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165
166<p class="navigation-index">[<a href="#usage">Example Usage</a> &bull; <a href="#options">Option Summary</a>]</p>
167
168<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>
169
170<div style="margin: auto;">
171  <h2><a name="usage"></a>Example Usage</h2>
172</div>
173
174<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>
175
176<p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>composite -gravity center smile.gif  rose: rose-over.png</span></p>
177<div class="image">
178<p>
179  <a href="/images/smile.gif"><img src="/images/smile.gif" width="48" height="48" alt="smile" /></a>
180  <img src="/images/over.gif" width="56" height="46" alt="over" />
181  <a href="/images/rose.jpg"><img src="/images/rose.jpg" width="70" height="46" alt="rose" /></a>
182  <img style="margin-top:13px; margin-bottom:13px;" src="/images/right.gif" width="20" height="20" alt="==>" />
183  <a href="/images/rose-over.png"><img src="/images/rose-over.png" width="70" height="46" alt="rose" /></a>
184</p>
185</div>
186
187<p>You can create three-dimensional effect with the <em>Atop</em>:</p>
188
189<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/>
190  -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>
191
192<div class="image">
193<p>
194  <a href="/images/white-highlight.png"><img src="/images/white-highlight.png" width="70" height="70" alt="white highlight" /></a>
195  <img src="/images/atop.gif" width="56" height="70" alt="atop" />
196  <a href="/images/red-circle.png"><img src="/images/red-circle.png" width="70" height="70" alt="red circle" /></a>
197  <img style="margin-top:25px; margin-bottom:25px;" src="/images/right.gif" width="20" height="20" alt="==>" />
198  <a href="/images/red-ball.png"><img src="/images/red-ball.png" width="70" height="70" alt="red ball" /></a>
199</p>
200</div>
201
202<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>
203
204<div style="margin: auto;">
205  <h2><a name="options"></a>Option Summary</h2>
206</div>
207
208<p>The <kbd>composite</kbd> command recognizes these options.  Click on an option to get more details about how that option works.</p>
209
210<table class="doc">
211  <tbody>
212  <tr>
213    <th align="left">Option</th>
214    <th align="left">Description</th>
215  </tr>
216
217  <tr>
218    <td valign="top"><a href="/www/command-line-options.html#affine">-affine <em class="option">matrix</em></a></td>
219    <td valign="top">affine transform matrix</td>
220  </tr>
221
222  <tr>
223    <td valign="top"><a href="/www/command-line-options.html#alpha">-alpha</a></td>
224    <td valign="top">on, activate, off, deactivate, set, opaque, copy",
225transparent, extract, background, or shape the alpha channel</td>
226  </tr>
227
228  <tr>
229    <td valign="top"><a href="/www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
230    <td valign="top">decrypt image with this password</td>
231  </tr>
232
233  <tr>
234    <td valign="top"><a href="/www/command-line-options.html#blend">-blend <em class="option">geometry</em></a></td>
235    <td valign="top">blend images</td>
236  </tr>
237
238  <tr>
239    <td valign="top"><a href="/www/command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td>
240    <td valign="top">chromaticity blue primary point</td>
241  </tr>
242
243
244  <tr>
245    <td valign="top"><a href="/www/command-line-options.html#border">-border <em class="option">geometry</em></a></td>
246    <td valign="top">surround image with a border of color</td>
247  </tr>
248
249  <tr>
250    <td valign="top"><a href="/www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
251    <td valign="top">border color</td>
252  </tr>
253
254  <tr>
255    <td valign="top"><a href="/www/command-line-options.html#channel">-channel <em class="option">type</em></a></td>
256    <td valign="top">apply option to select image channels</td>
257  </tr>
258
259  <tr>
260    <td valign="top"><a href="/www/command-line-options.html#colors">-colors <em class="option">value</em></a></td>
261    <td valign="top">preferred number of colors in the image</td>
262  </tr>
263
264  <tr>
265    <td valign="top"><a href="/www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
266    <td valign="top">set image colorspace</td>
267  </tr>
268
269  <tr>
