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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> 219 220<div style="margin: auto;"> 221 <h2><a id="usage"></a>Example Usage</h2> 222</div> 223 224<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> 225 226<p class='crt'><span class="crtprompt"> $magick> </span><span class='crtin'>composite -gravity center smile.gif rose: rose-over.png</span></p> 227<div class="image"> 228<p> 229 <a href="/images/smile.gif"><img src="/images/smile.gif" width="48" height="48" alt="smile" /></a> 230 <img src="/images/over.gif" width="56" height="46" alt="over" /> 231 <a href="/images/rose.jpg"><img src="/images/rose.jpg" width="70" height="46" alt="rose" /></a> 232 <img style="margin-top:13px; margin-bottom:13px;" src="/images/right.gif" width="20" height="20" alt="==>" /> 233 <a href="/images/rose-over.png"><img src="/images/rose-over.png" width="70" height="46" alt="rose" /></a> 234</p> 235</div> 236 237<p>You can create three-dimensional effect with the <em>Atop</em>:</p> 238 239<p class='crt'><span class="crtprompt"> $magick> </span><span class='crtin'>convert -size 70x70 canvas:none -fill red -draw 'circle 35,35 10,30' red-circle.png</span><span class='crtout'></span><span class="crtprompt"> $magick> </span><span class='crtin'>convert -size 70x70 canvas:none -draw 'circle 35,35 35,20' -negate \ <br/> 240 -channel A -gaussian-blur 0x8 white-highlight.png</span><span class='crtout'></span><span class="crtprompt"> $magick> </span><span class='crtin'>composite -compose atop -geometry -13-17 white-highlight.png red-circle.png red-ball.png</span></p> 241 242<div class="image"> 243<p> 244 <a href="/images/white-highlight.png"><img src="/images/white-highlight.png" width="70" height="70" alt="white highlight" /></a> 245 <img src="/images/atop.gif" width="56" height="70" alt="atop" /> 246 <a href="/images/red-circle.png"><img src="/images/red-circle.png" width="70" height="70" alt="red circle" /></a> 247 <img style="margin-top:25px; margin-bottom:25px;" src="/images/right.gif" width="20" height="20" alt="==>" /> 248 <a href="/images/red-ball.png"><img src="/images/red-ball.png" width="70" height="70" alt="red ball" /></a> 249</p> 250</div> 251 252<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> 253 254<div style="margin: auto;"> 255 <h2><a id="options"></a>Option Summary</h2> 256</div> 257 258<p>The <kbd>composite</kbd> command recognizes these options. Click on an option to get more details about how that option works.</p> 259 260<table class="doc"> 261 <tbody> 262 <tr> 263 <th align="left">Option</th> 264 <th align="left">Description</th> 265 </tr> 266 267 <tr> 268 <td valign="top"><a href="/www/command-line-options.html#affine">-affine <em class="option">matrix</em></a></td> 269 <td valign="top">affine transform matrix</td> 270 </tr> 271 272 <tr> 273 <td valign="top"><a href="/www/command-line-options.html#alpha">-alpha</a></td> 274 <td valign="top">on, activate, off, deactivate, set, opaque, copy", 275transparent, extract, background, or shape the alpha channel</td> 276 </tr> 277 278 <tr> 279 <td valign="top"><a href="/www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td> 280 <td valign="top">decrypt image with this password</td> 281 </tr> 282 283 <tr> 284 <td valign="top"><a href="/www/command-line-options.html#blend">-blend <em class="option">geometry</em></a></td> 285 <td valign="top">blend images</td> 286 </tr> 287 288 <tr> 289 <td valign="top"><a href="/www/command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td> 290 <td valign="top">chromaticity blue primary point</td> 291 </tr> 292 293 294 <tr> 295 <td valign="top"><a href="/www/command-line-options.html#border">-border <em class="option">geometry</em></a></td> 296 <td valign="top">surround image with a border of color</td> 297 </tr> 298 299 <tr> 300 <td valign="top"><a href="/www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td> 301 <td valign="top">border color</td> 302 </tr> 303 304 <tr> 305 <td valign="top"><a href="/www/command-line-options.html#channel">-channel <em class="option">type</em></a></td> 306 <td valign="top">apply option to select image channels</td> 307 </tr> 308 309 <tr> 310 <td valign="top"><a href="/www/command-line-options.html#colors">-colors <em class="option">value</em></a></td> 311 <td valign="top">preferred number of colors in the image</td> 312 </tr> 313 314 <tr> 315 <td valign="top"><a href="/www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td> 316 <td valign="top">set image colorspace</td> 317 </tr> 318 319 <tr> 320 <td