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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> 213 214<div style="margin: auto;"> 215 <h2><a id="usage"></a>Example Usage</h2> 216</div> 217 218<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> 219 220<p class='crt'><span class="crtprompt"> $magick> </span><span class='crtin'>composite -gravity center smile.gif rose: rose-over.png</span></p> 221<div class="image"> 222<p> 223 <a href="/images/smile.gif"><img src="/images/smile.gif" width="48" height="48" alt="smile" /></a> 224 <img src="/images/over.gif" width="56" height="46" alt="over" /> 225 <a href="/images/rose.jpg"><img src="/images/rose.jpg" width="70" height="46" alt="rose" /></a> 226 <img style="margin-top:13px; margin-bottom:13px;" src="/images/right.gif" width="20" height="20" alt="==>" /> 227 <a href="/images/rose-over.png"><img src="/images/rose-over.png" width="70" height="46" alt="rose" /></a> 228</p> 229</div> 230 231<p>You can create three-dimensional effect with the <em>Atop</em>:</p> 232 233<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/> 234 -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> 235 236<div class="image"> 237<p> 238 <a href="/images/white-highlight.png"><img src="/images/white-highlight.png" width="70" height="70" alt="white highlight" /></a> 239 <img src="/images/atop.gif" width="56" height="70" alt="atop" /> 240 <a href="/images/red-circle.png"><img src="/images/red-circle.png" width="70" height="70" alt="red circle" /></a> 241 <img style="margin-top:25px; margin-bottom:25px;" src="/images/right.gif" width="20" height="20" alt="==>" /> 242 <a href="/images/red-ball.png"><img src="/images/red-ball.png" width="70" height="70" alt="red ball" /></a> 243</p> 244</div> 245 246<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> 247 248<div style="margin: auto;"> 249 <h2><a id="options"></a>Option Summary</h2> 250</div> 251 252<p>The <kbd>composite</kbd> command recognizes these options. Click on an option to get more details about how that option works.</p> 253 254<table class="doc"> 255 <tbody> 256 <tr> 257 <th align="left">Option</th> 258 <th align="left">Description</th> 259 </tr> 260 261 <tr> 262 <td valign="top"><a href="/www/command-line-options.html#affine">-affine <em class="option">matrix</em></a></td> 263 <td valign="top">affine transform matrix</td> 264 </tr> 265 266 <tr> 267 <td valign="top"><a href="/www/command-line-options.html#alpha">-alpha</a></td> 268 <td valign="top">on, activate, off, deactivate, set, opaque, copy", 269transparent, extract, background, or shape the alpha channel</td> 270 </tr> 271 272 <tr> 273 <td valign="top"><a href="/www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td> 274 <td valign="top">decrypt image with this password</td> 275 </tr> 276 277 <tr> 278 <td valign="top"><a href="/www/command-line-options.html#blend">-blend <em class="option">geometry</em></a></td> 279 <td valign="top">blend images</td> 280 </tr> 281 282 <tr> 283 <td valign="top"><a href="/www/command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td> 284 <td valign="top">chromaticity blue primary point</td> 285 </tr> 286 287 288 <tr> 289 <td valign="top"><a href="/www/command-line-options.html#border">-border <em class="option">geometry</em></a></td> 290 <td valign="top">surround image with a border of color</td> 291 </tr> 292 293 <tr> 294 <td valign="top"><a href="/www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td> 295 <td valign="top">border color</td> 296 </tr> 297 298 <tr> 299 <td valign="top"><a href="/www/command-line-options.html#channel">-channel <em class="option">type</em></a></td> 300 <td valign="top">apply option to select image channels</td> 301 </tr> 302 303 <tr> 304 <td valign="top"><a href="/www/command-line-options.html#colors">-colors <em class="option">value</em></a></td> 305 <td valign="top">preferred number of colors in the image</td> 306 </tr> 307 308 <tr> 309 <td valign="top"><a href="/www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td> 310 <td valign="top">set image colorspace</td> 311 </tr> 312 313 <tr> 314 <td valign="top"><a href="/www/command-line-options.html#comment">-comment <em class="option">string</em></a></td> 315 <td valign="top">annotate image with comment</td> 316 </tr> 317 318 <tr> 319 <td valign="top"><a href="/www/command-line-options.html#compose">-compose <em class="option">operator</em></a></td> 320 <td valign="top">set image composite