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 196 \r
 197 <h1>ImageMagick Mogrify Command-line Tool</h1>
 198 <p class="navigation-index">[<a href="#usage">Example Usage</a> &bull; <a href="#options">Option Summary</a>]</p>
 199
 200 <div class="doc-section">
 201 <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="../www/convert.html">convert</a> except that the original image file is overwritten (unless you change the file suffix with the <a href="../www/command-line-options.html#format">-format</a> option) with any changes you request.  See <a href="../www/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>
 202 </div>
 203
 204 <h2><a id="usage"></a>Example Usage</h2>
 205 <div class="doc-section">
 206
 207 <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
 208 rose:</p>
 209
 210 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>mogrify -resize 50% rose.jpg</span></p>
 211 <p class="image">
 212   <a href="../images/rose.jpg">
 213   <img src="../images/rose.jpg" width="70" height="46" alt="rose" />
 214   </a>
 215   <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" />
 216   <a href="../images/rose.png">
 217   <img style="margin-top:12px; margin-bottom: 11px;" src="../images/rose.png" width="35" height="23" alt="rose" />
 218   </a>
 219 </p>
 220
 221 <p>You can resize all your JPEG images in a folder to a maximum dimension of 256x256 with this command:</p>
 222
 223 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>mogrify -resize 256x256 *.jpg</span></p>
 224 <p>Finally, we convert all our PNG images to the JPEG format:</p>
 225
 226 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>mogrify -format jpg *.png</span></p>
 227 <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>
 228
 229
 230 <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>
 231
 232 </div>
 233
 234 <h2><a id="options"></a>Option Summary</h2>
 235 <div class="doc-section">
 236
 237 <p>The <kbd>mogrify</kbd> command recognizes these options.  Click on an option to get more details about how that option works.</p>
 238
 239 <table class="doc">
 240   <tbody>
 241   <tr>
 242     <th align="left">Option</th>
 243     <th align="left">Description</th>
 244   </tr>
 245
 246   <tr>
 247     <td valign="top"><a href="../www/command-line-options.html#adaptive-blur">-adaptive-blur <em class="option">geometry</em></a></td>
 248     <td valign="top">adaptively blur pixels; decrease effect near edges</td>
 249   </tr>
 250
 251   <tr>
 252     <td valign="top"><a href="../www/command-line-options.html#adaptive-resize">-adaptive-resize <em class="option">geometry</em></a></td>
 253     <td valign="top">adaptively resize image with data dependent triangulation.</td>
 254   </tr>
 255
 256   <tr>
 257     <td valign="top"><a href="../www/command-line-options.html#adaptive-sharpen">-adaptive-sharpen <em class="option">geometry</em></a></td>
 258     <td valign="top">adaptively sharpen pixels; increase effect near edges</td>
 259   </tr>
 260
 261   <tr>
 262     <td valign="top"><a href="../www/command-line-options.html#adjoin">-adjoin</a></td>
 263     <td valign="top">join images into a single multi-image file</td>
 264   </tr>
 265
 266   <tr>
 267     <td valign="top"><a href="../www/command-line-options.html#affine">-affine <em class="option">matrix</em></a></td>
 268     <td valign="top">affine transform matrix</td>
 269   </tr>
 270
 271   <tr>
 272     <td valign="top"><a href="../www/command-line-options.html#alpha">-alpha</a></td>
 273     <td valign="top">on, activate, off, deactivate, set, opaque, copy",
 274 transparent, extract, background, or shape the alpha channel</td>
 275   </tr>
 276
 277   <tr>
 278     <td valign="top"><a href="../www/command-line-options.html#annotate">-annotate <em class="option">geometry text</em></a></td>
 279     <td valign="top">annotate the image with text</td>
 280   </tr>
 281
 282   <tr>
 283     <td valign="top"><a href="../www/command-line-options.html#antialias">-antialias</a></td>
 284     <td valign="top">remove pixel-aliasing</td>
 285   </tr>
 286
 287   <tr>
 288     <td valign="top"><a href="../www/command-line-options.html#append">-append</a></td>
 289     <td valign="top">append an image sequence</td>
 290   </tr>
 291
 292   <tr>
