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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> 220 221<div style="margin: auto;"> 222 <h2><a id="usage"></a>Example Usage</h2> 223</div> 224 225<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> 226 227<p class='crt'><span class="crtprompt"> $magick> </span><span class='crtin'>composite -gravity center smile.gif rose: rose-over.png</span></p> 228<div class="image"> 229<p> 230 <a href="/images/smile.gif"><img src="/images/smile.gif" width="48" height="48" alt="smile" /></a> 231 <img src="/images/over.gif" width="56" height="46" alt="over" /> 232 <a href="/images/rose.jpg"><img src="/images/rose.jpg" width="70" height="46" alt="rose" /></a> 233 <img style="margin-top:13px; margin-bottom:13px;" src="/images/right.gif" width="20" height="20" alt="==>" /> 234 <a href="/images/rose-over.png"><img src="/images/rose-over.png" width="70" height="46" alt="rose" /></a> 235</p> 236</div> 237 238<p>You can create three-dimensional effect with the <em>Atop</em>:</p> 239 240<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/> 241 -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> 242 243<div class="image"> 244<p> 245 <a href="/images/white-highlight.png"><img src="/images/white-highlight.png" width="70" height="70" alt="white highlight" /></a> 246 <img src="/images/atop.gif" width="56" height="70" alt="atop" /> 247 <a href="/images/red-circle.png"><img src="/images/red-circle.png" width="70" height="70" alt="red circle" /></a> 248 <img style="margin-top:25px; margin-bottom:25px;" src="/images/right.gif" width="20" height="20" alt="==>" /> 249 <a href="/images/red-ball.png"><img src="/images/red-ball.png" width="70" height="70" alt="red ball" /></a> 250</p> 251</div> 252 253<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> 254 255<div style="margin: auto;"> 256 <h2><a id="options"></a>Option Summary</h2> 257</div> 258 259<p>The <kbd>composite</kbd> command recognizes these options. Click on an option to get more details about how that option works.</p> 260 261<table class="doc"> 262 <tbody> 263 <tr> 264 <th align="left">Option</th> 265 <th align="left">Description</th> 266 </tr> 267 268 <tr> 269 <td valign="top"><a href="/www/command-line-options.html#affine">-affine <em class="option">matrix</em></a></td> 270 <td valign="top">affine transform matrix</td> 271 </tr> 272 273 <tr> 274 <td valign="top"><a href="/www/command-line-options.html#alpha">-alpha</a></td> 275 <td valign="top">on, activate, off, deactivate, set, opaque, copy", 276transparent, extract, background, or shape the alpha channel</td> 277 </tr> 278 279 <tr> 280 <td valign="top"><a href="/www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td> 281 <td valign="top">decrypt image with this password</td> 282 </tr> 283 284 <tr> 285 <td valign="top"><a href="/www/command-line-options.html#blend">-blend <em class="option">geometry</em></a></td> 286 <td valign="top">blend images</td> 287 </tr> 288 289 <tr> 290 <td valign="top"><a href="/www/command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td> 291 <td valign="top">chromaticity blue primary point</td> 292 </tr> 293 294 295 <tr> 296 <td valign="top"><a href="/www/command-line-options.html#border">-border <em class="option">geometry</em></a></td> 297 <td valign="top">surround image with a border of color</td> 298 </tr> 299 300 <tr> 301 <td valign="top"><a href="/www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td> 302 <td valign="top">border color</td> 303 </tr> 304 305 <tr> 306 <td valign="top"><a href="/www/command-line-options.html#channel">-channel <em class="option">type</em></a></td> 307 <td valign="top">apply option to select image channels</td> 308 </tr> 309 310 <tr> 311 <td valign="top"><a href="/www/command-line-options.html#colors">-colors <em class="option">value</em></a></td> 312 <td valign="top">preferred number of colors in the image</td> 313 </tr> 314 315 <tr> 316 <td valign="top"><a href="/www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td> 317 <td valign="top">set image colorspace</td> 318 </tr> 319 320 <tr> 321 <td valign="top"><a href="/www/command-line-options.html#comment">-comment <em class="option">string</em></a></td> 322 <td valign="top">annotate image with comment</td> 323 </tr> 324 325 <tr> 326 <td valign="top"><a href="/www/command-line-options.html#compose">-compose <em class="option">operator</em></a></td> 327 <td valign="top">set image composite