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 240 <h1>ImageMagick Mogrify Command-line Tool</h1>
 241 <p class="navigation-index">[<a href="mogrify.html#usage">Example Usage</a> &bull; <a href="mogrify.html#options">Option Summary</a>]</p>
 242
 243 <div class="doc-section">
 244 <p>Use the <kbd>mogrify</kbd> program to resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more.   This tool is similiar to <a href="convert.html">convert</a> except that the original image file is overwritten (unless you change the file suffix with the <a href="command-line-options.html#format">-format</a> option) with any changes you request.  See <a href="command-line-processing.html">Command Line Processing</a> for advice on how to structure your <kbd>mogrify</kbd> command or see below for sample usages of the command.</p>
 245 </div>
 246
 247 <h2><a id="usage"></a>Example Usage</h2>
 248 <div class="doc-section">
 249
 250 <p>We list a few examples of the <kbd>mogrify</kbd> command here to illustrate its usefulness and ease of use.  To get started, lets reduce the size of our
 251 rose:</p>
 252
 253 <p class='crt'><span class="crtprompt"> $ </span><span class='crtin'>mogrify -resize 50% rose.jpg</span></p>
 254 <p class="image">
 255   <a href="../images/rose.jpg">
 256   <img src="../images/rose.jpg" width="70" height="46" alt="rose" />
 257   </a>
 258   <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" />
 259   <a href="../images/rose.png">
 260   <img style="margin-top:12px; margin-bottom: 11px;" src="../images/rose.png" width="35" height="23" alt="rose" />
 261   </a>
 262 </p>
 263
 264 <p>You can resize all your JPEG images in a folder to a maximum dimension of 256x256 with this command:</p>
 265
 266 <p class='crt'><span class="crtprompt"> $ </span><span class='crtin'>mogrify -resize 256x256 *.jpg</span></p>
 267 <p>Finally, we convert all our PNG images to the JPEG format:</p>
 268
 269 <p class='crt'><span class="crtprompt"> $ </span><span class='crtin'>mogrify -format jpg *.png</span></p>
 270 <p>Here image files 1.png, 2.png, etc., are left untouched and files 1.jpg, 2.jpg, etc., are created.  They are copies of their respective PNG images except are stored  in the JPEG image format.</p>
 271
 272
 273 <p>You can find additional examples of using <kbd>mogrify</kbd> in <a href="http://www-106.ibm.com/developerworks/library/l-graf/?ca=dnt-428">Graphics from the Command Line</a>.  Further discussion is available in  <a href="http://www-106.ibm.com/developerworks/library/l-graf2/?ca=dgr-lnxw15GraphicsLine">More Graphics from the Command Line</a> and <a href="http://www.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>.</p>
 274
 275 </div>
 276
 277 <h2><a id="options"></a>Option Summary</h2>
 278 <div class="doc-section">
 279
 280 <p>The <kbd>mogrify</kbd> command recognizes these options.  Click on an option to get more details about how that option works.</p>
 281
 282 <table class="doc">
 283   <tbody>
 284   <tr>
 285     <th align="left">Option</th>
 286     <th align="left">Description</th>
 287   </tr>
 288
 289   <tr>
 290     <td valign="top"><a href="command-line-options.html#adaptive-blur">-adaptive-blur <em class="option">geometry</em></a></td>
 291     <td valign="top">adaptively blur pixels; decrease effect near edges</td>
 292   </tr>
 293
 294   <tr>
 295     <td valign="top"><a href="command-line-options.html#adaptive-resize">-adaptive-resize <em class="option">geometry</em></a></td>
 296     <td valign="top">adaptively resize image with data dependent triangulation.</td>
 297   </tr>
 298
 299   <tr>
 300     <td valign="top"><a href="command-line-options.html#adaptive-sharpen">-adaptive-sharpen <em class="option">geometry</em></a></td>
 301     <td valign="top">adaptively sharpen pixels; increase effect near edges</td>
 302   </tr>
 303
 304   <tr>
 305     <td valign="top"><a href="command-line-options.html#adjoin">-adjoin</a></td>
 306     <td valign="top">join images into a single multi-image file</td>
 307   </tr>
 308
 309   <tr>
 310     <td valign="top"><a href="command-line-options.html#affine">-affine <em class="option">matrix</em></a></td>
 311     <td valign="top">affine transform matrix</td>
 312   </tr>
 313
 314   <tr>
 315     <td valign="top"><a href="command-line-options.html#alpha">-alpha</a></td>
 316     <td valign="top">on, activate, off, deactivate, set, opaque, copy",
 317 transparent, extract, background, or shape the alpha channel</td>
 318   </tr>
 319
 320   <tr>
 321     <td valign="top"><a href="command-line-options.html#annotate">-annotate <em class="option">geometry text</em></a></td>
 322     <td valign="top">annotate the image with text</td>
 323   </tr>
 324
 325   <tr>
 326     <td valign="top"><a href="command-line-options.html#antialias">-antialias</a></td>
 327     <td valign="top">remove pixel-aliasing</td>
 328   </tr>
 329
 330   <tr>
 331     <td valign="top"><a href="command-line-options.html#append">-append</a></td>
 332     <td valign="top">append an image sequence</td>
 333   </tr>
 334
 335   <tr>
 336     <td valign="top"><a href="command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
 337     <td valign="top">decipher image with this password</td>
 338   </tr>
 339
 340   <tr>
 341     <td valign="top"><a href="command-line-options.html#auto-gamma">-auto-gamma</a></td>
 342     <td valign="top">automagically adjust gamma level of image</td>
 343   </tr>
 344
 345   <tr>
 346     <td valign="top"><a href="command-line-options.html#auto-level">-auto-level</a></td>
 347     <td valign="top">automagically adjust color levels of image</td>
 348   </tr>
 349
 350   <tr>
 351     <td valign="top"><a href="command-line-options.html#auto-orient">-auto-orient</a></td>
 352     <td valign="top">automagically orient image</td>
 353   </tr>
 354
 355   <tr>
 356     <td valign="top"><a href="command-line-options.html#background">-background <em class="option">color</em></a></td>
 357     <td valign="top">background color</td>
 358   </tr>
 359
 360   <tr>