270    <td valign="top"><a href="/www/command-line-options.html#comment">-comment <em class="option">string</em></a></td>
271    <td valign="top">annotate image with comment</td>
272  </tr>
273
274  <tr>
275    <td valign="top"><a href="/www/command-line-options.html#compose">-compose <em class="option">operator</em></a></td>
276    <td valign="top">set image composite operator</td>
277  </tr>
278
279  <tr>
280    <td valign="top"><a href="/www/command-line-options.html#compress">-compress <em class="option">type</em></a></td>
281    <td valign="top">image compression type</td>
282  </tr>
283
284  <tr>
285    <td valign="top"><a href="/www/command-line-options.html#debug">-debug <em class="option">events</em></a></td>
286    <td valign="top">display copious debugging information</td>
287  </tr>
288
289  <tr>
290    <td valign="top"><a href="/www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
291    <td valign="top">convert cipher pixels to plain</td>
292  </tr>
293
294  <tr>
295    <td valign="top"><a href="/www/command-line-options.html#define">-define <em class="option">format:option</em></a></td>
296    <td valign="top">define one or more image format options</td>
297  </tr>
298
299  <tr>
300    <td valign="top"><a href="/www/command-line-options.html#density">-density <em class="option">geometry</em></a></td>
301    <td valign="top">horizontal and vertical density of the image</td>
302  </tr>
303
304  <tr>
305    <td valign="top"><a href="/www/command-line-options.html#depth">-depth <em class="option">value</em></a></td>
306    <td valign="top">image depth</td>
307  </tr>
308
309  <tr>
310    <td valign="top"><a href="/www/command-line-options.html#displace">-displace <em class="option">geometry</em></a></td>
311    <td valign="top">shift image pixels defined by a displacement map</td>
312  </tr>
313
314  <tr>
315    <td valign="top"><a href="/www/command-line-options.html#dissolve">-dissolve <em class="option">value</em></a></td>
316    <td valign="top">dissolve the two images a given percent</td>
317  </tr>
318
319  <tr>
320    <td valign="top"><a href="/www/command-line-options.html#dither">-dither  <em class="option">method</em></a></td>
321    <td valign="top">apply error diffusion to image</td>
322  </tr>
323
324  <tr>
325    <td valign="top"><a href="/www/command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td>
326    <td valign="top">convert plain pixels to cipher pixels</td>
327  </tr>
328
329  <tr>
330    <td valign="top"><a href="/www/command-line-options.html#encoding">-encoding <em class="option">type</em></a></td>
331    <td valign="top">text encoding type</td>
332  </tr>
333
334  <tr>
335    <td valign="top"><a href="/www/command-line-options.html#endian">-endian <em class="option">type</em></a></td>
336    <td valign="top">endianness (MSB or LSB) of the image</td>
337  </tr>
338
339  <tr>
340    <td valign="top"><a href="/www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
341    <td valign="top">extract area from image</td>
342  </tr>
343
344  <tr>
345    <td valign="top"><a href="/www/command-line-options.html#filter">-filter <em class="option">type</em></a></td>
346    <td valign="top">use this filter when resizing an image</td>
347  </tr>
348
349  <tr>
350    <td valign="top"><a href="/www/command-line-options.html#font">-font <em class="option">name</em></a></td>
351    <td valign="top">render text with this font</td>
352  </tr>
353
354  <tr>
355    <td valign="top"><a href="/www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
356    <td valign="top">preferred size or location of the image</td>
357  </tr>
358
359  <tr>
360    <td valign="top"><a href="/www/command-line-options.html#gravity">-gravity <em class="option">type</em></a></td>
361    <td valign="top">horizontal and vertical text placement</td>
362  </tr>
363
364  <tr>
365    <td valign="top"><a href="/www/command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td>
366    <td valign="top">chromaticity green primary point</td>
367  </tr>
368
369  <tr>
370    <td valign="top"><a href="/www/command-line-options.html#help">-help</a></td>
371    <td valign="top">print program options</td>
372  </tr>
373
374  <tr>
375    <td valign="top"><a href="/www/command-line-options.html#identify">-identify</a></td>
376    <td valign="top">identify the format and characteristics of the image</td>