 293     <td valign="top"><a href="../www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
 294     <td valign="top">decipher image with this password</td>
 295   </tr>
 296
 297   <tr>
 298     <td valign="top"><a href="../www/command-line-options.html#auto-gamma">-auto-gamma</a></td>
 299     <td valign="top">automagically adjust gamma level of image</td>
 300   </tr>
 301
 302   <tr>
 303     <td valign="top"><a href="../www/command-line-options.html#auto-level">-auto-level</a></td>
 304     <td valign="top">automagically adjust color levels of image</td>
 305   </tr>
 306
 307   <tr>
 308     <td valign="top"><a href="../www/command-line-options.html#auto-orient">-auto-orient</a></td>
 309     <td valign="top">automagically orient image</td>
 310   </tr>
 311
 312   <tr>
 313     <td valign="top"><a href="../www/command-line-options.html#background">-background <em class="option">color</em></a></td>
 314     <td valign="top">background color</td>
 315   </tr>
 316
 317   <tr>
 318     <td valign="top"><a href="../www/command-line-options.html#bench">-bench <em class="option">iterations</em></a></td>
 319     <td valign="top">measure performance</td>
 320   </tr>
 321
 322   <tr>
 323     <td valign="top"><a href="../www/command-line-options.html#bias">-bias <em class="option">value</em></a></td>
 324     <td valign="top">add bias when convolving an image</td>
 325   </tr>
 326
 327   <tr>
 328     <td valign="top"><a href="../www/command-line-options.html#black-threshold">-black-threshold <em class="option">value</em></a></td>
 329     <td valign="top">force all pixels below the threshold into black</td>
 330   </tr>
 331
 332   <tr>
 333     <td valign="top"><a href="../www/command-line-options.html#blue-primary">-blue-primary <em class="option">point</em></a></td>
 334     <td valign="top">chromaticity blue primary point</td>
 335   </tr>
 336
 337   <tr>
 338     <td valign="top"><a href="../www/command-line-options.html#blue-shift">-blue-shift  <em class="option">factor</em></a></td>
 339     <td valign="top">simulate a scene at nighttime in the moonlight</td>
 340   </tr>
 341
 342   <tr>
 343     <td valign="top"><a href="../www/command-line-options.html#blur">-blur <em class="option">geometry</em></a></td>
 344     <td valign="top">reduce image noise and reduce detail levels</td>
 345   </tr>
 346
 347   <tr>
 348     <td valign="top"><a href="../www/command-line-options.html#border">-border <em class="option">geometry</em></a></td>
 349     <td valign="top">surround image with a border of color</td>
 350   </tr>
 351
 352   <tr>
 353     <td valign="top"><a href="../www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
 354     <td valign="top">border color</td>
 355   </tr>
 356
 357   <tr>
 358     <td valign="top"><a href="../www/command-line-options.html#brightness-contrast">-brightness-contrast <em class="option">geometry</em></a></td>
 359     <td valign="top">improve brightness / contrast of the image</td>
 360   </tr>
 361
 362   <tr>
 363     <td valign="top"><a href="../www/command-line-options.html#caption">-caption <em class="option">string</em></a></td>
 364     <td valign="top">assign a caption to an image</td>
 365   </tr>
 366
 367   <tr>
 368     <td valign="top"><a href="../www/command-line-options.html#cdl">-cdl <em class="option">filename</em></a></td>
 369     <td valign="top">color correct with a color decision list</td>
 370   </tr>
 371
 372   <tr>
 373     <td valign="top"><a href="../www/command-line-options.html#channel">-channel <em class="option">type</em></a></td>
 374     <td valign="top">apply option to select image channels</td>
 375   </tr>
 376
 377   <tr>
 378     <td valign="top"><a href="../www/command-line-options.html#charcoal">-charcoal <em class="option">radius</em></a></td>
 379     <td valign="top">simulate a charcoal drawing</td>
 380   </tr>
 381
 382   <tr>
 383     <td valign="top"><a href="../www/command-line-options.html#chop">-chop <em class="option">geometry</em></a></td>
 384     <td valign="top">remove pixels from the image interior</td>
 385   </tr>
 386
 387   <tr>
 388     <td valign="top"><a href="../www/command-line-options.html#clip">-clip</a></td>
 389     <td valign="top">clip along the first path from the 8BIM profile</td>
 390   </tr>
 391
 392   <tr>