operator</td> 328 </tr> 329 330 <tr> 331 <td valign="top"><a href="/www/command-line-options.html#compress">-compress <em class="option">type</em></a></td> 332 <td valign="top">image compression type</td> 333 </tr> 334 335 <tr> 336 <td valign="top"><a href="/www/command-line-options.html#debug">-debug <em class="option">events</em></a></td> 337 <td valign="top">display copious debugging information</td> 338 </tr> 339 340 <tr> 341 <td valign="top"><a href="/www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td> 342 <td valign="top">convert cipher pixels to plain</td> 343 </tr> 344 345 <tr> 346 <td valign="top"><a href="/www/command-line-options.html#define">-define <em class="option">format:option</em></a></td> 347 <td valign="top">define one or more image format options</td> 348 </tr> 349 350 <tr> 351 <td valign="top"><a href="/www/command-line-options.html#density">-density <em class="option">geometry</em></a></td> 352 <td valign="top">horizontal and vertical density of the image</td> 353 </tr> 354 355 <tr> 356 <td valign="top"><a href="/www/command-line-options.html#depth">-depth <em class="option">value</em></a></td> 357 <td valign="top">image depth</td> 358 </tr> 359 360 <tr> 361 <td valign="top"><a href="/www/command-line-options.html#displace">-displace <em class="option">geometry</em></a></td> 362 <td valign="top">shift image pixels defined by a displacement map</td> 363 </tr> 364 365 <tr> 366 <td valign="top"><a href="/www/command-line-options.html#dissolve">-dissolve <em class="option">value</em></a></td> 367 <td valign="top">dissolve the two images a given percent</td> 368 </tr> 369 370 <tr> 371 <td valign="top"><a href="/www/command-line-options.html#dither">-dither <em class="option">method</em></a></td> 372 <td valign="top">apply error diffusion to image</td> 373 </tr> 374 375 <tr> 376 <td valign="top"><a href="/www/command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td> 377 <td valign="top">convert plain pixels to cipher pixels</td> 378 </tr> 379 380 <tr> 381 <td valign="top"><a href="/www/command-line-options.html#encoding">-encoding <em class="option">type</em></a></td> 382 <td valign="top">text encoding type</td> 383 </tr> 384 385 <tr> 386 <td valign="top"><a href="/www/command-line-options.html#endian">-endian <em class="option">type</em></a></td> 387 <td valign="top">endianness (MSB or LSB) of the image</td> 388 </tr> 389 390 <tr> 391 <td valign="top"><a href="/www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td> 392 <td valign="top">extract area from image</td> 393 </tr> 394 395 <tr> 396 <td valign="top"><a href="/www/command-line-options.html#filter">-filter <em class="option">type</em></a></td> 397 <td valign="top">use this filter when resizing an image</td> 398 </tr> 399 400 <tr> 401 <td valign="top"><a href="/www/command-line-options.html#font">-font <em class="option">name</em></a></td> 402 <td valign="top">render text with this font</td> 403 </tr> 404 405 <tr> 406 <td valign="top"><a href="/www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td> 407 <td valign="top">preferred size or location of the image</td> 408 </tr> 409 410 <tr> 411 <td valign="top"><a href="/www/command-line-options.html#gravity">-gravity <em class="option">type</em></a></td> 412 <td valign="top">horizontal and vertical text placement</td> 413 </tr> 414 415 <tr> 416 <td valign="top"><a href="/www/command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td> 417 <td valign="top">chromaticity green primary point</td> 418 </tr> 419 420 <tr> 421 <td valign="top"><a href="/www/command-line-options.html#help">-help</a></td> 422 <td valign="top">print program options</td> 423 </tr> 424 425 <tr> 426 <td valign="top"><a href="/www/command-line-options.html#identify">-identify</a></td> 427 <td valign="top">identify the format and characteristics of the image</td> 428 </tr> 429 430 <tr> 431 <td valign="top"><a href="/www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td> 432 <td valign="top">type of image interlacing scheme</td> 433 </tr> 434 435 <tr> 436 <td valign="top"><a href="/www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td> 437 <td valign="top">pixel color interpolation method</td> 438 </tr> 439 440 <tr> 441 <td valign="top"><a href="/www/command-line-options.html#label">-label <em class="option">string</em></a></td> 442 <td valign="top">assign a label to an image</td> 443 </tr> 444 445 <tr> 446 <td valign="top"><a