operator</td> 321 </tr> 322 323 <tr> 324 <td valign="top"><a href="/www/command-line-options.html#compress">-compress <em class="option">type</em></a></td> 325 <td valign="top">image compression type</td> 326 </tr> 327 328 <tr> 329 <td valign="top"><a href="/www/command-line-options.html#debug">-debug <em class="option">events</em></a></td> 330 <td valign="top">display copious debugging information</td> 331 </tr> 332 333 <tr> 334 <td valign="top"><a href="/www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td> 335 <td valign="top">convert cipher pixels to plain</td> 336 </tr> 337 338 <tr> 339 <td valign="top"><a href="/www/command-line-options.html#define">-define <em class="option">format:option</em></a></td> 340 <td valign="top">define one or more image format options</td> 341 </tr> 342 343 <tr> 344 <td valign="top"><a href="/www/command-line-options.html#density">-density <em class="option">geometry</em></a></td> 345 <td valign="top">horizontal and vertical density of the image</td> 346 </tr> 347 348 <tr> 349 <td valign="top"><a href="/www/command-line-options.html#depth">-depth <em class="option">value</em></a></td> 350 <td valign="top">image depth</td> 351 </tr> 352 353 <tr> 354 <td valign="top"><a href="/www/command-line-options.html#displace">-displace <em class="option">geometry</em></a></td> 355 <td valign="top">shift image pixels defined by a displacement map</td> 356 </tr> 357 358 <tr> 359 <td valign="top"><a href="/www/command-line-options.html#dissolve">-dissolve <em class="option">value</em></a></td> 360 <td valign="top">dissolve the two images a given percent</td> 361 </tr> 362 363 <tr> 364 <td valign="top"><a href="/www/command-line-options.html#dither">-dither <em class="option">method</em></a></td> 365 <td valign="top">apply error diffusion to image</td> 366 </tr> 367 368 <tr> 369 <td valign="top"><a href="/www/command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td> 370 <td valign="top">convert plain pixels to cipher pixels</td> 371 </tr> 372 373 <tr> 374 <td valign="top"><a href="/www/command-line-options.html#encoding">-encoding <em class="option">type</em></a></td> 375 <td valign="top">text encoding type</td> 376 </tr> 377 378 <tr> 379 <td valign="top"><a href="/www/command-line-options.html#endian">-endian <em class="option">type</em></a></td> 380 <td valign="top">endianness (MSB or LSB) of the image</td> 381 </tr> 382 383 <tr> 384 <td valign="top"><a href="/www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td> 385 <td valign="top">extract area from image</td> 386 </tr> 387 388 <tr> 389 <td valign="top"><a href="/www/command-line-options.html#filter">-filter <em class="option">type</em></a></td> 390 <td valign="top">use this filter when resizing an image</td> 391 </tr> 392 393 <tr> 394 <td valign="top"><a href="/www/command-line-options.html#font">-font <em class="option">name</em></a></td> 395 <td valign="top">render text with this font</td> 396 </tr> 397 398 <tr> 399 <td valign="top"><a href="/www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td> 400 <td valign="top">preferred size or location of the image</td> 401 </tr> 402 403 <tr> 404 <td valign="top"><a href="/www/command-line-options.html#gravity">-gravity <em class="option">type</em></a></td> 405 <td valign="top">horizontal and vertical text placement</td> 406 </tr> 407 408 <tr> 409 <td valign="top"><a href="/www/command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td> 410 <td valign="top">chromaticity green primary point</td> 411 </tr> 412 413 <tr> 414 <td valign="top"><a href="/www/command-line-options.html#help">-help</a></td> 415 <td valign="top">print program options</td> 416 </tr> 417 418 <tr> 419 <td valign="top"><a href="/www/command-line-options.html#identify">-identify</a></td> 420 <td valign="top">identify the format and characteristics of the image</td> 421 </tr> 422 423 <tr> 424 <td valign="top"><a href="/www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td> 425 <td valign="top">type of image interlacing scheme</td> 426 </tr> 427 428 <tr> 429 <td valign="top"><a href="/www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td> 430 <td valign="top">pixel color interpolation method</td> 431 </tr> 432 433 <tr> 434 <td valign="top"><a href="/www/command-line-options.html#label">-label <em class="option">string</em></a></td> 435 <td valign="top">assign a label to an image</td> 436 </tr> 437 438 <tr> 439 <td valign="top"><a