 393     <td valign="top"><a href="../www/command-line-options.html#clamp">-clamp</a></td>
 394     <td valign="top">restrict colors from 0 to the quantum depth</td>
 395   </tr>
 396
 397   <tr>
 398     <td valign="top"><a href="../www/command-line-options.html#clip-mask">-clip-mask</a> <em class="option">filename</em></td>
 399     <td valign="top">associate clip mask with the image</td>
 400   </tr>
 401
 402   <tr>
 403     <td valign="top"><a href="../www/command-line-options.html#clip-path">-clip-path <em class="option">id</em></a></td>
 404     <td valign="top">clip along a named path from the 8BIM profile</td>
 405   </tr>
 406
 407   <tr>
 408     <td valign="top"><a href="../www/command-line-options.html#clone">-clone <em class="option">index</em></a></td>
 409     <td valign="top">clone an image</td>
 410   </tr>
 411
 412   <tr>
 413     <td valign="top"><a href="../www/command-line-options.html#clut">-clut</a></td>
 414     <td valign="top">apply a color lookup table to the image</td>
 415   </tr>
 416
 417   <tr>
 418     <td valign="top"><a href="../www/command-line-options.html#contrast-stretch">-contrast-stretch <em class="option">geometry</em></a></td>
 419     <td valign="top">improve the contrast in an image by `stretching' the range of intensity value</td>
 420   </tr>
 421
 422   <tr>
 423     <td valign="top"><a href="../www/command-line-options.html#coalesce">-coalesce</a></td>
 424     <td valign="top">merge a sequence of images</td>
 425   </tr>
 426
 427   <tr>
 428     <td valign="top"><a href="../www/command-line-options.html#colorize">-colorize <em class="option">value</em></a></td>
 429     <td valign="top">colorize the image with the fill color</td>
 430   </tr>
 431
 432   <tr>
 433     <td valign="top"><a href="../www/command-line-options.html#color-matrix">-color-matrix <em class="option">matrix</em></a></td>
 434     <td valign="top">apply color correction to the image.</td>
 435   </tr>
 436
 437   <tr>
 438     <td valign="top"><a href="../www/command-line-options.html#colors">-colors <em class="option">value</em></a></td>
 439     <td valign="top">preferred number of colors in the image</td>
 440   </tr>
 441
 442   <tr>
 443     <td valign="top"><a href="../www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
 444     <td valign="top">set image colorspace</td>
 445   </tr>
 446
 447   <tr>
 448     <td valign="top"><a href="../www/command-line-options.html#combine">-combine</a></td>
 449     <td valign="top">combine a sequence of images</td>
 450   </tr>
 451
 452   <tr>
 453     <td valign="top"><a href="../www/command-line-options.html#comment">-comment <em class="option">string</em></a></td>
 454     <td valign="top">annotate image with comment</td>
 455   </tr>
 456
 457   <tr>
 458     <td valign="top"><a href="../www/command-line-options.html#compose">-compose <em class="option">operator</em></a></td>
 459     <td valign="top">set image composite operator</td>
 460   </tr>
 461
 462   <tr>
 463     <td valign="top"><a href="../www/command-line-options.html#composite">-composite</a></td>
 464     <td valign="top">composite image</td>
 465   </tr>
 466
 467   <tr>
 468     <td valign="top"><a href="../www/command-line-options.html#compress">-compress <em class="option">type</em></a></td>
 469     <td valign="top">image compression type</td>
 470   </tr>
 471
 472   <tr>
 473     <td valign="top"><a href="../www/command-line-options.html#contrast">-contrast</a></td>
 474     <td valign="top">enhance or reduce the image contrast</td>
 475   </tr>
 476
 477   <tr>
 478     <td valign="top"><a href="../www/command-line-options.html#convolve">-convolve <em class="option">coefficients</em></a></td>
 479     <td valign="top">apply a convolution kernel to the image</td>
 480   </tr>
 481
 482   <tr>
 483     <td valign="top"><a href="../www/command-line-options.html#crop">-crop <em class="option">geometry</em></a></td>
 484     <td valign="top">crop the image</td>
 485   </tr>
 486
 487   <tr>
 488     <td valign="top"><a href="../www/command-line-options.html#cycle">-cycle <em class="option">amount</em></a></td>
 489     <td valign="top">cycle the image colormap</td>
 490   </tr>
 491
 492   <tr>
 493     <td valign="top"><a href="../www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