valign="top"><a href="/www/command-line-options.html#comment">-comment <em class="option">string</em></a></td> 321 <td valign="top">annotate image with comment</td> 322 </tr> 323 324 <tr> 325 <td valign="top"><a href="/www/command-line-options.html#compose">-compose <em class="option">operator</em></a></td> 326 <td valign="top">set image composite operator</td> 327 </tr> 328 329 <tr> 330 <td valign="top"><a href="/www/command-line-options.html#compress">-compress <em class="option">type</em></a></td> 331 <td valign="top">image compression type</td> 332 </tr> 333 334 <tr> 335 <td valign="top"><a href="/www/command-line-options.html#debug">-debug <em class="option">events</em></a></td> 336 <td valign="top">display copious debugging information</td> 337 </tr> 338 339 <tr> 340 <td valign="top"><a href="/www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td> 341 <td valign="top">convert cipher pixels to plain</td> 342 </tr> 343 344 <tr> 345 <td valign="top"><a href="/www/command-line-options.html#define">-define <em class="option">format:option</em></a></td> 346 <td valign="top">define one or more image format options</td> 347 </tr> 348 349 <tr> 350 <td valign="top"><a href="/www/command-line-options.html#density">-density <em class="option">geometry</em></a></td> 351 <td valign="top">horizontal and vertical density of the image</td> 352 </tr> 353 354 <tr> 355 <td valign="top"><a href="/www/command-line-options.html#depth">-depth <em class="option">value</em></a></td> 356 <td valign="top">image depth</td> 357 </tr> 358 359 <tr> 360 <td valign="top"><a href="/www/command-line-options.html#displace">-displace <em class="option">geometry</em></a></td> 361 <td valign="top">shift image pixels defined by a displacement map</td> 362 </tr> 363 364 <tr> 365 <td valign="top"><a href="/www/command-line-options.html#dissolve">-dissolve <em class="option">value</em></a></td> 366 <td valign="top">dissolve the two images a given percent</td> 367 </tr> 368 369 <tr> 370 <td valign="top"><a href="/www/command-line-options.html#dither">-dither <em class="option">method</em></a></td> 371 <td valign="top">apply error diffusion to image</td> 372 </tr> 373 374 <tr> 375 <td valign="top"><a href="/www/command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td> 376 <td valign="top">convert plain pixels to cipher pixels</td> 377 </tr> 378 379 <tr> 380 <td valign="top"><a href="/www/command-line-options.html#encoding">-encoding <em class="option">type</em></a></td> 381 <td valign="top">text encoding type</td> 382 </tr> 383 384 <tr> 385 <td valign="top"><a href="/www/command-line-options.html#endian">-endian <em class="option">type</em></a></td> 386 <td valign="top">endianness (MSB or LSB) of the image</td> 387 </tr> 388 389 <tr> 390 <td valign="top"><a href="/www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td> 391 <td valign="top">extract area from image</td> 392 </tr> 393 394 <tr> 395 <td valign="top"><a href="/www/command-line-options.html#filter">-filter <em class="option">type</em></a></td> 396 <td valign="top">use this filter when resizing an image</td> 397 </tr> 398 399 <tr> 400 <td valign="top"><a href="/www/command-line-options.html#font">-font <em class="option">name</em></a></td> 401 <td valign="top">render text with this font</td> 402 </tr> 403 404 <tr> 405 <td valign="top"><a href="/www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td> 406 <td valign="top">preferred size or location of the image</td> 407 </tr> 408 409 <tr> 410 <td valign="top"><a href="/www/command-line-options.html#gravity">-gravity <em class="option">type</em></a></td> 411 <td valign="top">horizontal and vertical text placement</td> 412 </tr> 413 414 <tr> 415 <td valign="top"><a href="/www/command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td> 416 <td valign="top">chromaticity green primary point</td> 417 </tr> 418 419 <tr> 420 <td valign="top"><a href="/www/command-line-options.html#help">-help</a></td> 421 <td valign="top">print program options</td> 422 </tr> 423 424 <tr> 425 <td valign="top"><a href="/www/command-line-options.html#identify">-identify</a></td> 426 <td valign="top">identify the format and characteristics of the image</td> 427 </tr> 428 429 <tr> 430 <td valign="top"><a href="/www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td> 431 <td valign="top">type of image interlacing scheme</td> 432 </tr> 433 434 <tr> 435 <td valign="top"><a href="/www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td> 436 <td valign="top">pixel color interpolation method</td> 437 </tr> 438 439 <tr> 440 <td