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 168 <p class="navigation-index">[<a href="#usage">Example Usage</a> &bull; <a href="#options">Option Summary</a>]</p>
 169
 170 <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>
 171
 172 <div style="margin: auto;">
 173   <h2><a name="usage"></a>Example Usage</h2>
 174 </div>
 175
 176 <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>
 177
 178 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>composite -gravity center smile.gif  rose: rose-over.png</span></p>
 179 <div class="image">
 180 <p>
 181   <a href="../images/smile.gif"><img src="../images/smile.gif" width="48" height="48" alt="smile" /></a>
 182   <img src="../images/over.gif" width="56" height="46" alt="over" />
 183   <a href="../images/rose.jpg"><img src="../images/rose.jpg" width="70" height="46" alt="rose" /></a>
 184   <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" />
 185   <a href="../images/rose-over.png"><img src="../images/rose-over.png" width="70" height="46" alt="rose" /></a>
 186 </p>
 187 </div>
 188
 189 <p>You can create three-dimensional effect with the <em>Atop</em>:</p>
 190
 191 <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/>
 192   -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>
 193
 194 <div class="image">
 195 <p>
 196   <a href="../images/white-highlight.png"><img src="../images/white-highlight.png" width="70" height="70" alt="white highlight" /></a>
 197   <img src="../images/atop.gif" width="56" height="70" alt="atop" />
 198   <a href="../images/red-circle.png"><img src="../images/red-circle.png" width="70" height="70" alt="red circle" /></a>
 199   <img style="margin-top:25px; margin-bottom:25px;" src="../images/right.gif" width="20" height="20" alt="==>" />
 200   <a href="../images/red-ball.png"><img src="../images/red-ball.png" width="70" height="70" alt="red ball" /></a>
 201 </p>
 202 </div>
 203
 204 <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>
 205
 206 <div style="margin: auto;">
 207   <h2><a name="options"></a>Option Summary</h2>
 208 </div>
 209
 210 <p>The <kbd>composite</kbd> command recognizes these options.  Click on an option to get more details about how that option works.</p>
 211
 212 <table class="doc">
 213   <tbody>
 214   <tr>
 215     <th align="left">Option</th>
 216     <th align="left">Description</th>
 217   </tr>
 218
 219   <tr>
 220     <td valign="top"><a href="../www/command-line-options.html#affine">-affine <em class="option">matrix</em></a></td>
 221     <td valign="top">affine transform matrix</td>
 222   </tr>
 223
 224   <tr>
 225     <td valign="top"><a href="../www/command-line-options.html#alpha">-alpha</a></td>
 226     <td valign="top">on, activate, off, deactivate, set, opaque, copy",
 227 transparent, extract, background, or shape the alpha channel</td>
 228   </tr>
 229
 230   <tr>
 231     <td valign="top"><a href="../www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
 232     <td valign="top">decrypt image with this password</td>
 233   </tr>
 234
 235   <tr>
 236     <td valign="top"><a href="../www/command-line-options.html#blend">-blend <em class="option">geometry</em></a></td>
 237     <td valign="top">blend images</td>
 238   </tr>
 239
 240   <tr>
 241     <td valign="top"><a href="../www/command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td>
 242     <td valign="top">chromaticity blue primary point</td>
 243   </tr>
 244
 245
 246   <tr>
 247     <td valign="top"><a href="../www/command-line-options.html#border">-border <em class="option">geometry</em></a></td>
 248     <td valign="top">surround image with a border of color</td>
 249   </tr>
 250
 251   <tr>
 252     <td valign="top"><a href="../www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
 253     <td valign="top">border color</td>
 254   </tr>
 255
 256   <tr>
 257     <td valign="top"><a href="../www/command-line-options.html#channel">-channel <em class="option">type</em></a></td>
 258     <td valign="top">apply option to select image channels</td>
 259   </tr>
 260
 261   <tr>
 262     <td valign="top"><a href="../www/command-line-options.html#colors">-colors <em class="option">value</em></a></td>
 263     <td valign="top">preferred number of colors in the image</td>
 264   </tr>
 265
 266   <tr>
 267     <td valign="top"><a href="../www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
 268     <td valign="top">set image colorspace</td>
 269   </tr>
 270
 271   <tr>
