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154
155</div>
156
157<div class="main">
158
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]159<p class="navigation-index">[<a href="#usage">Example Usage</a> &bull; <a href="#options">Option Summary</a>]</p>
160
161<div class="doc-section">
162<p>Use the <kbd>convert</kbd> program to convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more. See <a href="../www/command-line-processing.html">Command Line Processing</a> for advice on how to structure your <kbd>convert</kbd> command or see below for example usages of the command.</p>
163</div>
164
165<h2><a name="usage"></a>Example Usage</h2>
166<div class="doc-section">
167
168<p>We list a few examples of the <kbd>convert</kbd> command here to illustrate its usefulness and ease of use. To get started, lets convert an image in the JPEG format to PNG:</p>
169
170<p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>convert rose.jpg rose.png</span></p>
171<p>Next, we reduce the image size before it is written to the PNG format:</p>
172
173<p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>convert rose.jpg -resize 50% rose.png</span></p>
174<p class="image">
175 <a href="../images/rose.jpg">
176 <img src="../images/rose.jpg" width="70" height="46" alt="rose" />
177 </a>
178 <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" />
179 <a href="../images/rose.png">
180 <img style="margin-top:11px; margin-bottom:12px;" src="../images/rose.png" width="35" height="23" alt="rose" />
181 </a>
182</p>
183
184<p>You can combine multiple image-processing operations to produce complex results:</p>
185
186<p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>convert -size 320x85 xc:transparent -font Bookman-DemiItalic -pointsize 72 \ <br/>
cristyc92bdb42009-12-18 21:29:02 +0000[diff] [blame]187-draw "text 25,60 'Magick'" -channel RGBA -blur 0x6 -fill darkred -stroke magenta \ <br/>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]188-draw "text 20,55 'Magick'" fuzzy-magick.png</span></p>
189<p class="image">
190 <a href="../images/fuzzy-magick.png"><img src="../images/fuzzy-magick.png" width="320" height="85" alt="fuzzy-magick" /></a>
191</p>
192
193<p>You can find additional examples of using <kbd>convert</kbd> in <a href="http://www.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>.</p>
194
195</div>
196
197<h2><a name="options"></a>Option Summary</h2>
198<div class="doc-section">
199
200<p>The <kbd>convert</kbd> command recognizes these options. Click on an option to get more details about how that option works.</p>
201
202<table class="doc">
203 <tbody>
204 <tr>
205 <th align="left">Option</th>
206 <th align="left">Description</th>
207 </tr>
208
209 <tr>
210 <td valign="top"><a href="../www/command-line-options.html#adaptive-blur">-adaptive-blur <em class="option">geometry</em></a></td>
211 <td valign="top">adaptively blur pixels; decrease effect near edges</td>
212 </tr>
213
214 <tr>
215 <td valign="top"><a href="../www/command-line-options.html#adaptive-resize">-adaptive-resize <em class="option">geometry</em></a></td>
216 <td valign="top">adaptively resize image with data dependent triangulation.</td>
217 </tr>
218
219 <tr>
220 <td valign="top"><a href="../www/command-line-options.html#adaptive-sharpen">-adaptive-sharpen <em class="option">geometry</em></a></td>
221 <td valign="top">adaptively sharpen pixels; increase effect near edges</td>
222 </tr>
223
224 <tr>
225 <td valign="top"><a href="../www/command-line-options.html#adjoin">-adjoin</a></td>
226 <td valign="top">join images into a single multi-image file</td>
227 </tr>
228
229 <tr>
230 <td valign="top"><a href="../www/command-line-options.html#affine">-affine <em class="option">matrix</em></a></td>
231 <td valign="top">affine transform matrix</td>
232 </tr>
233
234 <tr>
235 <td valign="top"><a href="../www/command-line-options.html#alpha">-alpha</a></td>
236 <td valign="top">on, activate, off, deactivate, set, opaque, copy",
237transparent, extract, background, or shape the alpha channel</td>
238 </tr>
239
240 <tr>
241 <td valign="top"><a href="../www/command-line-options.html#annotate">-annotate <em class="option">geometry text</em></a></td>
242 <td valign="top">annotate the image with text</td>
243 </tr>
244
245 <tr>
246 <td valign="top"><a href="../www/command-line-options.html#antialias">-antialias</a></td>
247 <td valign="top">remove pixel-aliasing</td>
248 </tr>
249
250 <tr>
251 <td valign="top"><a href="../www/command-line-options.html#append">-append</a></td>
252 <td valign="top">append an image sequence</td>
253 </tr>
254
255 <tr>
256 <td valign="top"><a href="../www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
257 <td valign="top">decipher image with this password</td>
258 </tr>
259
260 <tr>
261 <td valign="top"><a href="../www/command-line-options.html#auto-gamma">-auto-gamma</a></td>
262 <td valign="top">automagically adjust gamma level of image</td>
263 </tr>
264
265 <tr>
266 <td valign="top"><a href="../www/command-line-options.html#auto-level">-auto-level</a></td>
267 <td valign="top">automagically adjust color levels of image</td>
268 </tr>
269
270 <tr>
271 <td valign="top"><a href="../www/command-line-options.html#auto-orient">-auto-orient</a></td>
272 <td valign="top">automagically orient image</td>
273 </tr>
274
275 <tr>
276 <td valign="top"><a href="../www/command-line-options.html#average">-average</a></td>
277 <td valign="top">average an image sequence</td>
278 </tr>
279
280 <tr>
281 <td valign="top"><a href="../www/command-line-options.html#background">-background <em class="option">color</em></a></td>
282 <td valign="top">background color</td>
283 </tr>
284
285 <tr>
286 <td valign="top"><a href="../www/command-line-options.html#bench">-bench <em class="option">iterations</em></a></td>