valign="top"><a href="/www/command-line-options.html#label">-label <em class="option">string</em></a></td> 441 <td valign="top">assign a label to an image</td> 442 </tr> 443 444 <tr> 445 <td valign="top"><a href="/www/command-line-options.html#level">-level <em class="option">value</em></a></td> 446 <td valign="top">adjust the level of image contrast</td> 447 </tr> 448 449 <tr> 450 <td valign="top"><a href="/www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td> 451 <td valign="top">pixel cache resource limit</td> 452 </tr> 453 454 <tr> 455 <td valign="top"><a href="/www/command-line-options.html#log">-log <em class="option">format</em></a></td> 456 <td valign="top">format of debugging information</td> 457 </tr> 458 459 <tr> 460 <td valign="top"><a href="/www/command-line-options.html#monitor">-monitor</a></td> 461 <td valign="top">monitor progress</td> 462 </tr> 463 464 <tr> 465 <td valign="top"><a href="/www/command-line-options.html#monochrome">-monochrome</a></td> 466 <td valign="top">transform image to black and white</td> 467 </tr> 468 469 <tr> 470 <td valign="top"><a href="/www/command-line-options.html#negate">-negate</a></td> 471 <td valign="top">replace each pixel with its complementary color </td> 472 </tr> 473 474 <tr> 475 <td valign="top"><a href="/www/command-line-options.html#page">-page <em class="option">geometry</em></a></td> 476 <td valign="top">size and location of an image canvas (setting)</td> 477 </tr> 478 479 <tr> 480 <td valign="top"><a href="/www/command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td> 481 <td valign="top">font point size</td> 482 </tr> 483 484 <tr> 485 <td valign="top"><a href="/www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td> 486 <td valign="top">add, delete, or apply an image profile</td> 487 </tr> 488 489 <tr> 490 <td valign="top"><a href="/www/command-line-options.html#quality">-quality <em class="option">value</em></a></td> 491 <td valign="top">JPEG/MIFF/PNG compression level</td> 492 </tr> 493 494 <tr> 495 <td valign="top"><a href="/www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td> 496 <td valign="top">reduce image colors in this colorspace</td> 497 </tr> 498 499 <tr> 500 <td valign="top"><a href="/www/command-line-options.html#quiet">-quiet</a></td> 501 <td valign="top">suppress all warning messages</td> 502 </tr> 503 504 <tr> 505 <td valign="top"><a href="/www/command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td> 506 <td valign="top">chromaticity red primary point</td> 507 </tr> 508 509 <tr> 510 <td valign="top"><a href="/www/command-line-options.html#regard-warnings">-regard-warnings</a></td> 511 <td valign="top">pay attention to warning messages.</td> 512 </tr> 513 514 <tr> 515 <td valign="top"><a href="/www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td> 516 <td valign="top">settings remain in effect until parenthesis boundary.</td> 517 </tr> 518 519 <tr> 520 <td valign="top"><a href="/www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td> 521 <td valign="top">apply Paeth rotation to the image</td> 522 </tr> 523 524 <tr> 525 <td valign="top"><a href="/www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td> 526 <td valign="top">horizontal and vertical sampling factor</td> 527 </tr> 528 529 <tr> 530 <td valign="top"><a href="/www/command-line-options.html#scene">-scene <em class="option">value</em></a></td> 531 <td valign="top">image scene number</td> 532 </tr> 533 534 <tr> 535 <td valign="top"><a href="/www/command-line-options.html#seed">-seed <em class="option">value</em></a></td> 536 <td valign="top">seed a new sequence of pseudo-random numbers</td> 537 </tr> 538 539 <tr> 540 <td valign="top"><a href="/www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td> 541 <td valign="top">set an image attribute</td> 542 </tr> 543 544 <tr> 545 <td valign="top"><a href="/www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td> 546 <td valign="top">sharpen the image</td> 547 </tr> 548 549 <tr> 550 <td valign="top"><a href="/www/command-line-options.html#shave">-shave <em class="option">geometry</em></a></td> 551 <td valign="top">shave pixels from the image edges</td> 552 </tr> 553 554 <tr> 555 <td valign="top"><a href="/www/command-line-options.html#size">-size <em class="option">geometry</em></a></td> 556 <td valign="top">width and height of image</td> 557 </tr> 558 559 <tr> 560 <td valign="top"><a href="/www/command-line-options.html#stegano">-stegano <em>offset</em></a></td> 561 <td valign="top">hide watermark within an image</td> 562 </tr> 563 564 <tr> 565 <td valign="top"><a