 272     <td valign="top"><a href="../www/command-line-options.html#comment">-comment <em class="option">string</em></a></td>
 273     <td valign="top">annotate image with comment</td>
 274   </tr>
 275
 276   <tr>
 277     <td valign="top"><a href="../www/command-line-options.html#compose">-compose <em class="option">operator</em></a></td>
 278     <td valign="top">set image composite operator</td>
 279   </tr>
 280
 281   <tr>
 282     <td valign="top"><a href="../www/command-line-options.html#compress">-compress <em class="option">type</em></a></td>
 283     <td valign="top">image compression type</td>
 284   </tr>
 285
 286   <tr>
 287     <td valign="top"><a href="../www/command-line-options.html#debug">-debug <em class="option">events</em></a></td>
 288     <td valign="top">display copious debugging information</td>
 289   </tr>
 290
 291   <tr>
 292     <td valign="top"><a href="../www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
 293     <td valign="top">convert cipher pixels to plain</td>
 294   </tr>
 295
 296   <tr>
 297     <td valign="top"><a href="../www/command-line-options.html#define">-define <em class="option">format:option</em></a></td>
 298     <td valign="top">define one or more image format options</td>
 299   </tr>
 300
 301   <tr>
 302     <td valign="top"><a href="../www/command-line-options.html#density">-density <em class="option">geometry</em></a></td>
 303     <td valign="top">horizontal and vertical density of the image</td>
 304   </tr>
 305
 306   <tr>
 307     <td valign="top"><a href="../www/command-line-options.html#depth">-depth <em class="option">value</em></a></td>
 308     <td valign="top">image depth</td>
 309   </tr>
 310
 311   <tr>
 312     <td valign="top"><a href="../www/command-line-options.html#displace">-displace <em class="option">geometry</em></a></td>
 313     <td valign="top">shift image pixels defined by a displacement map</td>
 314   </tr>
 315
 316   <tr>
 317     <td valign="top"><a href="../www/command-line-options.html#dissolve">-dissolve <em class="option">value</em></a></td>
 318     <td valign="top">dissolve the two images a given percent</td>
 319   </tr>
 320
 321   <tr>
 322     <td valign="top"><a href="../www/command-line-options.html#dither">-dither  <em class="option">method</em></a></td>
 323     <td valign="top">apply error diffusion to image</td>
 324   </tr>
 325
 326   <tr>
 327     <td valign="top"><a href="../www/command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td>
 328     <td valign="top">convert plain pixels to cipher pixels</td>
 329   </tr>
 330
 331   <tr>
 332     <td valign="top"><a href="../www/command-line-options.html#encoding">-encoding <em class="option">type</em></a></td>
 333     <td valign="top">text encoding type</td>
 334   </tr>
 335
 336   <tr>
 337     <td valign="top"><a href="../www/command-line-options.html#endian">-endian <em class="option">type</em></a></td>
 338     <td valign="top">endianness (MSB or LSB) of the image</td>
 339   </tr>
 340
 341   <tr>
 342     <td valign="top"><a href="../www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
 343     <td valign="top">extract area from image</td>
 344   </tr>
 345
 346   <tr>
 347     <td valign="top"><a href="../www/command-line-options.html#filter">-filter <em class="option">type</em></a></td>
 348     <td valign="top">use this filter when resizing an image</td>
 349   </tr>
 350
 351   <tr>
 352     <td valign="top"><a href="../www/command-line-options.html#font">-font <em class="option">name</em></a></td>
 353     <td valign="top">render text with this font</td>
 354   </tr>
 355
 356   <tr>
 357     <td valign="top"><a href="../www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
 358     <td valign="top">preferred size or location of the image</td>
 359   </tr>
 360
 361   <tr>
 362     <td valign="top"><a href="../www/command-line-options.html#gravity">-gravity <em class="option">type</em></a></td>
 363     <td valign="top">horizontal and vertical text placement</td>
 364   </tr>
 365
 366   <tr>
 367     <td valign="top"><a href="../www/command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td>
 368     <td valign="top">chromaticity green primary point</td>
 369   </tr>
 370
 371   <tr>
 372     <td valign="top"><a href="../www/command-line-options.html#help">-help</a></td>
 373     <td valign="top">print program options</td>
 374   </tr>
 375
 376   <tr>
 377     <td valign="top"><a href="../www/command-line-options.html#identify">-identify</a></td>
 378     <td valign="top">identify the format and characteristics of the image</td>