287 <td valign="top">measure performance</td>
288 </tr>
289
290 <tr>
291 <td valign="top"><a href="../www/command-line-options.html#bias">-bias <em class="option">value</em></a></td>
292 <td valign="top">add bias when convolving an image</td>
293 </tr>
294
295 <tr>
296 <td valign="top"><a href="../www/command-line-options.html#black-threshold">-black-threshold <em class="option">value</em></a></td>
297 <td valign="top">force all pixels below the threshold into black</td>
298 </tr>
299
300 <tr>
301 <td valign="top"><a href="../www/command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td>
302 <td valign="top">chromaticity blue primary point</td>
303 </tr>
304
305 <tr>
306 <td valign="top"><a href="../www/command-line-options.html#blue-shift">-blue-shift <em class="option">factor</em></a></td>
307 <td valign="top">simulate a scene at nighttime in the moonlight</td>
308 </tr>
309
310 <tr>
311 <td valign="top"><a href="../www/command-line-options.html#blur">-blur <em class="option">geometry</em></a></td>
312 <td valign="top">reduce image noise and reduce detail levels</td>
313 </tr>
314
315 <tr>
316 <td valign="top"><a href="../www/command-line-options.html#border">-border <em class="option">geometry</em></a></td>
317 <td valign="top">surround image with a border of color</td>
318 </tr>
319
320 <tr>
321 <td valign="top"><a href="../www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
322 <td valign="top">border color</td>
323 </tr>
324
325 <tr>
cristy16ff93c2010-01-13 23:18:07 +0000[diff] [blame]326 <td valign="top"><a href="../www/command-line-options.html#brightness-contrast">-brightness-contrast <em class="option">geometry</em></a></td>
327 <td valign="top">improve brightness / contrast of the image</td>
328 </tr>
329
330 <tr>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]331 <td valign="top"><a href="../www/command-line-options.html#caption">-caption <em class="option">string</em></a></td>
332 <td valign="top">assign a caption to an image</td>
333 </tr>
334
335 <tr>
336 <td valign="top"><a href="../www/command-line-options.html#cdl">-cdl <em class="option">filename</em></a></td>
337 <td valign="top">color correct with a color decision list</td>
338 </tr>
339
340 <tr>
341 <td valign="top"><a href="../www/command-line-options.html#channel">-channel <em class="option">type</em></a></td>
342 <td valign="top">apply option to select image channels</td>
343 </tr>
344
345 <tr>
346 <td valign="top"><a href="../www/command-line-options.html#charcoal">-charcoal <em class="option">radius</em></a></td>
347 <td valign="top">simulate a charcoal drawing</td>
348 </tr>
349
350 <tr>
351 <td valign="top"><a href="../www/command-line-options.html#chop">-chop <em class="option">geometry</em></a></td>
352 <td valign="top">remove pixels from the image interior</td>
353 </tr>
354
355 <tr>
cristyb4c03bb2009-09-27 13:55:46 +0000[diff] [blame]356 <td valign="top"><a href="../www/command-line-options.html#clamp">-clamp</a></td>
357 <td valign="top">restrict colors from 0 to the quantum depth</td>
358 </tr>
359
360 <tr>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]361 <td valign="top"><a href="../www/command-line-options.html#clip">-clip</a></td>
362 <td valign="top">clip along the first path from the 8BIM profile</td>
363 </tr>
364
365 <tr>
366 <td valign="top"><a href="../www/command-line-options.html#clip-mask">-clip-mask</a> <em class="option">filename</em></td>
367 <td valign="top">associate clip mask with the image</td>
368 </tr>
369
370 <tr>
371 <td valign="top"><a href="../www/command-line-options.html#clip-path">-clip-path <em class="option">id</em></a></td>
372 <td valign="top">clip along a named path from the 8BIM profile</td>
373 </tr>
374
375 <tr>
376 <td valign="top"><a href="../www/command-line-options.html#clone">-clone <em class="option">index</em></a></td>
377 <td valign="top">clone an image</td>
378 </tr>
379
380 <tr>
381 <td valign="top"><a href="../www/command-line-options.html#clut">-clut</a></td>
382 <td valign="top">apply a color lookup table to the image</td>
383 </tr>
384
385 <tr>
386 <td valign="top"><a href="../www/command-line-options.html#contrast-stretch">-contrast-stretch <em class="option">geometry</em></a></td>
387 <td valign="top">improve the contrast in an image by `stretching' the range of intensity value</td>
388 </tr>
389
390 <tr>
391 <td valign="top"><a href="../www/command-line-options.html#coalesce">-coalesce</a></td>
392 <td valign="top">merge a sequence of images</td>
393 </tr>
394
395 <tr>
396 <td valign="top"><a href="../www/command-line-options.html#colorize">-colorize <em class="option">value</em></a></td>
397 <td valign="top">colorize the image with the fill color</td>
398 </tr>
399
400 <tr>
401 <td valign="top"><a href="../www/command-line-options.html#colors">-colors <em class="option">value</em></a></td>
402 <td valign="top">preferred number of colors in the image</td>
403 </tr>
404
405 <tr>
406 <td valign="top"><a href="../www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
407 <td valign="top">set image colorspace</td>
408 </tr>
409
410 <tr>
411 <td valign="top"><a href="../www/command-line-options.html#combine">-combine</a></td>
412 <td valign="top">combine a sequence of images</td>
413 </tr>
414
415 <tr>
416 <td valign="top"><a href="../www/command-line-options.html#comment">-comment <em class="option">string</em></a></td>
417 <td valign="top">annotate image with comment</td>
418 </tr>
419
420 <tr>
421 <td valign="top"><a href="../www/command-line-options.html#compose">-compose <em class="option">operator</em></a></td>
422 <td valign="top">set image composite operator</td>
423 </tr>
424
425 <tr>
426 <td valign="top"><a href="../www/command-line-options.html#composite">-composite</a></td>