377  </tr>
378
379  <tr>
380    <td valign="top"><a href="/www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
381    <td valign="top">type of image interlacing scheme</td>
382  </tr>
383
384  <tr>
385    <td valign="top"><a href="/www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
386    <td valign="top">pixel color interpolation method</td>
387  </tr>
388
389  <tr>
390    <td valign="top"><a href="/www/command-line-options.html#label">-label <em class="option">string</em></a></td>
391    <td valign="top">assign a label to an image</td>
392  </tr>
393
394  <tr>
395    <td valign="top"><a href="/www/command-line-options.html#level">-level <em class="option">value</em></a></td>
396    <td valign="top">adjust the level of image contrast</td>
397  </tr>
398
399  <tr>
400    <td valign="top"><a href="/www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
401    <td valign="top">pixel cache resource limit</td>
402  </tr>
403
404  <tr>
405    <td valign="top"><a href="/www/command-line-options.html#log">-log <em class="option">format</em></a></td>
406    <td valign="top">format of debugging information</td>
407  </tr>
408
409  <tr>
410    <td valign="top"><a href="/www/command-line-options.html#monitor">-monitor</a></td>
411    <td valign="top">monitor progress</td>
412  </tr>
413
414  <tr>
415    <td valign="top"><a href="/www/command-line-options.html#monochrome">-monochrome</a></td>
416    <td valign="top">transform image to black and white</td>
417  </tr>
418
419  <tr>
420    <td valign="top"><a href="/www/command-line-options.html#negate">-negate</a></td>
421    <td valign="top">replace each pixel with its complementary color </td>
422  </tr>
423
424  <tr>
425    <td valign="top"><a href="/www/command-line-options.html#page">-page <em class="option">geometry</em></a></td>
426    <td valign="top">size and location of an image canvas (setting)</td>
427  </tr>
428
429  <tr>
430    <td valign="top"><a href="/www/command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td>
431    <td valign="top">font point size</td>
432  </tr>
433
434  <tr>
435    <td valign="top"><a href="/www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
436    <td valign="top">add, delete, or apply an image profile</td>
437  </tr>
438
439  <tr>
440    <td valign="top"><a href="/www/command-line-options.html#quality">-quality <em class="option">value</em></a></td>
441    <td valign="top">JPEG/MIFF/PNG compression level</td>
442  </tr>
443
444  <tr>
445    <td valign="top"><a href="/www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
446    <td valign="top">reduce image colors in this colorspace</td>
447  </tr>
448
449  <tr>
450    <td valign="top"><a href="/www/command-line-options.html#quiet">-quiet</a></td>
451    <td valign="top">suppress all warning messages</td>
452  </tr>
453
454  <tr>
455    <td valign="top"><a href="/www/command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td>
456    <td valign="top">chromaticity red primary point</td>
457  </tr>
458
459  <tr>
460    <td valign="top"><a href="/www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
461    <td valign="top">pay attention to warning messages.</td>
462  </tr>
463
464  <tr>
465    <td valign="top"><a href="/www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
466    <td valign="top">settings remain in effect until parenthesis boundary.</td>
467  </tr>
468
469  <tr>
470    <td valign="top"><a href="/www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
471    <td valign="top">apply Paeth rotation to the image</td>
472  </tr>
473
474  <tr>
475    <td valign="top"><a href="/www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
476    <td valign="top">horizontal and vertical sampling factor</td>
477  </tr>
478
479  <tr>
480    <td valign="top"><a href="/www/command-line-options.html#scene">-scene <em class="option">value</em></a></td>
481    <td valign="top">image scene number</td>
482  </tr>
483
484  <tr>
485    <td valign="top"><a href="/www/command-line-options.html#seed">-seed <em class="option">value</em></a></td>
486    <td valign="top">seed a new sequence of pseudo-random numbers</td>
487  </tr>
488
489  <tr>
490    <td valign="top"><a href="/www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
491    <td valign="top">set an image attribute</td>
