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