427 <td valign="top">composite image</td>
428 </tr>
429
430 <tr>
431 <td valign="top"><a href="../www/command-line-options.html#compress">-compress <em class="option">type</em></a></td>
432 <td valign="top">image compression type</td>
433 </tr>
434
435 <tr>
436 <td valign="top"><a href="../www/command-line-options.html#contrast">-contrast</a></td>
437 <td valign="top">enhance or reduce the image contrast</td>
438 </tr>
439
440 <tr>
441 <td valign="top"><a href="../www/command-line-options.html#convolve">-convolve <em class="option">coefficients</em></a></td>
442 <td valign="top">apply a convolution kernel to the image</td>
443 </tr>
444
445 <tr>
446 <td valign="top"><a href="../www/command-line-options.html#crop">-crop <em class="option">geometry</em></a></td>
447 <td valign="top">crop the image</td>
448 </tr>
449
450 <tr>
451 <td valign="top"><a href="../www/command-line-options.html#cycle">-cycle <em class="option">amount</em></a></td>
452 <td valign="top">cycle the image colormap</td>
453 </tr>
454
455 <tr>
456 <td valign="top"><a href="../www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
457 <td valign="top">convert cipher pixels to plain</td>
458 </tr>
459
460 <tr>
461 <td valign="top"><a href="../www/command-line-options.html#debug">-debug <em class="option">events</em></a></td>
462 <td valign="top">display copious debugging information</td>
463 </tr>
464
465 <tr>
466 <td valign="top"><a href="../www/command-line-options.html#define">-define <em class="option">format:option</em></a></td>
467 <td valign="top">define one or more image format options</td>
468 </tr>
469
470 <tr>
471 <td valign="top"><a href="../www/command-line-options.html#deconstruct">-deconstruct</a></td>
472 <td valign="top">break down an image sequence into constituent parts</td>
473 </tr>
474
475 <tr>
476 <td valign="top"><a href="../www/command-line-options.html#delay">-delay <em class="option">value</em></a></td>
477 <td valign="top">display the next image after pausing</td>
478 </tr>
479
480 <tr>
481 <td valign="top"><a href="../www/command-line-options.html#delete">-delete <em class="option">index</em></a></td>
482 <td valign="top">delete the image from the image sequence</td>
483 </tr>
484
485 <tr>
486 <td valign="top"><a href="../www/command-line-options.html#density">-density <em class="option">geometry</em></a></td>
487 <td valign="top">horizontal and vertical density of the image</td>
488 </tr>
489
490 <tr>
491 <td valign="top"><a href="../www/command-line-options.html#depth">-depth <em class="option">value</em></a></td>
492 <td valign="top">image depth</td>
493 </tr>
494
495 <tr>
496 <td valign="top"><a href="../www/command-line-options.html#despeckle">-despeckle</a></td>
497 <td valign="top">reduce the speckles within an image</td>
498 </tr>
499
500 <tr>
501 <td valign="top"><a href="../www/command-line-options.html#display">-display <em class="option">server</em></a></td>
502 <td valign="top">get image or font from this X server</td>
503 </tr>
504
505 <tr>
506 <td valign="top"><a href="../www/command-line-options.html#dispose">-dispose <em class="option">method</em></a></td>
507 <td valign="top">layer disposal method</td>
508 </tr>
509
510 <tr>
511 <td valign="top"><a href="../www/command-line-options.html#distort">-distort <em class="option">type coefficients</em></a></td>
512 <td valign="top">distort image</td>
513 </tr>
514
515 <tr>
516 <td valign="top"><a href="../www/command-line-options.html#dither">-dither <em class="option">method</em></a></td>
517 <td valign="top">apply error diffusion to image</td>
518 </tr>
519
520 <tr>
521 <td valign="top"><a href="../www/command-line-options.html#draw">-draw <em class="option">string</em></a></td>
522 <td valign="top">annotate the image with a graphic primitive</td>
523 </tr>
524
525 <tr>
526 <td valign="top"><a href="../www/command-line-options.html#edge">-edge <em class="option">radius</em></a></td>
527 <td valign="top">apply a filter to detect edges in the image</td>
528 </tr>
529
530 <tr>
531 <td valign="top"><a href="../www/command-line-options.html#emboss">-emboss <em class="option">radius</em></a></td>
532 <td valign="top">emboss an image</td>
533 </tr>
534
535 <tr>
536 <td valign="top"><a href="../www/command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td>
537 <td valign="top">convert plain pixels to cipher pixels</td>
538 </tr>
539
540 <tr>
541 <td valign="top"><a href="../www/command-line-options.html#encoding">-encoding <em class="option">type</em></a></td>
542 <td valign="top">text encoding type</td>
543 </tr>
544
545 <tr>
546 <td valign="top"><a href="../www/command-line-options.html#endian">-endian <em class="option">type</em></a></td>
547 <td valign="top">endianness (MSB or LSB) of the image</td>
548 </tr>
549
550 <tr>
551 <td valign="top"><a href="../www/command-line-options.html#enhance">-enhance</a></td>
552 <td valign="top">apply a digital filter to enhance a noisy image</td>
553 </tr>
554
555 <tr>
556 <td valign="top"><a href="../www/command-line-options.html#equalize">-equalize</a></td>
557 <td valign="top">perform histogram equalization to an image</td>
558 </tr>
559
560 <tr>
561 <td valign="top"><a href="../www/command-line-options.html#evaluate">-evaluate <em class="option">operator value</em></a></td>
562 <td valign="top">evaluate an arithmetic, relational, or logical expression</td>
563 </tr>
564
565 <tr>
566 <td valign="top"><a href="../www/command-line-options.html#extent">-extent <em class="option">geometry</em></a></td>
567 <td valign="top">set the image size</td>
568 </tr>
569
570 <tr>
571 <td valign="top"><a href="../www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
572 <td valign="top">extract area from image</td>