href="/www/command-line-options.html#level">-level <em class="option">value</em></a></td> 447 <td valign="top">adjust the level of image contrast</td> 448 </tr> 449 450 <tr> 451 <td valign="top"><a href="/www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td> 452 <td valign="top">pixel cache resource limit</td> 453 </tr> 454 455 <tr> 456 <td valign="top"><a href="/www/command-line-options.html#log">-log <em class="option">format</em></a></td> 457 <td valign="top">format of debugging information</td> 458 </tr> 459 460 <tr> 461 <td valign="top"><a href="/www/command-line-options.html#monitor">-monitor</a></td> 462 <td valign="top">monitor progress</td> 463 </tr> 464 465 <tr> 466 <td valign="top"><a href="/www/command-line-options.html#monochrome">-monochrome</a></td> 467 <td valign="top">transform image to black and white</td> 468 </tr> 469 470 <tr> 471 <td valign="top"><a href="/www/command-line-options.html#negate">-negate</a></td> 472 <td valign="top">replace each pixel with its complementary color </td> 473 </tr> 474 475 <tr> 476 <td valign="top"><a href="/www/command-line-options.html#page">-page <em class="option">geometry</em></a></td> 477 <td valign="top">size and location of an image canvas (setting)</td> 478 </tr> 479 480 <tr> 481 <td valign="top"><a href="/www/command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td> 482 <td valign="top">font point size</td> 483 </tr> 484 485 <tr> 486 <td valign="top"><a href="/www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td> 487 <td valign="top">add, delete, or apply an image profile</td> 488 </tr> 489 490 <tr> 491 <td valign="top"><a href="/www/command-line-options.html#quality">-quality <em class="option">value</em></a></td> 492 <td valign="top">JPEG/MIFF/PNG compression level</td> 493 </tr> 494 495 <tr> 496 <td valign="top"><a href="/www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td> 497 <td valign="top">reduce image colors in this colorspace</td> 498 </tr> 499 500 <tr> 501 <td valign="top"><a href="/www/command-line-options.html#quiet">-quiet</a></td> 502 <td valign="top">suppress all warning messages</td> 503 </tr> 504 505 <tr> 506 <td valign="top"><a href="/www/command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td> 507 <td valign="top">chromaticity red primary point</td> 508 </tr> 509 510 <tr> 511 <td valign="top"><a href="/www/command-line-options.html#regard-warnings">-regard-warnings</a></td> 512 <td valign="top">pay attention to warning messages.</td> 513 </tr> 514 515 <tr> 516 <td valign="top"><a href="/www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td> 517 <td valign="top">settings remain in effect until parenthesis boundary.</td> 518 </tr> 519 520 <tr> 521 <td valign="top"><a href="/www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td> 522 <td valign="top">apply Paeth rotation to the image</td> 523 </tr> 524 525 <tr> 526 <td valign="top"><a href="/www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td> 527 <td valign="top">horizontal and vertical sampling factor</td> 528 </tr> 529 530 <tr> 531 <td valign="top"><a href="/www/command-line-options.html#scene">-scene <em class="option">value</em></a></td> 532 <td valign="top">image scene number</td> 533 </tr> 534 535 <tr> 536 <td valign="top"><a href="/www/command-line-options.html#seed">-seed <em class="option">value</em></a></td> 537 <td valign="top">seed a new sequence of pseudo-random numbers</td> 538 </tr> 539 540 <tr> 541 <td valign="top"><a href="/www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td> 542 <td valign="top">set an image attribute</td> 543 </tr> 544 545 <tr> 546 <td valign="top"><a href="/www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td> 547 <td valign="top">sharpen the image</td> 548 </tr> 549 550 <tr> 551 <td valign="top"><a href="/www/command-line-options.html#shave">-shave <em class="option">geometry</em></a></td> 552 <td valign="top">shave pixels from the image edges</td> 553 </tr> 554 555 <tr> 556 <td valign="top"><a href="/www/command-line-options.html#size">-size <em class="option">geometry</em></a></td> 557 <td valign="top">width and height of image</td> 558 </tr> 559 560 <tr> 561 <td valign="top"><a href="/www/command-line-options.html#stegano">-stegano <em>offset</em></a></td> 562 <td valign="top">hide watermark within an image</td> 563 </tr> 564 565 <tr> 566 <td valign="top"><a href="/www/command-line-options.html#stereo">-stereo <em class="option">geometry</em></a></td> 567 <td