492  </tr>
493
494  <tr>
495    <td valign="top"><a href="/www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
496    <td valign="top">sharpen the image</td>
497  </tr>
498
499  <tr>
500    <td valign="top"><a href="/www/command-line-options.html#shave">-shave <em class="option">geometry</em></a></td>
501    <td valign="top">shave pixels from the image edges</td>
502  </tr>
503
504  <tr>
505    <td valign="top"><a href="/www/command-line-options.html#size">-size <em class="option">geometry</em></a></td>
506    <td valign="top">width and height of image</td>
507  </tr>
508
509  <tr>
510    <td valign="top"><a href="/www/command-line-options.html#stegano">-stegano <em>offset</em></a></td>
511    <td valign="top">hide watermark within an image</td>
512  </tr>
513
514  <tr>
515    <td valign="top"><a href="/www/command-line-options.html#stereo">-stereo <em class="option">geometry</em></a></td>
516    <td valign="top">combine two image to create a stereo anaglyph</td>
517  </tr>
518
519  <tr>
520    <td valign="top"><a href="/www/command-line-options.html#strip">-strip</a></td>
521    <td valign="top">strip image of all profiles and comments</td>
522  </tr>
523
524  <tr>
525    <td valign="top"><a href="/www/command-line-options.html#swap">-swap <em class="option">indexes</em></a></td>
526    <td valign="top">swap two images in the image sequence</td>
527  </tr>
528
529  <tr>
530    <td valign="top"><a href="/www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td>
531    <td valign="top">create a thumbnail of the image</td>
532  </tr>
533
534  <tr>
535    <td valign="top"><a href="/www/command-line-options.html#tile">-tile</a></td>
536    <td valign="top">repeat composite operation across and down image</td>
537  </tr>
538
539  <tr>
540    <td valign="top"><a href="/www/command-line-options.html#transform">-transform</a></td>
541    <td valign="top">affine transform image</td>
542  </tr>
543
544  <tr>
545    <td valign="top"><a href="/www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
546    <td valign="top">transparent color</td>
547  </tr>
548
549  <tr>
550    <td valign="top"><a href="/www/command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td>
551    <td valign="top">color tree depth</td>
552  </tr>
553
554  <tr>
555    <td valign="top"><a href="/www/command-line-options.html#type">-type <em class="option">type</em></a></td>
556    <td valign="top">image type</td>
557  </tr>
558
559  <tr>
560    <td valign="top"><a href="/www/command-line-options.html#units">-units <em class="option">type</em></a></td>
561    <td valign="top">the units of image resolution</td>
562  </tr>
563
564  <tr>
565    <td valign="top"><a href="/www/command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td>
566    <td valign="top">sharpen the image</td>
567  </tr>
568
569  <tr>
570    <td valign="top"><a href="/www/command-line-options.html#verbose">-verbose</a></td>
571    <td valign="top">print detailed information about the image</td>
572  </tr>
573
574  <tr>
575    <td valign="top"><a href="/www/command-line-options.html#version">-version</a></td>
576    <td valign="top">print version information</td>
577  </tr>
578
579  <tr>
580    <td valign="top"><a href="/www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
581    <td valign="top">access method for pixels outside the boundaries of the image</td>
582  </tr>
583
584  <tr>
585    <td valign="top"><a href="/www/command-line-options.html#watermark">-watermark <em class="option">geometry</em></a></td>
586    <td valign="top">percent brightness and saturation of a watermark</td>
587  </tr>
588
589  <tr>
590    <td valign="top"><a href="/www/command-line-options.html#white-point">-white-point <em class="option">point</em></a></td>
591    <td valign="top">chromaticity white point</td>
592  </tr>
593
594  <tr>
595    <td valign="top"><a href="/www/command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td>
596    <td valign="top">force all pixels above the threshold into white</td>
597  </tr>
598
599  <tr>
600    <td valign="top"><a href="/www/command-line-options.html#write">-write <em class="option">filename</em></a></td>
601    <td valign="top">write images to this file</td>
602  </tr>
603
604  </tbody>
605</table>
606
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