573 </tr>
574
575 <tr>
576 <td valign="top"><a href="../www/command-line-options.html#family">-family <em class="option">name</em></a></td>
577 <td valign="top">render text with this font family</td>
578 </tr>
579
580 <tr>
581 <td valign="top"><a href="../www/command-line-options.html#fft">-fft</a></td>
582 <td valign="top">implments the discrete Fourier transform (DFT)</td>
583 </tr>
584
585 <tr>
586 <td valign="top"><a href="../www/command-line-options.html#fill">-fill <em class="option">color</em></a></td>
587 <td valign="top">color to use when filling a graphic primitive</td>
588 </tr>
589
590 <tr>
591 <td valign="top"><a href="../www/command-line-options.html#filter">-filter <em class="option">type</em></a></td>
592 <td valign="top">use this filter when resizing an image</td>
593 </tr>
594
595 <tr>
596 <td valign="top"><a href="../www/command-line-options.html#flatten">-flatten</a></td>
597 <td valign="top">flatten a sequence of images</td>
598 </tr>
599
600 <tr>
601 <td valign="top"><a href="../www/command-line-options.html#flip">-flip</a></td>
602 <td valign="top">flip image in the vertical direction</td>
603 </tr>
604
605 <tr>
606 <td valign="top"><a href="../www/command-line-options.html#floodfill">-floodfill <em class="option">geometry color</em></a></td>
607 <td valign="top">floodfill the image with color</td>
608 </tr>
609
610 <tr>
611 <td valign="top"><a href="../www/command-line-options.html#flop">-flop</a></td>
612 <td valign="top">flop image in the horizontal direction</td>
613 </tr>
614
615 <tr>
616 <td valign="top"><a href="../www/command-line-options.html#font">-font <em class="option">name</em></a></td>
617 <td valign="top">render text with this font</td>
618 </tr>
619
620 <tr>
621 <td valign="top"><a href="../www/command-line-options.html#format_identify_">-format <em class="option">string</em></a></td>
622 <td valign="top">output formatted image characteristics</td>
623 </tr>
624
625 <tr>
626 <td valign="top"><a href="../www/command-line-options.html#frame">-frame <em class="option">geometry</em></a></td>
627 <td valign="top">surround image with an ornamental border</td>
628 </tr>
629
630 <tr>
631 <td valign="top"><a href="../www/command-line-options.html#function">-function <em class="option">name</em></a></td>
632 <td valign="top">apply a function to the image</td>
633 </tr>
634
635 <tr>
636 <td valign="top"><a href="../www/command-line-options.html#fuzz">-fuzz <em class="option">distance</em></a></td>
637 <td valign="top">colors within this distance are considered equal</td>
638 </tr>
639
640 <tr>
641 <td valign="top"><a href="../www/command-line-options.html#fx">-fx <em class="option">expression</em></a></td>
642 <td valign="top">apply mathematical expression to an image channel(s)</td>
643 </tr>
644
645 <tr>
646 <td valign="top"><a href="../www/command-line-options.html#gamma">-gamma <em class="option">value</em></a></td>
647 <td valign="top">level of gamma correction</td>
648 </tr>
649
650 <tr>
cristyc92bdb42009-12-18 21:29:02 +0000[diff] [blame]651 <td valign="top"><a href="../www/command-line-options.html#gaussian-blur">-gaussian-blur <em class="option">geometry</em></a></td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]652 <td valign="top">reduce image noise and reduce detail levels</td>
653 </tr>
654
655 <tr>
656 <td valign="top"><a href="../www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
657 <td valign="top">preferred size or location of the image</td>
658 </tr>
659
660 <tr>
661 <td valign="top"><a href="../www/command-line-options.html#gravity">-gravity <em class="option">type</em></a></td>
662 <td valign="top">horizontal and vertical text placement</td>
663 </tr>
664
665 <tr>
666 <td valign="top"><a href="../www/command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td>
667 <td valign="top">chromaticity green primary point</td>
668 </tr>
669
670 <tr>
671 <td valign="top"><a href="../www/command-line-options.html#help">-help</a></td>
672 <td valign="top">print program options</td>
673 </tr>
674
675 <tr>
676 <td valign="top"><a href="../www/command-line-options.html#identify">-identify</a></td>
677 <td valign="top">identify the format and characteristics of the image</td>
678 </tr>
679
680 <tr>
681 <td valign="top"><a href="../www/command-line-options.html#ift">-ift</a></td>
682 <td valign="top">implements the inverse discrete Fourier transform (DFT)</td>
683 </tr>
684
685 <tr>
686 <td valign="top"><a href="../www/command-line-options.html#implode">-implode <em class="option">amount</em></a></td>
687 <td valign="top">implode image pixels about the center</td>
688 </tr>
689
690 <tr>
691 <td valign="top"><a href="../www/command-line-options.html#insert">-insert <em class="option">index</em></a></td>
692 <td valign="top">insert last image into the image sequence</td>
693 </tr>
694
695 <tr>
696 <td valign="top"><a href="../www/command-line-options.html#intent">-intent <em class="option">type</em></a></td>
697 <td valign="top">type of rendering intent when managing the image color</td>
698 </tr>
699
700 <tr>
701 <td valign="top"><a href="../www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
702 <td valign="top">type of image interlacing scheme</td>
703 </tr>
704
705 <tr>
cristyf3bb4782009-09-08 13:10:04 +0000[diff] [blame]706 <td valign="top"><a href="../www/command-line-options.html#interline-spacing">-interline-spacing <em class="option">value</em></a></td>
707 <td valign="top">the space between two text lines</td>
708 </tr>
709
710 <tr>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]711 <td valign="top"><a href="../www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
712 <td valign="top">pixel color interpolation method</td>
713 </tr>
714
715 <tr>