 361     <td valign="top"><a href="command-line-options.html#bench">-bench <em class="option">iterations</em></a></td>
 362     <td valign="top">measure performance</td>
 363   </tr>
 364
 365   <tr>
 366     <td valign="top"><a href="command-line-options.html#bias">-bias <em class="option">value</em></a></td>
 367     <td valign="top">add bias when convolving an image</td>
 368   </tr>
 369
 370   <tr>
 371     <td valign="top"><a href="command-line-options.html#black-threshold">-black-threshold <em class="option">value</em></a></td>
 372     <td valign="top">force all pixels below the threshold into black</td>
 373   </tr>
 374
 375   <tr>
 376     <td valign="top"><a href="command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td>
 377     <td valign="top">chromaticity blue primary point</td>
 378   </tr>
 379
 380   <tr>
 381     <td valign="top"><a href="command-line-options.html#blue-shift">-blue-shift  <em class="option">factor</em></a></td>
 382     <td valign="top">simulate a scene at nighttime in the moonlight</td>
 383   </tr>
 384
 385   <tr>
 386     <td valign="top"><a href="command-line-options.html#blur">-blur <em class="option">geometry</em></a></td>
 387     <td valign="top">reduce image noise and reduce detail levels</td>
 388   </tr>
 389
 390   <tr>
 391     <td valign="top"><a href="command-line-options.html#border">-border <em class="option">geometry</em></a></td>
 392     <td valign="top">surround image with a border of color</td>
 393   </tr>
 394
 395   <tr>
 396     <td valign="top"><a href="command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
 397     <td valign="top">border color</td>
 398   </tr>
 399
 400   <tr>
 401     <td valign="top"><a href="command-line-options.html#brightness-contrast">-brightness-contrast <em class="option">geometry</em></a></td>
 402     <td valign="top">improve brightness / contrast of the image</td>
 403   </tr>
 404
 405   <tr>
 406     <td valign="top"><a href="command-line-options.html#caption">-caption <em class="option">string</em></a></td>
 407     <td valign="top">assign a caption to an image</td>
 408   </tr>
 409
 410   <tr>
 411     <td valign="top"><a href="command-line-options.html#cdl">-cdl <em class="option">filename</em></a></td>
 412     <td valign="top">color correct with a color decision list</td>
 413   </tr>
 414
 415   <tr>
 416     <td valign="top"><a href="command-line-options.html#channel">-channel <em class="option">type</em></a></td>
 417     <td valign="top">apply option to select image channels</td>
 418   </tr>
 419
 420   <tr>
 421     <td valign="top"><a href="command-line-options.html#charcoal">-charcoal <em class="option">radius</em></a></td>
 422     <td valign="top">simulate a charcoal drawing</td>
 423   </tr>
 424
 425   <tr>
 426     <td valign="top"><a href="command-line-options.html#chop">-chop <em class="option">geometry</em></a></td>
 427     <td valign="top">remove pixels from the image interior</td>
 428   </tr>
 429
 430   <tr>
 431     <td valign="top"><a href="command-line-options.html#clip">-clip</a></td>
 432     <td valign="top">clip along the first path from the 8BIM profile</td>
 433   </tr>
 434
 435   <tr>
 436     <td valign="top"><a href="command-line-options.html#clamp">-clamp</a></td>
 437     <td valign="top">restrict colors from 0 to the quantum depth</td>
 438   </tr>
 439
 440   <tr>
 441     <td valign="top"><a href="command-line-options.html#clip-mask">-clip-mask</a> <em class="option">filename</em></td>
 442     <td valign="top">associate clip mask with the image</td>
 443   </tr>
 444
 445   <tr>
 446     <td valign="top"><a href="command-line-options.html#clip-path">-clip-path <em class="option">id</em></a></td>
 447     <td valign="top">clip along a named path from the 8BIM profile</td>
 448   </tr>
 449
 450   <tr>
 451     <td valign="top"><a href="command-line-options.html#clut">-clut</a></td>
 452     <td valign="top">apply a color lookup table to the image</td>
 453   </tr>
 454
 455   <tr>
 456     <td valign="top"><a href="command-line-options.html#contrast-stretch">-contrast-stretch <em class="option">geometry</em></a></td>
 457     <td valign="top">improve the contrast in an image by `stretching' the range of intensity value</td>
 458   </tr>
 459
 460   <tr>
 461     <td valign="top"><a href="command-line-options.html#coalesce">-coalesce</a></td>
 462     <td valign="top">merge a sequence of images</td>
 463   </tr>
 464
 465   <tr>
 466     <td valign="top"><a href="command-line-options.html#colorize">-colorize <em class="option">value</em></a></td>
 467     <td valign="top">colorize the image with the fill color</td>
 468   </tr>
 469
 470   <tr>
 471     <td valign="top"><a href="command-line-options.html#color-matrix">-color-matrix <em class="option">matrix</em></a></td>
 472     <td valign="top">apply color correction to the image.</td>
 473   </tr>
 474
 475   <tr>
 476     <td valign="top"><a href="command-line-options.html#colors">-colors <em class="option">value</em></a></td>
 477     <td valign="top">preferred number of colors in the image</td>
 478   </tr>
 479
 480   <tr>
 481     <td valign="top"><a href="command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
 482     <td valign="top">set image colorspace</td>
 483   </tr>
 484
 485   <tr>
 486     <td valign="top"><a href="command-line-options.html#combine">-combine</a></td>
 487     <td valign="top">combine a sequence of images</td>
 488   </tr>
 489
 490   <tr>
 491     <td valign="top"><a href="command-line-options.html#comment">-comment <em class="option">string</em></a></td>
 492     <td valign="top">annotate image with comment</td>
 493   </tr>
 494
 495   <tr>
 496     <td valign="top"><a href="command-line-options.html#compose">-compose <em class="option">operator</em></a></td>
 497     <td valign="top">set image composite operator</td>
 498   </tr>
 499
 500   <tr>
 501     <td valign="top"><a href="command-line-options.html#composite">-composite</a></td>
 502     <td valign="top">composite image</td>
 503   </tr>