valign="top">combine two image to create a stereo anaglyph</td> 568 </tr> 569 570 <tr> 571 <td valign="top"><a href="/www/command-line-options.html#strip">-strip</a></td> 572 <td valign="top">strip image of all profiles and comments</td> 573 </tr> 574 575 <tr> 576 <td valign="top"><a href="/www/command-line-options.html#swap">-swap <em class="option">indexes</em></a></td> 577 <td valign="top">swap two images in the image sequence</td> 578 </tr> 579 580 <tr> 581 <td valign="top"><a href="/www/command-line-options.html#synchronize">-synchronize</a></td> 582 <td valign="top">synchronize image to storage device</td> 583 </tr> 584 585 <tr> 586 <td valign="top"><a href="/www/command-line-options.html#taint">-taint</a></td> 587 <td valign="top">mark the image as modified</td> 588 </tr> 589 590 <tr> 591 <td valign="top"><a href="/www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td> 592 <td valign="top">create a thumbnail of the image</td> 593 </tr> 594 595 <tr> 596 <td valign="top"><a href="/www/command-line-options.html#tile">-tile</a></td> 597 <td valign="top">repeat composite operation across and down image</td> 598 </tr> 599 600 <tr> 601 <td valign="top"><a href="/www/command-line-options.html#transform">-transform</a></td> 602 <td valign="top">affine transform image</td> 603 </tr> 604 605 <tr> 606 <td valign="top"><a href="/www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td> 607 <td valign="top">transparent color</td> 608 </tr> 609 610 <tr> 611 <td valign="top"><a href="/www/command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td> 612 <td valign="top">color tree depth</td> 613 </tr> 614 615 <tr> 616 <td valign="top"><a href="/www/command-line-options.html#type">-type <em class="option">type</em></a></td> 617 <td valign="top">image type</td> 618 </tr> 619 620 <tr> 621 <td valign="top"><a href="/www/command-line-options.html#units">-units <em class="option">type</em></a></td> 622 <td valign="top">the units of image resolution</td> 623 </tr> 624 625 <tr> 626 <td valign="top"><a href="/www/command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td> 627 <td valign="top">sharpen the image</td> 628 </tr> 629 630 <tr> 631 <td valign="top"><a href="/www/command-line-options.html#verbose">-verbose</a></td> 632 <td valign="top">print detailed information about the image</td> 633 </tr> 634 635 <tr> 636 <td valign="top"><a href="/www/command-line-options.html#version">-version</a></td> 637 <td valign="top">print version information</td> 638 </tr> 639 640 <tr> 641 <td valign="top"><a href="/www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td> 642 <td valign="top">access method for pixels outside the boundaries of the image</td> 643 </tr> 644 645 <tr> 646 <td valign="top"><a href="/www/command-line-options.html#watermark">-watermark <em class="option">geometry</em></a></td> 647 <td valign="top">percent brightness and saturation of a watermark</td> 648 </tr> 649 650 <tr> 651 <td valign="top"><a href="/www/command-line-options.html#white-point">-white-point <em class="option">point</em></a></td> 652 <td valign="top">chromaticity white point</td> 653 </tr> 654 655 <tr> 656 <td valign="top"><a href="/www/command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td> 657 <td valign="top">force all pixels above the threshold into white</td> 658 </tr> 659 660 <tr> 661 <td valign="top"><a href="/www/command-line-options.html#write">-write <em class="option">filename</em></a></td> 662 <td valign="top">write images to this file</td> 663 </tr> 664 665 </tbody> 666</table> 667 668</div> 669 670<div id="linkbar"> 671 <span id="linkbar-west"> </span> 672 <span id="linkbar-center"> 673 <a href="http://www.imagemagick.org/discourse-server/">Discourse Server</a> • 674 <a href="http://www.imagemagick.org/MagickStudio/scripts/MagickStudio.cgi">Studio</a> 675 </span> 676 <span id="linkbar-east"> </span> 677 </div> 678 <div class="footer"> 679 <span id="footer-west">© 1999-2011 ImageMagick Studio LLC</span> 680 <span id="footer-east"> <a href="http://www.imagemagick.org/script/contact.php">Contact the Wizards</a></span> 681 </div> 682 <div style="clear: both; margin: 0; width: 100%; "></div> 683 <script type="text/javascript"> 684 var _gaq = _gaq || []; 685 _gaq.push(['_setAccount', 'UA-17690367-1']); 686 _gaq.push(['_trackPageview']); 687 688 (function() { 689 var ga = document.createElement('script'); ga.type = 'text/javascript'; 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