716 <td valign="top"><a href="../www/command-line-options.html#interword-spacing">-interword-spacing <em class="option">value</em></a></td>
717 <td valign="top">the space between two words</td>
718 </tr>
719
720 <tr>
721 <td valign="top"><a href="../www/command-line-options.html#kerning">-kerning <em class="option">value</em></a></td>
722 <td valign="top">the space between two characters</td>
723 </tr>
724
725 <tr>
726 <td valign="top"><a href="../www/command-line-options.html#label">-label <em class="option">string</em></a></td>
727 <td valign="top">assign a label to an image</td>
728 </tr>
729
730 <tr>
731 <td valign="top"><a href="../www/command-line-options.html#lat">-lat <em class="option">geometry</em></a></td>
732 <td valign="top">local adaptive thresholding</td>
733 </tr>
734
735 <tr>
736 <td valign="top"><a href="../www/command-line-options.html#layers">-layers <em class="option">method</em></a></td>
737 <td valign="top">optimize or compare image layers</td>
738 </tr>
739
740 <tr>
741 <td valign="top"><a href="../www/command-line-options.html#level">-level <em class="option">value</em></a></td>
742 <td valign="top">adjust the level of image contrast</td>
743 </tr>
744
745 <tr>
746 <td valign="top"><a href="../www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
747 <td valign="top">pixel cache resource limit</td>
748 </tr>
749
750 <tr>
751 <td valign="top"><a href="../www/command-line-options.html#linear-stretch">-linear-stretch <em class="option">geometry</em></a></td>
752 <td valign="top">linear with saturation histogram stretch</td>
753 </tr>
754
755 <tr>
756 <td valign="top"><a href="../www/command-line-options.html#liquid-rescale">-liquid-rescale <em class="option">geometry</em></a></td>
757 <td valign="top">rescale image with seam-carving</td>
758 </tr>
759
760 <tr>
761 <td valign="top"><a href="../www/command-line-options.html#log">-log <em class="option">format</em></a></td>
762 <td valign="top">format of debugging information</td>
763 </tr>
764
765 <tr>
766 <td valign="top"><a href="../www/command-line-options.html#loop">-loop <em class="option">iterations</em></a></td>
767 <td valign="top">add Netscape loop extension to your GIF animation</td>
768 </tr>
769
770 <tr>
771 <td valign="top"><a href="../www/command-line-options.html#mask">-mask <em class="option">filename</em></a></td>
772 <td valign="top">associate a mask with the image</td>
773 </tr>
774
775 <tr>
776 <td valign="top"><a href="../www/command-line-options.html#mattecolor">-mattecolor <em class="option">color</em></a></td>
777 <td valign="top">frame color</td>
778 </tr>
779
780 <tr>
cristyd2baf7d2010-03-06 04:26:44 +0000[diff] [blame]781 <td valign="top"><a href="../www/command-line-options.html#maximum">-maximum</a></td>
782 <td valign="top">return the maximum intensity for an image sequence</td>
783 </tr>
784
785 <tr>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]786 <td valign="top"><a href="../www/command-line-options.html#median">-median <em class="option">radius</em></a></td>
787 <td valign="top">apply a median filter to the image</td>
788 </tr>
789
790 <tr>
cristyd2baf7d2010-03-06 04:26:44 +0000[diff] [blame]791 <td valign="top"><a href="../www/command-line-options.html#minimum">-minimum</a></td>
792 <td valign="top">return the minimum intensity for an image sequence</td>
793 </tr>
794
795 <tr>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]796 <td valign="top"><a href="../www/command-line-options.html#modulate">-modulate <em class="option">value</em></a></td>
797 <td valign="top">vary the brightness, saturation, and hue</td>
798 </tr>
799
800 <tr>
801 <td valign="top"><a href="../www/command-line-options.html#monitor">-monitor</a></td>
802 <td valign="top">monitor progress</td>
803 </tr>
804
805 <tr>
806 <td valign="top"><a href="../www/command-line-options.html#monochrome">-monochrome</a></td>
807 <td valign="top">transform image to black and white</td>
808 </tr>
809
810 <tr>
811 <td valign="top"><a href="../www/command-line-options.html#morph">-morph <em class="option">value</em></a></td>
812 <td valign="top">morph an image sequence</td>
813 </tr>
814
815 <tr>
cristy488844c2010-01-22 14:02:05 +0000[diff] [blame]816 <td valign="top"><a href="../www/command-line-options.html#morphology">-morphology <em class="option">method</em></a> <em class="option">kernel</em></td>
817 <td valign="top">apply a morphology method to the image</td>
818 </tr>
819
820 <tr>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]821 <td valign="top"><a href="../www/command-line-options.html#motion-blur">-motion-blur <em class="option">geometry</em></a></td>
822 <td valign="top">simulate motion blur</td>
823 </tr>
824
825 <tr>
826 <td valign="top"><a href="../www/command-line-options.html#negate">-negate</a></td>
cristyb29bc032010-02-01 20:29:43 +0000[diff] [blame]827 <td valign="top">replace each pixel with its complementary color </td>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]828 </tr>
829
830 <tr>
831 <td valign="top"><a href="../www/command-line-options.html#noise">-noise <em class="option">radius</em></a></td>
832 <td valign="top">add or reduce noise in an image</td>
833 </tr>
834
835 <tr>
836 <td valign="top"><a href="../www/command-line-options.html#normalize">-normalize</a></td>
837 <td valign="top">transform image to span the full range of colors</td>
838 </tr>
839
840 <tr>
841 <td valign="top"><a href="../www/command-line-options.html#opaque">-opaque <em class="option">color</em></a></td>
842 <td valign="top">change this color to the fill color</td>
843 </tr>
844
845 <tr>
846 <td valign="top"><a href="../www/command-line-options.html#ordered-dither">-ordered-dither <em class="option">NxN</em></a></td>
847 <td valign="top">ordered dither the image</td>
848 </tr>
849
850 <tr>
