valign="top"><a href="../www/command-line-options.html#help">-help</a></td>
 364     <td valign="top">print program options</td>
 365   </tr>
 366
 367   <tr>
 368     <td valign="top"><a href="../www/command-line-options.html#identify">-identify</a></td>
 369     <td valign="top">identify the format and characteristics of the image</td>
 370   </tr>
 371
 372   <tr>
 373     <td valign="top"><a href="../www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
 374     <td valign="top">type of image interlacing scheme</td>
 375   </tr>
 376
 377   <tr>
 378     <td valign="top"><a href="../www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
 379     <td valign="top">pixel color interpolation method</td>
 380   </tr>
 381
 382   <tr>
 383     <td valign="top"><a href="../www/command-line-options.html#label">-label <em class="option">string</em></a></td>
 384     <td valign="top">assign a label to an image</td>
 385   </tr>
 386
 387   <tr>
 388     <td valign="top"><a href="../www/command-line-options.html#level">-level <em class="option">value</em></a></td>
 389     <td valign="top">adjust the level of image contrast</td>
 390   </tr>
 391
 392   <tr>
 393     <td valign="top"><a href="../www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
 394     <td valign="top">pixel cache resource limit</td>
 395   </tr>
 396
 397   <tr>
 398     <td valign="top"><a href="../www/command-line-options.html#log">-log <em class="option">format</em></a></td>
 399     <td valign="top">format of debugging information</td>
 400   </tr>
 401
 402   <tr>
 403     <td valign="top"><a href="../www/command-line-options.html#monitor">-monitor</a></td>
 404     <td valign="top">monitor progress</td>
 405   </tr>
 406
 407   <tr>
 408     <td valign="top"><a href="../www/command-line-options.html#monochrome">-monochrome</a></td>
 409     <td valign="top">transform image to black and white</td>
 410   </tr>
 411
 412   <tr>
 413     <td valign="top"><a href="../www/command-line-options.html#negate">-negate</a></td>
 414     <td valign="top">replace each pixel with its complementary color </td>
 415   </tr>
 416
 417   <tr>
 418     <td valign="top"><a href="../www/command-line-options.html#page">-page <em class="option">geometry</em></a></td>
 419     <td valign="top">size and location of an image canvas (setting)</td>
 420   </tr>
 421
 422   <tr>
 423     <td valign="top"><a href="../www/command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td>
 424     <td valign="top">font point size</td>
 425   </tr>
 426
 427   <tr>
 428     <td valign="top"><a href="../www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
 429     <td valign="top">add, delete, or apply an image profile</td>
 430   </tr>
 431
 432   <tr>
 433     <td valign="top"><a href="../www/command-line-options.html#quality">-quality <em class="option">value</em></a></td>
 434     <td valign="top">JPEG/MIFF/PNG compression level</td>
 435   </tr>
 436
 437   <tr>
 438     <td valign="top"><a href="../www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
 439     <td valign="top">reduce image colors in this colorspace</td>
 440   </tr>
 441
 442   <tr>
 443     <td valign="top"><a href="../www/command-line-options.html#quiet">-quiet</a></td>
 444     <td valign="top">suppress all warning messages</td>
 445   </tr>
 446
 447   <tr>
 448     <td valign="top"><a href="../www/command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td>
 449     <td valign="top">chromaticity red primary point</td>
 450   </tr>
 451
 452   <tr>
 453     <td valign="top"><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
 454     <td valign="top">pay attention to warning messages.</td>
 455   </tr>
 456
 457   <tr>
 458     <td valign="top"><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
 459     <td valign="top">settings remain in effect until parenthesis boundary.</td>
 460   </tr>
 461
 462   <tr>
 463     <td valign="top"><a href="../www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
 464     <td valign="top">apply Paeth rotation to the image</td>
 465   </tr>
 466
 467   <tr>
 468     <td valign="top"><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
 469     <td valign="top">horizontal and vertical sampling factor</td>
 470   </tr>
 471
 472   <tr>
 473     <td valign="top"><a href="../www/command-line-options.html#scene">-scene <em class="option">value</em></a></td>
 474     <td valign="top">image scene number</td>
 475   </tr>
 476
 477   <tr>
 478     <td valign="top"><a href="../www/command-line-options.html#seed">-seed <em class="option">value</em></a></td>
 479     <td valign="top">seed a new sequence of pseudo-random numbers</td>
 480   </tr>
 481