 379   </tr>
 380
 381   <tr>
 382     <td valign="top"><a href="../www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
 383     <td valign="top">type of image interlacing scheme</td>
 384   </tr>
 385
 386   <tr>
 387     <td valign="top"><a href="../www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
 388     <td valign="top">pixel color interpolation method</td>
 389   </tr>
 390
 391   <tr>
 392     <td valign="top"><a href="../www/command-line-options.html#label">-label <em class="option">string</em></a></td>
 393     <td valign="top">assign a label to an image</td>
 394   </tr>
 395
 396   <tr>
 397     <td valign="top"><a href="../www/command-line-options.html#level">-level <em class="option">value</em></a></td>
 398     <td valign="top">adjust the level of image contrast</td>
 399   </tr>
 400
 401   <tr>
 402     <td valign="top"><a href="../www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
 403     <td valign="top">pixel cache resource limit</td>
 404   </tr>
 405
 406   <tr>
 407     <td valign="top"><a href="../www/command-line-options.html#log">-log <em class="option">format</em></a></td>
 408     <td valign="top">format of debugging information</td>
 409   </tr>
 410
 411   <tr>
 412     <td valign="top"><a href="../www/command-line-options.html#monitor">-monitor</a></td>
 413     <td valign="top">monitor progress</td>
 414   </tr>
 415
 416   <tr>
 417     <td valign="top"><a href="../www/command-line-options.html#monochrome">-monochrome</a></td>
 418     <td valign="top">transform image to black and white</td>
 419   </tr>
 420
 421   <tr>
 422     <td valign="top"><a href="../www/command-line-options.html#negate">-negate</a></td>
 423     <td valign="top">replace each pixel with its complementary color </td>
 424   </tr>
 425
 426   <tr>
 427     <td valign="top"><a href="../www/command-line-options.html#page">-page <em class="option">geometry</em></a></td>
 428     <td valign="top">size and location of an image canvas (setting)</td>
 429   </tr>
 430
 431   <tr>
 432     <td valign="top"><a href="../www/command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td>
 433     <td valign="top">font point size</td>
 434   </tr>
 435
 436   <tr>
 437     <td valign="top"><a href="../www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
 438     <td valign="top">add, delete, or apply an image profile</td>
 439   </tr>
 440
 441   <tr>
 442     <td valign="top"><a href="../www/command-line-options.html#quality">-quality <em class="option">value</em></a></td>
 443     <td valign="top">JPEG/MIFF/PNG compression level</td>
 444   </tr>
 445
 446   <tr>
 447     <td valign="top"><a href="../www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
 448     <td valign="top">reduce image colors in this colorspace</td>
 449   </tr>
 450
 451   <tr>
 452     <td valign="top"><a href="../www/command-line-options.html#quiet">-quiet</a></td>
 453     <td valign="top">suppress all warning messages</td>
 454   </tr>
 455
 456   <tr>
 457     <td valign="top"><a href="../www/command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td>
 458     <td valign="top">chromaticity red primary point</td>
 459   </tr>
 460
 461   <tr>
 462     <td valign="top"><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
 463     <td valign="top">pay attention to warning messages.</td>
 464   </tr>
 465
 466   <tr>
 467     <td valign="top"><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
 468     <td valign="top">settings remain in effect until parenthesis boundary.</td>
 469   </tr>
 470
 471   <tr>
 472     <td valign="top"><a href="../www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
 473     <td valign="top">apply Paeth rotation to the image</td>
 474   </tr>
 475
 476   <tr>
 477     <td valign="top"><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
 478     <td valign="top">horizontal and vertical sampling factor</td>
 479   </tr>
 480
 481   <tr>
 482     <td valign="top"><a href="../www/command-line-options.html#scene">-scene <em class="option">value</em></a></td>
 483     <td valign="top">image scene number</td>
 484   </tr>
 485
 486   <tr>
 487     <td valign="top"><a href="../www/command-line-options.html#seed">-seed <em class="option">value</em></a></td>
 488     <td valign="top">seed a new sequence of pseudo-random numbers</td>
 489   </tr>
 490
 491   <tr>
 492     <td valign="top"><a href="../www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
 493     <td valign="top">set an image attribute</td>