 504
 505   <tr>
 506     <td valign="top"><a href="command-line-options.html#compress">-compress <em class="option">type</em></a></td>
 507     <td valign="top">image compression type</td>
 508   </tr>
 509
 510   <tr>
 511     <td valign="top"><a href="command-line-options.html#contrast">-contrast</a></td>
 512     <td valign="top">enhance or reduce the image contrast</td>
 513   </tr>
 514
 515   <tr>
 516     <td valign="top"><a href="command-line-options.html#convolve">-convolve <em class="option">coefficients</em></a></td>
 517     <td valign="top">apply a convolution kernel to the image</td>
 518   </tr>
 519
 520   <tr>
 521     <td valign="top"><a href="command-line-options.html#crop">-crop <em class="option">geometry</em></a></td>
 522     <td valign="top">crop the image</td>
 523   </tr>
 524
 525   <tr>
 526     <td valign="top"><a href="command-line-options.html#cycle">-cycle <em class="option">amount</em></a></td>
 527     <td valign="top">cycle the image colormap</td>
 528   </tr>
 529
 530   <tr>
 531     <td valign="top"><a href="command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
 532     <td valign="top">convert cipher pixels to plain</td>
 533   </tr>
 534
 535   <tr>
 536     <td valign="top"><a href="command-line-options.html#debug">-debug <em class="option">events</em></a></td>
 537     <td valign="top">display copious debugging information</td>
 538   </tr>
 539
 540   <tr>
 541     <td valign="top"><a href="command-line-options.html#define">-define <em class="option">format:option</em></a></td>
 542     <td valign="top">define one or more image format options</td>
 543   </tr>
 544
 545   <tr>
 546     <td valign="top"><a href="command-line-options.html#deconstruct">-deconstruct</a></td>
 547     <td valign="top">break down an image sequence into constituent parts</td>
 548   </tr>
 549
 550   <tr>
 551     <td valign="top"><a href="command-line-options.html#delay">-delay <em class="option">value</em></a></td>
 552     <td valign="top">display the next image after pausing</td>
 553   </tr>
 554
 555   <tr>
 556     <td valign="top"><a href="command-line-options.html#delete">-delete <em class="option">index</em></a></td>
 557     <td valign="top">delete the image from the image sequence</td>
 558   </tr>
 559
 560   <tr>
 561     <td valign="top"><a href="command-line-options.html#density">-density <em class="option">geometry</em></a></td>
 562     <td valign="top">horizontal and vertical density of the image</td>
 563   </tr>
 564
 565   <tr>
 566     <td valign="top"><a href="command-line-options.html#depth">-depth <em class="option">value</em></a></td>
 567     <td valign="top">image depth</td>
 568   </tr>
 569
 570   <tr>
 571     <td valign="top"><a href="command-line-options.html#despeckle">-despeckle</a></td>
 572     <td valign="top">reduce the speckles within an image</td>
 573   </tr>
 574
 575   <tr>
 576     <td valign="top"><a href="command-line-options.html#direction">-direction <em class="option">type</em></a></td>
 577     <td valign="top">render text right-to-left or left-to-right</td>
 578   </tr>
 579
 580   <tr>
 581     <td valign="top"><a href="command-line-options.html#display">-display <em class="option">server</em></a></td>
 582     <td valign="top">get image or font from this X server</td>
 583   </tr>
 584
 585   <tr>
 586     <td valign="top"><a href="command-line-options.html#dispose">-dispose <em class="option">method</em></a></td>
 587     <td valign="top">layer disposal method</td>
 588   </tr>
 589
 590   <tr>
 591     <td valign="top"><a href="command-line-options.html#distort">-distort <em class="option">type coefficients</em></a></td>
 592     <td valign="top">distort image</td>
 593   </tr>
 594
 595   <tr>
 596     <td valign="top"><a href="command-line-options.html#dither">-dither  <em class="option">method</em></a></td>
 597     <td valign="top">apply error diffusion to image</td>
 598   </tr>
 599
 600   <tr>
 601     <td valign="top"><a href="command-line-options.html#draw">-draw <em class="option">string</em></a></td>
 602     <td valign="top">annotate the image with a graphic primitive</td>
 603   </tr>
 604
 605   <tr>
 606     <td valign="top"><a href="command-line-options.html#duplicate">-duplicate <em class="option">count,indexes</em></a></td>
 607     <td valign="top">duplicate an image one or more times</td>
 608   </tr>
 609
 610   <tr>
 611     <td valign="top"><a href="command-line-options.html#edge">-edge <em class="option">radius</em></a></td>
 612     <td valign="top">apply a filter to detect edges in the image</td>
 613   </tr>
 614
 615   <tr>
 616     <td valign="top"><a href="command-line-options.html#emboss">-emboss <em class="option">radius</em></a></td>
 617     <td valign="top">emboss an image</td>
 618   </tr>
 619
 620   <tr>
 621     <td valign="top"><a href="command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td>
 622     <td valign="top">convert plain pixels to cipher pixels</td>
 623   </tr>
 624
 625   <tr>
 626     <td valign="top"><a href="command-line-options.html#encoding">-encoding <em class="option">type</em></a></td>
 627     <td valign="top">text encoding type</td>
 628   </tr>
 629
 630   <tr>
 631     <td valign="top"><a href="command-line-options.html#endian">-endian <em class="option">type</em></a></td>
 632     <td valign="top">endianness (MSB or LSB) of the image</td>
 633   </tr>
 634
 635   <tr>
 636     <td valign="top"><a href="command-line-options.html#enhance">-enhance</a></td>
 637     <td valign="top">apply a digital filter to enhance a noisy image</td>
 638   </tr>
 639
 640   <tr>
 641     <td valign="top"><a href="command-line-options.html#equalize">-equalize</a></td>
 642     <td valign="top">perform histogram equalization to an image</td>
 643   </tr>
 644
 645   <tr>
 646     <td valign="top"><a href="command-line-options.html#evaluate">-evaluate <em class="option">operator value</em></a></td>
 647     <td valign="top">evaluate an arithmetic, relational, or logical expression</td>
 648   </tr>