href="/www/command-line-options.html#stereo">-stereo <em class="option">geometry</em></a></td> 566 <td valign="top">combine two image to create a stereo anaglyph</td> 567 </tr> 568 569 <tr> 570 <td valign="top"><a href="/www/command-line-options.html#strip">-strip</a></td> 571 <td valign="top">strip image of all profiles and comments</td> 572 </tr> 573 574 <tr> 575 <td valign="top"><a href="/www/command-line-options.html#swap">-swap <em class="option">indexes</em></a></td> 576 <td valign="top">swap two images in the image sequence</td> 577 </tr> 578 579 <tr> 580 <td valign="top"><a href="/www/command-line-options.html#synchronize">-synchronize</a></td> 581 <td valign="top">synchronize image to storage device</td> 582 </tr> 583 584 <tr> 585 <td valign="top"><a href="/www/command-line-options.html#taint">-taint</a></td> 586 <td valign="top">mark the image as modified</td> 587 </tr> 588 589 <tr> 590 <td valign="top"><a href="/www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td> 591 <td valign="top">create a thumbnail of the image</td> 592 </tr> 593 594 <tr> 595 <td valign="top"><a href="/www/command-line-options.html#tile">-tile</a></td> 596 <td valign="top">repeat composite operation across and down image</td> 597 </tr> 598 599 <tr> 600 <td valign="top"><a href="/www/command-line-options.html#transform">-transform</a></td> 601 <td valign="top">affine transform image</td> 602 </tr> 603 604 <tr> 605 <td valign="top"><a href="/www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td> 606 <td valign="top">transparent color</td> 607 </tr> 608 609 <tr> 610 <td valign="top"><a href="/www/command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td> 611 <td valign="top">color tree depth</td> 612 </tr> 613 614 <tr> 615 <td valign="top"><a href="/www/command-line-options.html#type">-type <em class="option">type</em></a></td> 616 <td valign="top">image type</td> 617 </tr> 618 619 <tr> 620 <td valign="top"><a href="/www/command-line-options.html#units">-units <em class="option">type</em></a></td> 621 <td valign="top">the units of image resolution</td> 622 </tr> 623 624 <tr> 625 <td valign="top"><a href="/www/command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td> 626 <td valign="top">sharpen the image</td> 627 </tr> 628 629 <tr> 630 <td valign="top"><a href="/www/command-line-options.html#verbose">-verbose</a></td> 631 <td valign="top">print detailed information about the image</td> 632 </tr> 633 634 <tr> 635 <td valign="top"><a href="/www/command-line-options.html#version">-version</a></td> 636 <td valign="top">print version information</td> 637 </tr> 638 639 <tr> 640 <td valign="top"><a href="/www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td> 641 <td valign="top">access method for pixels outside the boundaries of the image</td> 642 </tr> 643 644 <tr> 645 <td valign="top"><a href="/www/command-line-options.html#watermark">-watermark <em class="option">geometry</em></a></td> 646 <td valign="top">percent brightness and saturation of a watermark</td> 647 </tr> 648 649 <tr> 650 <td valign="top"><a href="/www/command-line-options.html#white-point">-white-point <em class="option">point</em></a></td> 651 <td valign="top">chromaticity white point</td> 652 </tr> 653 654 <tr> 655 <td valign="top"><a href="/www/command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td> 656 <td valign="top">force all pixels above the threshold into white</td> 657 </tr> 658 659 <tr> 660 <td valign="top"><a href="/www/command-line-options.html#write">-write <em class="option">filename</em></a></td> 661 <td valign="top">write images to this file</td> 662 </tr> 663 664 </tbody> 665</table> 666 667</div> 668 669<div id="linkbar"> 670 <span id="linkbar-west"> </span> 671 <span id="linkbar-center"> 672 <a href="http://www.imagemagick.org/discourse-server/">Discourse Server</a> • 673 <a href="http://www.imagemagick.org/MagickStudio/scripts/MagickStudio.cgi">Studio</a> 674 </span> 675 <span id="linkbar-east"> </span> 676 </div> 677 <div class="footer"> 678 <span id="footer-west">© 1999-2011 ImageMagick Studio LLC</span> 679 <span id="footer-east"> <a href="http://www.imagemagick.org/script/contact.php">Contact the Wizards</a></span> 680 </div> 681 <div style="clear: both; margin: 0; width: 100%; "></div> 682 <script type="text/javascript"> 683 var _gaq = _gaq || []; 684 _gaq.push(['_setAccount', 'UA-17690367-1']); 685 _gaq.push(['_trackPageview']); 686 687 (function() { 688 var ga = document.createElement('script'); ga.type = 'text/javascript'; 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