href="/www/command-line-options.html#level">-level <em class="option">value</em></a></td> 440 <td valign="top">adjust the level of image contrast</td> 441 </tr> 442 443 <tr> 444 <td valign="top"><a href="/www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td> 445 <td valign="top">pixel cache resource limit</td> 446 </tr> 447 448 <tr> 449 <td valign="top"><a href="/www/command-line-options.html#log">-log <em class="option">format</em></a></td> 450 <td valign="top">format of debugging information</td> 451 </tr> 452 453 <tr> 454 <td valign="top"><a href="/www/command-line-options.html#monitor">-monitor</a></td> 455 <td valign="top">monitor progress</td> 456 </tr> 457 458 <tr> 459 <td valign="top"><a href="/www/command-line-options.html#monochrome">-monochrome</a></td> 460 <td valign="top">transform image to black and white</td> 461 </tr> 462 463 <tr> 464 <td valign="top"><a href="/www/command-line-options.html#negate">-negate</a></td> 465 <td valign="top">replace each pixel with its complementary color </td> 466 </tr> 467 468 <tr> 469 <td valign="top"><a href="/www/command-line-options.html#page">-page <em class="option">geometry</em></a></td> 470 <td valign="top">size and location of an image canvas (setting)</td> 471 </tr> 472 473 <tr> 474 <td valign="top"><a href="/www/command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td> 475 <td valign="top">font point size</td> 476 </tr> 477 478 <tr> 479 <td valign="top"><a href="/www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td> 480 <td valign="top">add, delete, or apply an image profile</td> 481 </tr> 482 483 <tr> 484 <td valign="top"><a href="/www/command-line-options.html#quality">-quality <em class="option">value</em></a></td> 485 <td valign="top">JPEG/MIFF/PNG compression level</td> 486 </tr> 487 488 <tr> 489 <td valign="top"><a href="/www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td> 490 <td valign="top">reduce image colors in this colorspace</td> 491 </tr> 492 493 <tr> 494 <td valign="top"><a href="/www/command-line-options.html#quiet">-quiet</a></td> 495 <td valign="top">suppress all warning messages</td> 496 </tr> 497 498 <tr> 499 <td valign="top"><a href="/www/command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td> 500 <td valign="top">chromaticity red primary point</td> 501 </tr> 502 503 <tr> 504 <td valign="top"><a href="/www/command-line-options.html#regard-warnings">-regard-warnings</a></td> 505 <td valign="top">pay attention to warning messages.</td> 506 </tr> 507 508 <tr> 509 <td valign="top"><a href="/www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td> 510 <td valign="top">settings remain in effect until parenthesis boundary.</td> 511 </tr> 512 513 <tr> 514 <td valign="top"><a href="/www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td> 515 <td valign="top">apply Paeth rotation to the image</td> 516 </tr> 517 518 <tr> 519 <td valign="top"><a href="/www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td> 520 <td valign="top">horizontal and vertical sampling factor</td> 521 </tr> 522 523 <tr> 524 <td valign="top"><a href="/www/command-line-options.html#scene">-scene <em class="option">value</em></a></td> 525 <td valign="top">image scene number</td> 526 </tr> 527 528 <tr> 529 <td valign="top"><a href="/www/command-line-options.html#seed">-seed <em class="option">value</em></a></td> 530 <td valign="top">seed a new sequence of pseudo-random numbers</td> 531 </tr> 532 533 <tr> 534 <td valign="top"><a href="/www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td> 535 <td valign="top">set an image attribute</td> 536 </tr> 537 538 <tr> 539 <td valign="top"><a href="/www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td> 540 <td valign="top">sharpen the image</td> 541 </tr> 542 543 <tr> 544 <td valign="top"><a href="/www/command-line-options.html#shave">-shave <em class="option">geometry</em></a></td> 545 <td valign="top">shave pixels from the image edges</td> 546 </tr> 547 548 <tr> 549 <td valign="top"><a href="/www/command-line-options.html#size">-size <em class="option">geometry</em></a></td> 550 <td valign="top">width and height of image</td> 551 </tr> 552 553 <tr> 554 <td valign="top"><a href="/www/command-line-options.html#stegano">-stegano <em>offset</em></a></td> 555 <td valign="top">hide watermark within an image</td> 556 </tr> 557 558 <tr> 559 <td valign="top"><a href="/www/command-line-options.html#stereo">-stereo <em class="option">geometry</em></a></td> 560 <td