 649
 650   <tr>
 651     <td valign="top"><a href="command-line-options.html#evaluate-sequence">-evaluate-sequence <em class="option">operator</em></a></td>
 652     <td valign="top">evaluate an arithmetic, relational, or logical expression for an image sequence</td>
 653   </tr>
 654
 655   <tr>
 656     <td valign="top"><a href="command-line-options.html#extent">-extent <em class="option">geometry</em></a></td>
 657     <td valign="top">set the image size</td>
 658   </tr>
 659
 660   <tr>
 661     <td valign="top"><a href="command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
 662     <td valign="top">extract area from image</td>
 663   </tr>
 664
 665   <tr>
 666     <td valign="top"><a href="command-line-options.html#family">-family <em class="option">name</em></a></td>
 667     <td valign="top">render text with this font family</td>
 668   </tr>
 669
 670   <tr>
 671     <td valign="top"><a href="command-line-options.html#fft">-fft</a></td>
 672     <td valign="top">implements the discrete Fourier transform (DFT)</td>
 673   </tr>
 674
 675   <tr>
 676     <td valign="top"><a href="command-line-options.html#fill">-fill <em class="option">color</em></a></td>
 677     <td valign="top">color to use when filling a graphic primitive</td>
 678   </tr>
 679
 680   <tr>
 681     <td valign="top"><a href="command-line-options.html#filter">-filter <em class="option">type</em></a></td>
 682     <td valign="top">use this filter when resizing an image</td>
 683   </tr>
 684
 685   <tr>
 686     <td valign="top"><a href="command-line-options.html#flatten">-flatten</a></td>
 687     <td valign="top">flatten a sequence of images</td>
 688   </tr>
 689
 690   <tr>
 691     <td valign="top"><a href="command-line-options.html#flip">-flip</a></td>
 692     <td valign="top">flip image in the vertical direction</td>
 693   </tr>
 694
 695   <tr>
 696     <td valign="top"><a href="command-line-options.html#floodfill">-floodfill <em class="option">geometry color</em></a></td>
 697     <td valign="top">floodfill the image with color</td>
 698   </tr>
 699
 700   <tr>
 701     <td valign="top"><a href="command-line-options.html#flop">-flop</a></td>
 702     <td valign="top">flop image in the horizontal direction</td>
 703   </tr>
 704
 705   <tr>
 706     <td valign="top"><a href="command-line-options.html#font">-font <em class="option">name</em></a></td>
 707     <td valign="top">render text with this font</td>
 708   </tr>
 709
 710   <tr>
 711     <td valign="top"><a href="command-line-options.html#format">-format <em class="option">type</em></a></td>
 712     <td valign="top">output formatted image characteristics</td>
 713   </tr>
 714
 715   <tr>
 716     <td valign="top"><a href="command-line-options.html#frame">-frame <em class="option">geometry</em></a></td>
 717     <td valign="top">surround image with an ornamental border</td>
 718   </tr>
 719
 720   <tr>
 721     <td valign="top"><a href="command-line-options.html#function">-function <em class="option">name</em></a></td>
 722     <td valign="top">apply a function to the image</td>
 723   </tr>
 724
 725   <tr>
 726     <td valign="top"><a href="command-line-options.html#fuzz">-fuzz <em class="option">distance</em></a></td>
 727     <td valign="top">colors within this distance are considered equal</td>
 728   </tr>
 729
 730   <tr>
 731     <td valign="top"><a href="command-line-options.html#fx">-fx <em class="option">expression</em></a></td>
 732     <td valign="top">apply mathematical expression to an image channel(s)</td>
 733   </tr>
 734
 735   <tr>
 736     <td valign="top"><a href="command-line-options.html#gamma">-gamma <em class="option">value</em></a></td>
 737     <td valign="top">level of gamma correction</td>
 738   </tr>
 739
 740   <tr>
 741     <td valign="top"><a href="command-line-options.html#gaussian-blur">-gaussian-blur <em class="option">geometry</em></a></td>
 742     <td valign="top">reduce image noise and reduce detail levels</td>
 743   </tr>
 744
 745   <tr>
 746     <td valign="top"><a href="command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
 747     <td valign="top">preferred size or location of the image</td>
 748   </tr>
 749
 750   <tr>
 751     <td valign="top"><a href="command-line-options.html#gravity">-gravity <em class="option">type</em></a></td>
 752     <td valign="top">horizontal and vertical text placement</td>
 753   </tr>
 754
 755   <tr>
 756     <td valign="top"><a href="command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td>
 757     <td valign="top">chromaticity green primary point</td>
 758   </tr>
 759
 760   <tr>
 761     <td valign="top"><a href="command-line-options.html#help">-help</a></td>
 762     <td valign="top">print program options</td>
 763   </tr>
 764
 765   <tr>
 766     <td valign="top"><a href="command-line-options.html#identify">-identify</a></td>
 767     <td valign="top">identify the format and characteristics of the image</td>
 768   </tr>
 769
 770   <tr>
 771     <td valign="top"><a href="command-line-options.html#ift">-ifft</a></td>
 772     <td valign="top">implements the inverse discrete Fourier transform (DFT)</td>
 773   </tr>
 774
 775   <tr>
 776     <td valign="top"><a href="command-line-options.html#implode">-implode <em class="option">amount</em></a></td>
 777     <td valign="top">implode image pixels about the center</td>
 778   </tr>
 779
 780   <tr>
 781     <td valign="top"><a href="command-line-options.html#insert">-insert <em class="option">index</em></a></td>
 782     <td valign="top">insert last image into the image sequence</td>
 783   </tr>
 784
 785   <tr>
 786     <td valign="top"><a href="command-line-options.html#intent">-intent <em class="option">type</em></a></td>
 787     <td valign="top">type of rendering intent when managing the image color</td>
 788   </tr>
 789
 790   <tr>
 791     <td valign="top"><a href="command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
 792     <td valign="top">type of image interlacing scheme</td>
 793   </tr>
 794
 795   <tr>