851 <td valign="top"><a href="../www/command-line-options.html#orient">-orient <em class="option">type</em></a></td>
852 <td valign="top">image orientation</td>
853 </tr>
854
855 <tr>
856 <td valign="top"><a href="../www/command-line-options.html#page">-page <em class="option">geometry</em></a></td>
857 <td valign="top">size and location of an image canvas (setting)</td>
858 </tr>
859
860 <tr>
861 <td valign="top"><a href="../www/command-line-options.html#paint">-paint <em class="option">radius</em></a></td>
862 <td valign="top">simulate an oil painting</td>
863 </tr>
864
865 <tr>
866 <td valign="top"><a href="../www/command-line-options.html#ping">-ping</a></td>
867 <td valign="top">efficiently determine image attributes</td>
868 </tr>
869
870 <tr>
871 <td valign="top"><a href="../www/command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td>
872 <td valign="top">font point size</td>
873 </tr>
874
875 <tr>
876 <td valign="top"><a href="../www/command-line-options.html#polaroid">-polaroid <em class="option">angle</em></a></td>
877 <td valign="top">simulate a Polaroid picture</td>
878 </tr>
879
880 <tr>
881 <td valign="top"><a href="../www/command-line-options.html#posterize">-posterize <em class="option">levels</em></a></td>
882 <td valign="top">reduce the image to a limited number of color levels</td>
883 </tr>
884
885 <tr>
cristyd43a46b2010-01-21 02:13:41 +0000[diff] [blame]886 <td valign="top"><a href="../www/command-line-options.html#precision">-precision <em class="option">value</em></a></td>
887 <td valign="top">set the maximum number of significant digits to be printed</td>
888 </tr>
889
890 <tr>
cristy3ed852e2009-09-05 21:47:34 +0000[diff] [blame]891 <td valign="top"><a href="../www/command-line-options.html#preview">-preview <em class="option">type</em></a></td>
892 <td valign="top">image preview type</td>
893 </tr>
894
895 <tr>
896 <td valign="top"><a href="../www/command-line-options.html#print">-print <em class="option">string</em></a></td>
897 <td valign="top">interpret string and print to console</td>
898 </tr>
899
900 <tr>
901 <td valign="top"><a href="../www/command-line-options.html#process">-process <em class="option">image-filter</em></a></td>
902 <td valign="top">process the image with a custom image filter</td>
903 </tr>
904
905 <tr>
906 <td valign="top"><a href="../www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
907 <td valign="top">add, delete, or apply an image profile</td>
908 </tr>
909
910 <tr>
911 <td valign="top"><a href="../www/command-line-options.html#quality">-quality <em class="option">value</em></a></td>
912 <td valign="top">JPEG/MIFF/PNG compression level</td>
913 </tr>
914
915 <tr>
916 <td valign="top"><a href="../www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
917 <td valign="top">reduce image colors in this colorspace</td>
918 </tr>
919
920 <tr>
921 <td valign="top"><a href="../www/command-line-options.html#quiet">-quiet</a></td>
922 <td valign="top">suppress all warning messages</td>
923 </tr>
924
925 <tr>
926 <td valign="top"><a href="../www/command-line-options.html#radial-blur">-radial-blur <em class="option">angle</em></a></td>
927 <td valign="top">radial blur the image</td>
928 </tr>
929
930 <tr>
931 <td valign="top"><a href="../www/command-line-options.html#raise">-raise <em class="option">value</em></a></td>
932 <td valign="top">lighten/darken image edges to create a 3-D effect</td>
933 </tr>
934
935 <tr>
936 <td valign="top"><a href="../www/command-line-options.html#random-threshold">-random-threshold <em class="option">low,high</em></a></td>
937 <td valign="top">random threshold the image</td>
938 </tr>
939
940 <tr>
941 <td valign="top"><a href="../www/command-line-options.html#recolor">-recolor <em class="option">matrix</em></a></td>
942 <td valign="top">translate, scale, shear, or rotate image colors.</td>
943 </tr>
944
945 <tr>
946 <td valign="top"><a href="../www/command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td>
947 <td valign="top">chromaticity red primary point</td>
948 </tr>
949
950 <tr>
951 <td valign="top"><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
952 <td valign="top">pay attention to warning messages.</td>
953 </tr>
954
955 <tr>
956 <td valign="top"><a href="../www/command-line-options.html#region">-region <em class="option">geometry</em></a></td>
957 <td valign="top">apply options to a portion of the image</td>
958 </tr>
959
960 <tr>
961 <td valign="top"><a href="../www/command-line-options.html#remap">-remap <em class="option">filename</em></a></td>
962 <td valign="top">transform image colors to match this set of colors</td>
963 </tr>
964
965 <tr>
966 <td valign="top"><a href="../www/command-line-options.html#render">-render</a></td>
967 <td valign="top">render vector graphics</td>
968 </tr>
969
970 <tr>
971 <td valign="top"><a href="../www/command-line-options.html#repage">-repage <em class="option">geometry</em></a></td>
972 <td valign="top">size and location of an image canvas</td>
973 </tr>
974
975 <tr>
976 <td valign="top"><a href="../www/command-line-options.html#resample">-resample <em class="option">geometry</em></a></td>
977 <td valign="top">change the resolution of an image</td>
978 </tr>
979
980 <tr>
981 <td valign="top"><a href="../www/command-line-options.html#resize">-resize <em class="option">geometry</em></a></td>
982 <td valign="top">resize the image</td>
983 </tr>
984
985 <tr>
986 <td valign="top"><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
987 <td valign="top">settings remain in effect until parenthesis boundary.</td>
988 </tr>
989
990 <tr>
991 <td valign="top"><a href="../www/command-line-options.html#roll">-roll <em class="option">geometry</em></a></td>
992 <td valign="top">roll an image vertically or horizontally</td>