 482   <tr>
 483     <td valign="top"><a href="../www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
 484     <td valign="top">set an image attribute</td>
 485   </tr>
 486
 487   <tr>
 488     <td valign="top"><a href="../www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
 489     <td valign="top">sharpen the image</td>
 490   </tr>
 491
 492   <tr>
 493     <td valign="top"><a href="../www/command-line-options.html#shave">-shave <em class="option">geometry</em></a></td>
 494     <td valign="top">shave pixels from the image edges</td>
 495   </tr>
 496
 497   <tr>
 498     <td valign="top"><a href="../www/command-line-options.html#size">-size <em class="option">geometry</em></a></td>
 499     <td valign="top">width and height of image</td>
 500   </tr>
 501
 502   <tr>
 503     <td valign="top"><a href="../www/command-line-options.html#stegano">-stegano <em>offset</em></a></td>
 504     <td valign="top">hide watermark within an image</td>
 505   </tr>
 506
 507   <tr>
 508     <td valign="top"><a href="../www/command-line-options.html#stereo">-stereo <em class="option">geometry</em></a></td>
 509     <td valign="top">combine two image to create a stereo anaglyph</td>
 510   </tr>
 511
 512   <tr>
 513     <td valign="top"><a href="../www/command-line-options.html#strip">-strip</a></td>
 514     <td valign="top">strip image of all profiles and comments</td>
 515   </tr>
 516
 517   <tr>
 518     <td valign="top"><a href="../www/command-line-options.html#swap">-swap <em class="option">indexes</em></a></td>
 519     <td valign="top">swap two images in the image sequence</td>
 520   </tr>
 521
 522   <tr>
 523     <td valign="top"><a href="../www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td>
 524     <td valign="top">create a thumbnail of the image</td>
 525   </tr>
 526
 527   <tr>
 528     <td valign="top"><a href="../www/command-line-options.html#tile">-tile</a></td>
 529     <td valign="top">repeat composite operation across and down image</td>
 530   </tr>
 531
 532   <tr>
 533     <td valign="top"><a href="../www/command-line-options.html#transform">-transform</a></td>
 534     <td valign="top">affine transform image</td>
 535   </tr>
 536
 537   <tr>
 538     <td valign="top"><a href="../www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
 539     <td valign="top">transparent color</td>
 540   </tr>
 541
 542   <tr>
 543     <td valign="top"><a href="../www/command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td>
 544     <td valign="top">color tree depth</td>
 545   </tr>
 546
 547   <tr>
 548     <td valign="top"><a href="../www/command-line-options.html#type">-type <em class="option">type</em></a></td>
 549     <td valign="top">image type</td>
 550   </tr>
 551
 552   <tr>
 553     <td valign="top"><a href="../www/command-line-options.html#units">-units <em class="option">type</em></a></td>
 554     <td valign="top">the units of image resolution</td>
 555   </tr>
 556
 557   <tr>
 558     <td valign="top"><a href="../www/command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td>
 559     <td valign="top">sharpen the image</td>
 560   </tr>
 561
 562   <tr>
 563     <td valign="top"><a href="../www/command-line-options.html#verbose">-verbose</a></td>
 564     <td valign="top">print detailed information about the image</td>
 565   </tr>
 566
 567   <tr>
 568     <td valign="top"><a href="../www/command-line-options.html#version">-version</a></td>
 569     <td valign="top">print version information</td>
 570   </tr>
 571
 572   <tr>
 573     <td valign="top"><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
 574     <td valign="top">access method for pixels outside the boundaries of the image</td>
 575   </tr>
 576
 577   <tr>
 578     <td valign="top"><a href="../www/command-line-options.html#watermark">-watermark <em class="option">geometry</em></a></td>
 579     <td valign="top">percent brightness and saturation of a watermark</td>
 580   </tr>
 581
 582   <tr>
 583     <td valign="top"><a href="../www/command-line-options.html#white-point">-white-point <em class="option">point</em></a></td>
 584     <td valign="top">chromaticity white point</td>
 585   </tr>
 586
 587   <tr>
 588     <td valign="top"><a href="../www/command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td>
 589     <td valign="top">force all pixels above the threshold into white</td>
 590   </tr>
 591
 592   <tr>
 593     <td valign="top"><a href="../www/command-line-options.html#write">-write <em class="option">filename</em></a></td>
 594     <td valign="top">write images to this file</td>
 595   </tr>
 596
 597   </tbody>
 598 </table>
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