 796     <td valign="top"><a href="command-line-options.html#interline-spacing">-interline-spacing <em class="option">value</em></a></td>
 797     <td valign="top">the space between two text lines</td>
 798   </tr>
 799
 800   <tr>
 801     <td valign="top"><a href="command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
 802     <td valign="top">pixel color interpolation method</td>
 803   </tr>
 804
 805   <tr>
 806     <td valign="top"><a href="command-line-options.html#interword-spacing">-interword-spacing <em class="option">value</em></a></td>
 807     <td valign="top">the space between two words</td>
 808   </tr>
 809
 810   <tr>
 811     <td valign="top"><a href="command-line-options.html#kerning">-kerning <em class="option">value</em></a></td>
 812     <td valign="top">the space between two characters</td>
 813   </tr>
 814
 815   <tr>
 816     <td valign="top"><a href="command-line-options.html#label">-label <em class="option">string</em></a></td>
 817     <td valign="top">assign a label to an image</td>
 818   </tr>
 819
 820   <tr>
 821     <td valign="top"><a href="command-line-options.html#lat">-lat <em class="option">geometry</em></a></td>
 822     <td valign="top">local adaptive thresholding</td>
 823   </tr>
 824
 825   <tr>
 826     <td valign="top"><a href="command-line-options.html#layers">-layers <em class="option">method</em></a></td>
 827     <td valign="top">optimize or compare image layers</td>
 828   </tr>
 829
 830   <tr>
 831     <td valign="top"><a href="command-line-options.html#level">-level <em class="option">value</em></a></td>
 832     <td valign="top">adjust the level of image contrast</td>
 833   </tr>
 834
 835   <tr>
 836     <td valign="top"><a href="command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
 837     <td valign="top">pixel cache resource limit</td>
 838   </tr>
 839
 840   <tr>
 841     <td valign="top"><a href="command-line-options.html#linear-stretch">-linear-stretch <em class="option">geometry</em></a></td>
 842     <td valign="top">linear with saturation histogram stretch</td>
 843   </tr>
 844
 845   <tr>
 846     <td valign="top"><a href="command-line-options.html#liquid-rescale">-liquid-rescale <em class="option">geometry</em></a></td>
 847     <td valign="top">rescale image with seam-carving</td>
 848   </tr>
 849
 850   <tr>
 851     <td valign="top"><a href="command-line-options.html#log">-log <em class="option">format</em></a></td>
 852     <td valign="top">format of debugging information</td>
 853   </tr>
 854
 855   <tr>
 856     <td valign="top"><a href="command-line-options.html#loop">-loop <em class="option">iterations</em></a></td>
 857     <td valign="top">add Netscape loop extension to your GIF animation</td>
 858   </tr>
 859
 860   <tr>
 861     <td valign="top"><a href="command-line-options.html#mask">-mask <em class="option">filename</em></a></td>
 862     <td valign="top">associate a mask with the image</td>
 863   </tr>
 864
 865   <tr>
 866     <td valign="top"><a href="command-line-options.html#mattecolor">-mattecolor <em class="option">color</em></a></td>
 867     <td valign="top">frame color</td>
 868   </tr>
 869
 870   <tr>
 871     <td valign="top"><a href="command-line-options.html#median">-median <em class="option">radius</em></a></td>
 872     <td valign="top">apply a median filter to the image</td>
 873   </tr>
 874
 875   <tr>
 876     <td valign="top"><a href="command-line-options.html#mode">-mode <em class="option">radius</em></a></td>
 877     <td valign="top">make each pixel the 'predominant color' of the neighborhood</td>
 878   </tr>
 879
 880   <tr>
 881     <td valign="top"><a href="command-line-options.html#modulate">-modulate <em class="option">value</em></a></td>
 882     <td valign="top">vary the brightness, saturation, and hue</td>
 883   </tr>
 884
 885   <tr>
 886     <td valign="top"><a href="command-line-options.html#monitor">-monitor</a></td>
 887     <td valign="top">monitor progress</td>
 888   </tr>
 889
 890   <tr>
 891     <td valign="top"><a href="command-line-options.html#monochrome">-monochrome</a></td>
 892     <td valign="top">transform image to black and white</td>
 893   </tr>
 894
 895   <tr>
 896     <td valign="top"><a href="command-line-options.html#morph">-morph <em class="option">value</em></a></td>
 897     <td valign="top">morph an image sequence</td>
 898   </tr>
 899
 900   <tr>
 901     <td valign="top"><a href="command-line-options.html#morphology">-morphology <em class="option">method</em></a> <em class="option">kernel</em></td>
 902     <td valign="top">apply a morphology method to the image</td>
 903   </tr>
 904
 905   <tr>
 906     <td valign="top"><a href="command-line-options.html#motion-blur">-motion-blur <em class="option">geometry</em></a></td>
 907     <td valign="top">simulate motion blur</td>
 908   </tr>
 909
 910   <tr>
 911     <td valign="top"><a href="command-line-options.html#negate">-negate</a></td>
 912     <td valign="top">replace each pixel with its complementary color </td>
 913   </tr>
 914
 915   <tr>
 916     <td valign="top"><a href="command-line-options.html#noise">-noise <em class="option">radius</em></a></td>
 917     <td valign="top">add or reduce noise in an image</td>
 918   </tr>
 919
 920   <tr>
 921     <td valign="top"><a href="command-line-options.html#normalize">-normalize</a></td>
 922     <td valign="top">transform image to span the full range of colors</td>
 923   </tr>
 924
 925   <tr>
 926     <td valign="top"><a href="command-line-options.html#opaque">-opaque <em class="option">color</em></a></td>
 927     <td valign="top">change this color to the fill color</td>
 928   </tr>
 929
 930   <tr>
 931     <td valign="top"><a href="command-line-options.html#ordered-dither">-ordered-dither <em class="option">NxN</em></a></td>
 932     <td valign="top">ordered dither the image</td>
 933   </tr>
 934
 935   <tr>
 936     <td valign="top"><a href="command-line-options.html#orient">-orient <em class="option">type</em></a></td>
 937     <td valign="top">image orientation</td>