993 </tr>
994
995 <tr>
996 <td valign="top"><a href="../www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
997 <td valign="top">apply Paeth rotation to the image</td>
998 </tr>
999
1000 <tr>
1001 <td valign="top"><a href="../www/command-line-options.html#sample">-sample <em class="option">geometry</em></a></td>
1002 <td valign="top">scale image with pixel sampling</td>
1003 </tr>
1004
1005 <tr>
1006 <td valign="top"><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
1007 <td valign="top">horizontal and vertical sampling factor</td>
1008 </tr>
1009
1010 <tr>
1011 <td valign="top"><a href="../www/command-line-options.html#scale">-scale <em class="option">geometry</em></a></td>
1012 <td valign="top">scale the image</td>
1013 </tr>
1014
1015 <tr>
1016 <td valign="top"><a href="../www/command-line-options.html#scene">-scene <em class="option">value</em></a></td>
1017 <td valign="top">image scene number</td>
1018 </tr>
1019
1020 <tr>
1021 <td valign="top"><a href="../www/command-line-options.html#seed">-seed <em class="option">value</em></a></td>
1022 <td valign="top">seed a new sequence of pseudo-random numbers</td>
1023 </tr>
1024
1025 <tr>
1026 <td valign="top"><a href="../www/command-line-options.html#segment">-segment <em class="option">values</em></a></td>
1027 <td valign="top">segment an image</td>
1028 </tr>
1029
1030 <tr>
1031 <td valign="top"><a href="../www/command-line-options.html#threshold">-selective-blur <em class="option">geometry</em></a></td>
1032 <td valign="top">selectively blur pixels within a contrast threshold</td>
1033 </tr>
1034
1035 <tr>
1036 <td valign="top"><a href="../www/command-line-options.html#separate">-separate</a></td>
1037 <td valign="top">separate an image channel into a grayscale image</td>
1038 </tr>
1039
1040 <tr>
1041 <td valign="top"><a href="../www/command-line-options.html#sepia-tone">-sepia-tone <em class="option">threshold</em></a></td>
1042 <td valign="top">simulate a sepia-toned photo</td>
1043 </tr>
1044
1045 <tr>
1046 <td valign="top"><a href="../www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
1047 <td valign="top">set an image attribute</td>
1048 </tr>
1049
1050 <tr>
1051 <td valign="top"><a href="../www/command-line-options.html#shade">-shade <em class="option">degrees</em></a></td>
1052 <td valign="top">shade the image using a distant light source</td>
1053 </tr>
1054
1055 <tr>
1056 <td valign="top"><a href="../www/command-line-options.html#shadow">-shadow <em class="option">geometry</em></a></td>
1057 <td valign="top">simulate an image shadow</td>
1058 </tr>
1059
1060 <tr>
1061 <td valign="top"><a href="../www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
1062 <td valign="top">sharpen the image</td>
1063 </tr>
1064
1065 <tr>
1066 <td valign="top"><a href="../www/command-line-options.html#shave">-shave <em class="option">geometry</em></a></td>
1067 <td valign="top">shave pixels from the image edges</td>
1068 </tr>
1069
1070 <tr>
1071 <td valign="top"><a href="../www/command-line-options.html#shear">-shear <em class="option">geometry</em></a></td>
1072 <td valign="top">slide one edge of the image along the X or Y axis</td>
1073 </tr>
1074
1075 <tr>
1076 <td valign="top"><a href="../www/command-line-options.html#sigmoidal">-sigmoidal-contrast <em class="option">geometry</em></a></td>
1077 <td valign="top">increase the contrast without saturating highlights or shadows</td>
1078 </tr>
1079
1080 <tr>
1081 <td valign="top"><a href="../www/command-line-options.html#size">-size <em class="option">geometry</em></a></td>
1082 <td valign="top">width and height of image</td>
1083 </tr>
1084
1085 <tr>
1086 <td valign="top"><a href="../www/command-line-options.html#sketch">-sketch <em class="option">geometry</em></a></td>
1087 <td valign="top">simulate a pencil sketch</td>
1088 </tr>
1089
1090 <tr>
1091 <td valign="top"><a href="../www/command-line-options.html#solarize">-solarize <em class="option">threshold</em></a></td>
1092 <td valign="top">negate all pixels above the threshold level</td>
1093 </tr>
1094
1095 <tr>
1096 <td valign="top"><a href="../www/command-line-options.html#splice">-splice <em class="option">geometry</em></a></td>
1097 <td valign="top">splice the background color into the image</td>
1098 </tr>
1099
1100 <tr>
1101 <td valign="top"><a href="../www/command-line-options.html#spread">-spread <em class="option">radius</em></a></td>
1102 <td valign="top">displace image pixels by a random amount</td>
1103 </tr>
1104
1105 <tr>
1106 <td valign="top"><a href="../www/command-line-options.html#strip">-strip</a></td>
1107 <td valign="top">strip image of all profiles and comments</td>
1108 </tr>
1109
1110 <tr>
1111 <td valign="top"><a href="../www/command-line-options.html#stroke">-stroke <em class="option">color</em></a></td>
1112 <td valign="top">graphic primitive stroke color</td>
1113 </tr>
1114
1115 <tr>
1116 <td valign="top"><a href="../www/command-line-options.html#strokewidth">-strokewidth <em class="option">value</em></a></td>
1117 <td valign="top">graphic primitive stroke width</td>
1118 </tr>
1119
1120 <tr>
1121 <td valign="top"><a href="../www/command-line-options.html#stretch">-stretch <em class="option">type</em></a></td>
1122 <td valign="top">render text with this font stretch</td>
1123 </tr>
1124
1125 <tr>
1126 <td valign="top"><a href="../www/command-line-options.html#style">-style <em class="option">type</em></a></td>
1127 <td valign="top">render text with this font style</td>
1128 </tr>
1129
1130 <tr>
1131 <td valign="top"><a href="../www/command-line-options.html#swap">-swap <em class="option">indexes</em></a></td>
1132 <td valign="top">swap two images in the image sequence</td>
1133 </tr>
1134
1135 <tr>