valign="top">combine two image to create a stereo anaglyph</td> 561 </tr> 562 563 <tr> 564 <td valign="top"><a href="/www/command-line-options.html#strip">-strip</a></td> 565 <td valign="top">strip image of all profiles and comments</td> 566 </tr> 567 568 <tr> 569 <td valign="top"><a href="/www/command-line-options.html#swap">-swap <em class="option">indexes</em></a></td> 570 <td valign="top">swap two images in the image sequence</td> 571 </tr> 572 573 <tr> 574 <td valign="top"><a href="/www/command-line-options.html#synchronize">-synchronize</a></td> 575 <td valign="top">synchronize image to storage device</td> 576 </tr> 577 578 <tr> 579 <td valign="top"><a href="/www/command-line-options.html#taint">-taint</a></td> 580 <td valign="top">mark the image as modified</td> 581 </tr> 582 583 <tr> 584 <td valign="top"><a href="/www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td> 585 <td valign="top">create a thumbnail of the image</td> 586 </tr> 587 588 <tr> 589 <td valign="top"><a href="/www/command-line-options.html#tile">-tile</a></td> 590 <td valign="top">repeat composite operation across and down image</td> 591 </tr> 592 593 <tr> 594 <td valign="top"><a href="/www/command-line-options.html#transform">-transform</a></td> 595 <td valign="top">affine transform image</td> 596 </tr> 597 598 <tr> 599 <td valign="top"><a href="/www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td> 600 <td valign="top">transparent color</td> 601 </tr> 602 603 <tr> 604 <td valign="top"><a href="/www/command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td> 605 <td valign="top">color tree depth</td> 606 </tr> 607 608 <tr> 609 <td valign="top"><a href="/www/command-line-options.html#type">-type <em class="option">type</em></a></td> 610 <td valign="top">image type</td> 611 </tr> 612 613 <tr> 614 <td valign="top"><a href="/www/command-line-options.html#units">-units <em class="option">type</em></a></td> 615 <td valign="top">the units of image resolution</td> 616 </tr> 617 618 <tr> 619 <td valign="top"><a href="/www/command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td> 620 <td valign="top">sharpen the image</td> 621 </tr> 622 623 <tr> 624 <td valign="top"><a href="/www/command-line-options.html#verbose">-verbose</a></td> 625 <td valign="top">print detailed information about the image</td> 626 </tr> 627 628 <tr> 629 <td valign="top"><a href="/www/command-line-options.html#version">-version</a></td> 630 <td valign="top">print version information</td> 631 </tr> 632 633 <tr> 634 <td valign="top"><a href="/www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td> 635 <td valign="top">access method for pixels outside the boundaries of the image</td> 636 </tr> 637 638 <tr> 639 <td valign="top"><a href="/www/command-line-options.html#watermark">-watermark <em class="option">geometry</em></a></td> 640 <td valign="top">percent brightness and saturation of a watermark</td> 641 </tr> 642 643 <tr> 644 <td valign="top"><a href="/www/command-line-options.html#white-point">-white-point <em class="option">point</em></a></td> 645 <td valign="top">chromaticity white point</td> 646 </tr> 647 648 <tr> 649 <td valign="top"><a href="/www/command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td> 650 <td valign="top">force all pixels above the threshold into white</td> 651 </tr> 652 653 <tr> 654 <td valign="top"><a href="/www/command-line-options.html#write">-write <em class="option">filename</em></a></td> 655 <td valign="top">write images to this file</td> 656 </tr> 657 658 </tbody> 659</table> 660 661</div> 662 663<div id="linkbar"> 664 <span id="linkbar-west"> </span> 665 <span id="linkbar-center"> 666 <a href="http://www.imagemagick.org/discourse-server/">Discourse Server</a> • 667 <a href="http://www.imagemagick.org/MagickStudio/scripts/MagickStudio.cgi">Studio</a> 668 </span> 669 <span id="linkbar-east"> </span> 670 </div> 671 <div class="footer"> 672 <span id="footer-west">© 1999-2011 ImageMagick Studio LLC</span> 673 <span id="footer-east"> <a href="http://www.imagemagick.org/script/contact.php">Contact the Wizards</a></span> 674 </div> 675 <div style="clear: both; margin: 0; width: 100%; "></div> 676 <script type="text/javascript"> 677 var _gaq = _gaq || []; 678 _gaq.push(['_setAccount', 'UA-17690367-1']); 679 _gaq.push(['_trackPageview']); 680 681 (function() { 682 var ga = document.createElement('script'); ga.type = 'text/javascript'; 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