 938   </tr>
 939
 940   <tr>
 941     <td valign="top"><a href="command-line-options.html#page">-page <em class="option">geometry</em></a></td>
 942     <td valign="top">size and location of an image canvas (setting)</td>
 943   </tr>
 944
 945   <tr>
 946     <td valign="top"><a href="command-line-options.html#paint">-paint <em class="option">radius</em></a></td>
 947     <td valign="top">simulate an oil painting</td>
 948   </tr>
 949
 950   <tr>
 951     <td valign="top"><a href="command-line-options.html#ping">-ping</a></td>
 952     <td valign="top">efficiently determine image attributes</td>
 953   </tr>
 954
 955   <tr>
 956     <td valign="top"><a href="command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td>
 957     <td valign="top">font point size</td>
 958   </tr>
 959
 960   <tr>
 961     <td valign="top"><a href="command-line-options.html#polaroid">-polaroid <em class="option">angle</em></a></td>
 962     <td valign="top">simulate a Polaroid picture</td>
 963   </tr>
 964
 965   <tr>
 966     <td valign="top"><a href="command-line-options.html#posterize">-posterize <em class="option">levels</em></a></td>
 967     <td valign="top">reduce the image to a limited number of color levels</td>
 968   </tr>
 969
 970   <tr>
 971     <td valign="top"><a href="command-line-options.html#precision">-precision <em class="option">value</em></a></td>
 972     <td valign="top">set the maximum number of significant digits to be printed</td>
 973   </tr>
 974
 975   <tr>
 976     <td valign="top"><a href="command-line-options.html#preview">-preview <em class="option">type</em></a></td>
 977     <td valign="top">image preview type</td>
 978   </tr>
 979
 980   <tr>
 981     <td valign="top"><a href="command-line-options.html#print">-print <em class="option">string</em></a></td>
 982     <td valign="top">interpret string and print to console</td>
 983   </tr>
 984
 985   <tr>
 986     <td valign="top"><a href="command-line-options.html#process">-process <em class="option">image-filter</em></a></td>
 987     <td valign="top">process the image with a custom image filter</td>
 988   </tr>
 989
 990   <tr>
 991     <td valign="top"><a href="command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
 992     <td valign="top">add, delete, or apply an image profile</td>
 993   </tr>
 994
 995   <tr>
 996     <td valign="top"><a href="command-line-options.html#quality">-quality <em class="option">value</em></a></td>
 997     <td valign="top">JPEG/MIFF/PNG compression level</td>
 998   </tr>
 999
1000   <tr>
1001     <td valign="top"><a href="command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
1002     <td valign="top">reduce image colors in this colorspace</td>
1003   </tr>
1004
1005   <tr>
1006     <td valign="top"><a href="command-line-options.html#quiet">-quiet</a></td>
1007     <td valign="top">suppress all warning messages</td>
1008   </tr>
1009
1010   <tr>
1011     <td valign="top"><a href="command-line-options.html#radial-blur">-radial-blur <em class="option">angle</em></a></td>
1012     <td valign="top">radial blur the image</td>
1013   </tr>
1014
1015   <tr>
1016     <td valign="top"><a href="command-line-options.html#raise">-raise <em class="option">value</em></a></td>
1017     <td valign="top">lighten/darken image edges to create a 3-D effect</td>
1018   </tr>
1019
1020   <tr>
1021     <td valign="top"><a href="command-line-options.html#random-threshold">-random-threshold <em class="option">low,high</em></a></td>
1022     <td valign="top">random threshold the image</td>
1023   </tr>
1024
1025   <tr>
1026     <td valign="top"><a href="command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td>
1027     <td valign="top">chromaticity red primary point</td>
1028   </tr>
1029
1030   <tr>
1031     <td valign="top"><a href="command-line-options.html#regard-warnings">-regard-warnings</a></td>
1032     <td valign="top">pay attention to warning messages.</td>
1033   </tr>
1034
1035   <tr>
1036     <td valign="top"><a href="command-line-options.html#region">-region <em class="option">geometry</em></a></td>
1037     <td valign="top">apply options to a portion of the image</td>
1038   </tr>
1039
1040   <tr>
1041     <td valign="top"><a href="command-line-options.html#remap">-remap <em class="option">filename</em></a></td>
1042     <td valign="top">transform image colors to match this set of colors</td>
1043   </tr>
1044
1045   <tr>
1046     <td valign="top"><a href="command-line-options.html#render">-render</a></td>
1047     <td valign="top">render vector graphics</td>
1048   </tr>
1049
1050   <tr>
1051     <td valign="top"><a href="command-line-options.html#repage">-repage <em class="option">geometry</em></a></td>
1052     <td valign="top">size and location of an image canvas</td>
1053   </tr>
1054
1055   <tr>
1056     <td valign="top"><a href="command-line-options.html#resample">-resample <em class="option">geometry</em></a></td>
1057     <td valign="top">change the resolution of an image</td>
1058   </tr>
1059
1060   <tr>
1061     <td valign="top"><a href="command-line-options.html#resize">-resize <em class="option">geometry</em></a></td>
1062     <td valign="top">resize the image</td>
1063   </tr>
1064
1065   <tr>
1066     <td valign="top"><a href="command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
1067     <td valign="top">settings remain in effect until parenthesis boundary.</td>
1068   </tr>
1069
1070   <tr>
1071     <td valign="top"><a href="command-line-options.html#roll">-roll <em class="option">geometry</em></a></td>
1072     <td valign="top">roll an image vertically or horizontally</td>
1073   </tr>
1074
1075   <tr>
1076     <td valign="top"><a href="command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
1077     <td valign="top">apply Paeth rotation to the image</td>
1078   </tr>
1079
1080   <tr>
1081     <td valign="top"><a href="command-line-options.html#sample">-sample <em class="option">geometry</em></a></td>
1082     <td valign="top">scale image with pixel sampling</td>
1083   </tr>
1084