1136 <td valign="top"><a href="../www/command-line-options.html#swirl">-swirl <em class="option">degrees</em></a></td>
1137 <td valign="top">swirl image pixels about the center</td>
1138 </tr>
1139
1140 <tr>
1141 <td valign="top"><a href="../www/command-line-options.html#texture">-texture <em class="option">filename</em></a></td>
1142 <td valign="top">name of texture to tile onto the image background</td>
1143 </tr>
1144
1145 <tr>
1146 <td valign="top"><a href="../www/command-line-options.html#threshold">-threshold <em class="option">value</em></a></td>
1147 <td valign="top">threshold the image</td>
1148 </tr>
1149
1150 <tr>
1151 <td valign="top"><a href="../www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td>
1152 <td valign="top">create a thumbnail of the image</td>
1153 </tr>
1154
1155 <tr>
1156 <td valign="top"><a href="../www/command-line-options.html#tile">-tile <em class="option">filename</em></a></td>
1157 <td valign="top">tile image when filling a graphic primitive</td>
1158 </tr>
1159
1160 <tr>
1161 <td valign="top"><a href="../www/command-line-options.html#tile-offset">-tile-offset <em class="option">geometry</em></a></td>
1162 <td valign="top">set the image tile offset</td>
1163 </tr>
1164
1165 <tr>
1166 <td valign="top"><a href="../www/command-line-options.html#tint">-tint <em class="option">value</em></a></td>
1167 <td valign="top">tint the image with the fill color</td>
1168 </tr>
1169
1170 <tr>
1171 <td valign="top"><a href="../www/command-line-options.html#transform">-transform</a></td>
1172 <td valign="top">affine transform image</td>
1173 </tr>
1174
1175 <tr>
1176 <td valign="top"><a href="../www/command-line-options.html#transparent">-transparent <em class="option">color</em></a></td>
1177 <td valign="top">make this color transparent within the image</td>
1178 </tr>
1179
1180 <tr>
1181 <td valign="top"><a href="../www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
1182 <td valign="top">transparent color</td>
1183 </tr>
1184
1185 <tr>
1186 <td valign="top"><a href="../www/command-line-options.html#transpose">-transpose</a></td>
1187 <td valign="top">flip image in the vertical direction and rotate 90 degrees</td>
1188 </tr>
1189
1190 <tr>
1191 <td valign="top"><a href="../www/command-line-options.html#transverse">-transverse</a></td>
1192 <td valign="top">flop image in the horizontal direction and rotate 270 degrees</td>
1193 </tr>
1194
1195 <tr>
1196 <td valign="top"><a href="../www/command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td>
1197 <td valign="top">color tree depth</td>
1198 </tr>
1199
1200 <tr>
1201 <td valign="top"><a href="../www/command-line-options.html#trim">-trim</a></td>
1202 <td valign="top">trim image edges</td>
1203 </tr>
1204
1205 <tr>
1206 <td valign="top"><a href="../www/command-line-options.html#type">-type <em class="option">type</em></a></td>
1207 <td valign="top">image type</td>
1208 </tr>
1209
1210 <tr>
1211 <td valign="top"><a href="../www/command-line-options.html#undercolor">-undercolor <em class="option">color</em></a></td>
1212 <td valign="top">annotation bounding box color</td>
1213 </tr>
1214
1215 <tr>
1216 <td valign="top"><a href="../www/command-line-options.html#unique-colors">-unique-colors</a></td>
1217 <td valign="top">discard all but one of any pixel color.</td>
1218 </tr>
1219
1220 <tr>
1221 <td valign="top"><a href="../www/command-line-options.html#units">-units <em class="option">type</em></a></td>
1222 <td valign="top">the units of image resolution</td>
1223 </tr>
1224
1225 <tr>
1226 <td valign="top"><a href="../www/command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td>
1227 <td valign="top">sharpen the image</td>
1228 </tr>
1229
1230 <tr>
1231 <td valign="top"><a href="../www/command-line-options.html#verbose">-verbose</a></td>
1232 <td valign="top">print detailed information about the image</td>
1233 </tr>
1234
1235 <tr>
1236 <td valign="top"><a href="../www/command-line-options.html#version">-version</a></td>
1237 <td valign="top">print version information</td>
1238 </tr>
1239
1240 <tr>
1241 <td valign="top"><a href="../www/command-line-options.html#view">-view</a></td>
1242 <td valign="top">FlashPix viewing transforms</td>
1243 </tr>
1244
1245 <tr>
1246 <td valign="top"><a href="../www/command-line-options.html#vignette">-vignette <em class="option">geometry</em></a></td>
1247 <td valign="top">soften the edges of the image in vignette style</td>
1248 </tr>
1249
1250 <tr>
1251 <td valign="top"><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
1252 <td valign="top">access method for pixels outside the boundaries of the image</td>
1253 </tr>
1254
1255 <tr>
1256 <td valign="top"><a href="../www/command-line-options.html#wave">-wave <em class="option">geometry</em></a></td>
1257 <td valign="top">alter an image along a sine wave</td>
1258 </tr>
1259
1260 <tr>
1261 <td valign="top"><a href="../www/command-line-options.html#weight">-weight <em class="option">type</em></a></td>
1262 <td valign="top">render text with this font weight</td>
1263 </tr>
1264
1265 <tr>
1266 <td valign="top"><a href="../www/command-line-options.html#white-point">-white-point <em class="option">point</em></a></td>
1267 <td valign="top">chromaticity white point</td>
1268 </tr>
1269
1270 <tr>
1271 <td valign="top"><a href="../www/command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td>
1272 <td valign="top">force all pixels above the threshold into white</td>
1273 </tr>
1274
1275 <tr>
1276 <td valign="top"><a href="../www/command-line-options.html#write">-write <em class="option">filename</em></a></td>
1277 <td valign="top">write images to this file</td>
1278 </tr>
1279
1280 </tbody>
1281</table>
1282
1283</div>
cristy3eaa0ef2010-03-06 20:35:26 +0000[diff] [blame^]1284
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