 494   </tr>
 495
 496   <tr>
 497     <td valign="top"><a href="../www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
 498     <td valign="top">sharpen the image</td>
 499   </tr>
 500
 501   <tr>
 502     <td valign="top"><a href="../www/command-line-options.html#shave">-shave <em class="option">geometry</em></a></td>
 503     <td valign="top">shave pixels from the image edges</td>
 504   </tr>
 505
 506   <tr>
 507     <td valign="top"><a href="../www/command-line-options.html#size">-size <em class="option">geometry</em></a></td>
 508     <td valign="top">width and height of image</td>
 509   </tr>
 510
 511   <tr>
 512     <td valign="top"><a href="../www/command-line-options.html#stegano">-stegano <em>offset</em></a></td>
 513     <td valign="top">hide watermark within an image</td>
 514   </tr>
 515
 516   <tr>
 517     <td valign="top"><a href="../www/command-line-options.html#stereo">-stereo <em class="option">geometry</em></a></td>
 518     <td valign="top">combine two image to create a stereo anaglyph</td>
 519   </tr>
 520
 521   <tr>
 522     <td valign="top"><a href="../www/command-line-options.html#strip">-strip</a></td>
 523     <td valign="top">strip image of all profiles and comments</td>
 524   </tr>
 525
 526   <tr>
 527     <td valign="top"><a href="../www/command-line-options.html#swap">-swap <em class="option">indexes</em></a></td>
 528     <td valign="top">swap two images in the image sequence</td>
 529   </tr>
 530
 531   <tr>
 532     <td valign="top"><a href="../www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td>
 533     <td valign="top">create a thumbnail of the image</td>
 534   </tr>
 535
 536   <tr>
 537     <td valign="top"><a href="../www/command-line-options.html#tile">-tile</a></td>
 538     <td valign="top">repeat composite operation across and down image</td>
 539   </tr>
 540
 541   <tr>
 542     <td valign="top"><a href="../www/command-line-options.html#transform">-transform</a></td>
 543     <td valign="top">affine transform image</td>
 544   </tr>
 545
 546   <tr>
 547     <td valign="top"><a href="../www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
 548     <td valign="top">transparent color</td>
 549   </tr>
 550
 551   <tr>
 552     <td valign="top"><a href="../www/command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td>
 553     <td valign="top">color tree depth</td>
 554   </tr>
 555
 556   <tr>
 557     <td valign="top"><a href="../www/command-line-options.html#type">-type <em class="option">type</em></a></td>
 558     <td valign="top">image type</td>
 559   </tr>
 560
 561   <tr>
 562     <td valign="top"><a href="../www/command-line-options.html#units">-units <em class="option">type</em></a></td>
 563     <td valign="top">the units of image resolution</td>
 564   </tr>
 565
 566   <tr>
 567     <td valign="top"><a href="../www/command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td>
 568     <td valign="top">sharpen the image</td>
 569   </tr>
 570
 571   <tr>
 572     <td valign="top"><a href="../www/command-line-options.html#verbose">-verbose</a></td>
 573     <td valign="top">print detailed information about the image</td>
 574   </tr>
 575
 576   <tr>
 577     <td valign="top"><a href="../www/command-line-options.html#version">-version</a></td>
 578     <td valign="top">print version information</td>
 579   </tr>
 580
 581   <tr>
 582     <td valign="top"><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
 583     <td valign="top">access method for pixels outside the boundaries of the image</td>
 584   </tr>
 585
 586   <tr>
 587     <td valign="top"><a href="../www/command-line-options.html#watermark">-watermark <em class="option">geometry</em></a></td>
 588     <td valign="top">percent brightness and saturation of a watermark</td>
 589   </tr>
 590
 591   <tr>
 592     <td valign="top"><a href="../www/command-line-options.html#white-point">-white-point <em class="option">point</em></a></td>
 593     <td valign="top">chromaticity white point</td>
 594   </tr>
 595
 596   <tr>
 597     <td valign="top"><a href="../www/command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td>
 598     <td valign="top">force all pixels above the threshold into white</td>
 599   </tr>
 600
 601   <tr>
 602     <td valign="top"><a href="../www/command-line-options.html#write">-write <em class="option">filename</em></a></td>
 603     <td valign="top">write images to this file</td>
 604   </tr>
 605
 606   </tbody>
 607 </table>
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