1085   <tr>
1086     <td valign="top"><a href="command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
1087     <td valign="top">horizontal and vertical sampling factor</td>
1088   </tr>
1089
1090   <tr>
1091     <td valign="top"><a href="command-line-options.html#scale">-scale <em class="option">geometry</em></a></td>
1092     <td valign="top">scale the image</td>
1093   </tr>
1094
1095   <tr>
1096     <td valign="top"><a href="command-line-options.html#scene">-scene <em class="option">value</em></a></td>
1097     <td valign="top">image scene number</td>
1098   </tr>
1099
1100   <tr>
1101     <td valign="top"><a href="command-line-options.html#seed">-seed <em class="option">value</em></a></td>
1102     <td valign="top">seed a new sequence of pseudo-random numbers</td>
1103   </tr>
1104
1105   <tr>
1106     <td valign="top"><a href="command-line-options.html#segment">-segment <em class="option">values</em></a></td>
1107     <td valign="top">segment an image</td>
1108   </tr>
1109
1110   <tr>
1111     <td valign="top"><a href="command-line-options.html#threshold">-selective-blur <em class="option">geometry</em></a></td>
1112     <td valign="top">selectively blur pixels within a contrast threshold</td>
1113   </tr>
1114
1115   <tr>
1116     <td valign="top"><a href="command-line-options.html#separate">-separate</a></td>
1117     <td valign="top">separate an image channel into a grayscale image</td>
1118   </tr>
1119
1120   <tr>
1121     <td valign="top"><a href="command-line-options.html#sepia-tone">-sepia-tone <em class="option">threshold</em></a></td>
1122     <td valign="top">simulate a sepia-toned photo</td>
1123   </tr>
1124
1125   <tr>
1126     <td valign="top"><a href="command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
1127     <td valign="top">set an image attribute</td>
1128   </tr>
1129
1130   <tr>
1131     <td valign="top"><a href="command-line-options.html#shade">-shade <em class="option">degrees</em></a></td>
1132     <td valign="top">shade the image using a distant light source</td>
1133   </tr>
1134
1135   <tr>
1136     <td valign="top"><a href="command-line-options.html#shadow">-shadow <em class="option">geometry</em></a></td>
1137     <td valign="top">simulate an image shadow</td>
1138   </tr>
1139
1140   <tr>
1141     <td valign="top"><a href="command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
1142     <td valign="top">sharpen the image</td>
1143   </tr>
1144
1145   <tr>
1146     <td valign="top"><a href="command-line-options.html#shave">-shave <em class="option">geometry</em></a></td>
1147     <td valign="top">shave pixels from the image edges</td>
1148   </tr>
1149
1150   <tr>
1151     <td valign="top"><a href="command-line-options.html#shear">-shear <em class="option">geometry</em></a></td>
1152     <td valign="top">slide one edge of the image along the X or Y axis</td>
1153   </tr>
1154
1155   <tr>
1156     <td valign="top"><a href="command-line-options.html#sigmoidal">-sigmoidal-contrast <em class="option">geometry</em></a></td>
1157     <td valign="top">increase the contrast without saturating highlights or shadows</td>
1158   </tr>
1159
1160   <tr>
1161     <td valign="top"><a href="command-line-options.html#size">-size <em class="option">geometry</em></a></td>
1162     <td valign="top">width and height of image</td>
1163   </tr>
1164
1165   <tr>
1166     <td valign="top"><a href="command-line-options.html#sketch">-sketch <em class="option">geometry</em></a></td>
1167     <td valign="top">simulate a pencil sketch</td>
1168   </tr>
1169
1170   <tr>
1171     <td valign="top"><a href="command-line-options.html#smush">-smush <em class="option">offset</em></a></td>
1172     <td valign="top">smush an image sequence together</td>
1173   </tr>
1174
1175   <tr>
1176     <td valign="top"><a href="command-line-options.html#solarize">-solarize <em class="option">threshold</em></a></td>
1177     <td valign="top">negate all pixels above the threshold level</td>
1178   </tr>
1179
1180   <tr>
1181     <td valign="top"><a href="command-line-options.html#splice">-splice <em class="option">geometry</em></a></td>
1182     <td valign="top">splice the background color into the image</td>
1183   </tr>
1184
1185   <tr>
1186     <td valign="top"><a href="command-line-options.html#spread">-spread <em class="option">radius</em></a></td>
1187     <td valign="top">displace image pixels by a random amount</td>
1188   </tr>
1189
1190   <tr>
1191     <td valign="top"><a href="command-line-options.html#statistic">-statistic <em class="option">type</em> <em class="option">geometry</em></a></td>
1192     <td valign="top">replace each pixel with corresponding statistic from the neighborhood</td>
1193   </tr>
1194
1195   <tr>
1196     <td valign="top"><a href="command-line-options.html#strip">-strip</a></td>
1197     <td valign="top">strip image of all profiles and comments</td>
1198   </tr>
1199
1200   <tr>
1201     <td valign="top"><a href="command-line-options.html#stroke">-stroke <em class="option">color</em></a></td>
1202     <td valign="top">graphic primitive stroke color</td>
1203   </tr>
1204
1205   <tr>
1206     <td valign="top"><a href="command-line-options.html#strokewidth">-strokewidth <em class="option">value</em></a></td>
1207     <td valign="top">graphic primitive stroke width</td>
1208   </tr>
1209
1210   <tr>
1211     <td valign="top"><a href="command-line-options.html#stretch">-stretch <em class="option">type</em></a></td>
1212     <td valign="top">render text with this font stretch</td>
1213   </tr>
1214
1215   <tr>
1216     <td valign="top"><a href="command-line-options.html#style">-style <em class="option">type</em></a></td>
1217     <td valign="top">render text with this font style</td>
1218   </tr>
1219
1220   <tr>
1221     <td valign="top"><a href="command-line-options.html#swap">-swap <em class="option">indexes</em></a></td>
1222     <td valign="top">swap two images in the image sequence</td>
1223   </tr>
1224
1225   <tr>
1226     <td valign="top"><a href="command-line-options.html#swirl">-swirl <em class="option">degrees</em></a></td>
1227     <td valign="top">swirl image pixels about the center</td>
1228   </tr>
1229
1230   <tr>
1231     <td valign="top"><a href="command-line-options.html#synchronize">-synchronize</a></td>
1232     <td valign="top">synchronize image to storage device</td>
1233   </tr>
1234
1235   <tr>
1236     <td valign="top"><a href="command-line-options.html#texture">-texture <em class="option">filename</em></a></td>
1237     <td valign="top">name of texture to tile onto the image background</td>
1238   </tr>
1239
1240   <tr>
1241     <td valign="top"><a href="command-line-options.html#threshold">-threshold <em class="option">value</em></a></td>
1242     <td valign="top">threshold the image</td>
1243   </tr>
1244
1245   <tr>
1246     <td valign="top"><a href="command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td>
1247     <td valign="top">create a thumbnail of the image</td>
1248   </tr>
1249
1250   <tr>
1251     <td valign="top"><a href="command-line-options.html#tile">-tile <em class="option">filename</em></a></td>
1252     <td valign="top">tile image when filling a graphic primitive</td>
1253   </tr>
1254
1255   <tr>
1256     <td valign="top"><a href="command-line-options.html#tile-offset">-tile-offset <em class="option">geometry</em></a></td>
1257     <td valign="top">set the image tile offset</td>
1258   </tr>
1259
1260   <tr>
1261     <td valign="top"><a href="command-line-options.html#tint">-tint <em class="option">value</em></a></td>
1262     <td valign="top">tint the image with the fill color</td>
1263   </tr>
1264
1265   <tr>
1266     <td valign="top"><a href="command-line-options.html#transform">-transform</a></td>
1267     <td valign="top">affine transform image</td>
1268   </tr>
1269
1270   <tr>
1271     <td valign="top"><a href="command-line-options.html#transparent">-transparent <em class="option">color</em></a></td>
1272     <td valign="top">make this color transparent within the image</td>
1273   </tr>
1274
1275   <tr>
1276     <td valign="top"><a href="command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
1277     <td valign="top">transparent color</td>
1278   </tr>
1279
1280   <tr>
1281     <td valign="top"><a href="command-line-options.html#transpose">-transpose</a></td>
1282     <td valign="top">flip image in the vertical direction and rotate 90 degrees</td>
1283   </tr>
1284
1285   <tr>
1286     <td valign="top"><a href="command-line-options.html#transverse">-transverse</a></td>
1287     <td valign="top">flop image in the horizontal direction and rotate 270 degrees</td>
1288   </tr>
1289
1290   <tr>
1291     <td valign="top"><a href="command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td>
1292     <td valign="top">color tree depth</td>
1293   </tr>
1294
1295   <tr>
1296     <td valign="top"><a href="command-line-options.html#trim">-trim</a></td>
1297     <td valign="top">trim image edges</td>
1298   </tr>
1299
1300   <tr>
1301     <td valign="top"><a href="command-line-options.html#type">-type <em class="option">type</em></a></td>
1302     <td valign="top">image type</td>
1303   </tr>
1304
1305   <tr>
1306     <td valign="top"><a href="command-line-options.html#undercolor">-undercolor <em class="option">color</em></a></td>
1307     <td valign="top">annotation bounding box color</td>
1308   </tr>
1309
1310   <tr>
1311     <td valign="top"><a href="command-line-options.html#unique-colors">-unique-colors</a></td>
1312     <td valign="top">discard all but one of any pixel color.</td>
1313   </tr>
1314
1315   <tr>
1316     <td valign="top"><a href="command-line-options.html#units">-units <em class="option">type</em></a></td>
1317     <td valign="top">the units of image resolution</td>
1318   </tr>
1319
1320   <tr>
1321     <td valign="top"><a href="command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td>
1322     <td valign="top">sharpen the image</td>
1323   </tr>
1324
1325   <tr>
1326     <td valign="top"><a href="command-line-options.html#verbose">-verbose</a></td>
1327     <td valign="top">print detailed information about the image</td>
1328   </tr>
1329
1330   <tr>
1331     <td valign="top"><a href="command-line-options.html#version">-version</a></td>
1332     <td valign="top">print version information</td>
1333   </tr>
1334
1335   <tr>
1336     <td valign="top"><a href="command-line-options.html#view">-view</a></td>
1337     <td valign="top">FlashPix viewing transforms</td>
1338   </tr>
1339
1340   <tr>
1341     <td valign="top"><a href="command-line-options.html#vignette">-vignette <em class="option">geometry</em></a></td>
1342     <td valign="top">soften the edges of the image in vignette style</td>
1343   </tr>
1344
1345   <tr>
1346     <td valign="top"><a href="command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
1347     <td valign="top">access method for pixels outside the boundaries of the image</td>
1348   </tr>
1349
1350   <tr>
1351     <td valign="top"><a href="command-line-options.html#wave">-wave <em class="option">geometry</em></a></td>
1352     <td valign="top">alter an image along a sine wave</td>
1353   </tr>
1354
1355   <tr>
1356     <td valign="top"><a href="command-line-options.html#weight">-weight <em class="option">type</em></a></td>
1357     <td valign="top">render text with this font weight</td>
1358   </tr>
1359
1360   <tr>
1361     <td valign="top"><a href="command-line-options.html#white-point">-white-point <em class="option">point</em></a></td>
1362     <td valign="top">chromaticity white point</td>
1363   </tr>
1364
1365   <tr>
1366     <td valign="top"><a href="command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td>
1367     <td valign="top">force all pixels above the threshold into white</td>
1368   </tr>
1369
1370   <tr>
1371     <td valign="top"><a href="command-line-options.html#write">-write <em class="option">filename</em></a></td>
1372     <td valign="top">write images to this file</td>
1373   </tr>
1374
1375   </tbody>
1376 </table>
1377
1378 </div>
1379
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