 494     <td valign="top">convert cipher pixels to plain</td>
 495   </tr>
 496
 497   <tr>
 498     <td valign="top"><a href="../www/command-line-options.html#debug">-debug <em class="option">events</em></a></td>
 499     <td valign="top">display copious debugging information</td>
 500   </tr>
 501
 502   <tr>
 503     <td valign="top"><a href="../www/command-line-options.html#define">-define <em class="option">format:option</em></a></td>
 504     <td valign="top">define one or more image format options</td>
 505   </tr>
 506
 507   <tr>
 508     <td valign="top"><a href="../www/command-line-options.html#deconstruct">-deconstruct</a></td>
 509     <td valign="top">break down an image sequence into constituent parts</td>
 510   </tr>
 511
 512   <tr>
 513     <td valign="top"><a href="../www/command-line-options.html#delay">-delay <em class="option">value</em></a></td>
 514     <td valign="top">display the next image after pausing</td>
 515   </tr>
 516
 517   <tr>
 518     <td valign="top"><a href="../www/command-line-options.html#delete">-delete <em class="option">index</em></a></td>
 519     <td valign="top">delete the image from the image sequence</td>
 520   </tr>
 521
 522   <tr>
 523     <td valign="top"><a href="../www/command-line-options.html#density">-density <em class="option">geometry</em></a></td>
 524     <td valign="top">horizontal and vertical density of the image</td>
 525   </tr>
 526
 527   <tr>
 528     <td valign="top"><a href="../www/command-line-options.html#depth">-depth <em class="option">value</em></a></td>
 529     <td valign="top">image depth</td>
 530   </tr>
 531
 532   <tr>
 533     <td valign="top"><a href="../www/command-line-options.html#despeckle">-despeckle</a></td>
 534     <td valign="top">reduce the speckles within an image</td>
 535   </tr>
 536
 537   <tr>
 538     <td valign="top"><a href="../www/command-line-options.html#direction">-direction <em class="option">type</em></a></td>
 539     <td valign="top">render text right-to-left or left-to-right</td>
 540   </tr>
 541
 542   <tr>
 543     <td valign="top"><a href="../www/command-line-options.html#display">-display <em class="option">server</em></a></td>
 544     <td valign="top">get image or font from this X server</td>
 545   </tr>
 546
 547   <tr>
 548     <td valign="top"><a href="../www/command-line-options.html#dispose">-dispose <em class="option">method</em></a></td>
 549     <td valign="top">layer disposal method</td>
 550   </tr>
 551
 552   <tr>
 553     <td valign="top"><a href="../www/command-line-options.html#distort">-distort <em class="option">type coefficients</em></a></td>
 554     <td valign="top">distort image</td>
 555   </tr>
 556
 557   <tr>
 558     <td valign="top"><a href="../www/command-line-options.html#dither">-dither  <em class="option">method</em></a></td>
 559     <td valign="top">apply error diffusion to image</td>
 560   </tr>
 561
 562   <tr>
 563     <td valign="top"><a href="../www/command-line-options.html#draw">-draw <em class="option">string</em></a></td>
 564     <td valign="top">annotate the image with a graphic primitive</td>
 565   </tr>
 566
 567   <tr>
 568     <td valign="top"><a href="../www/command-line-options.html#edge">-edge <em class="option">radius</em></a></td>
 569     <td valign="top">apply a filter to detect edges in the image</td>
 570   </tr>
 571
 572   <tr>
 573     <td valign="top"><a href="../www/command-line-options.html#emboss">-emboss <em class="option">radius</em></a></td>
 574     <td valign="top">emboss an image</td>
 575   </tr>
 576
 577   <tr>
 578     <td valign="top"><a href="../www/command-line-options.html#encipher">-encipher <em class="option">filename</em></a></td>
 579     <td valign="top">convert plain pixels to cipher pixels</td>
 580   </tr>
 581
 582   <tr>
 583     <td valign="top"><a href="../www/command-line-options.html#encoding">-encoding <em class="option">type</em></a></td>
 584     <td valign="top">text encoding type</td>
 585   </tr>
 586
 587   <tr>
 588     <td valign="top"><a href="../www/command-line-options.html#endian">-endian <em class="option">type</em></a></td>
 589     <td valign="top">endianness (MSB or LSB) of the image</td>
 590   </tr>
 591
 592   <tr>
 593     <td valign="top"><a href="../www/command-line-options.html#enhance">-enhance</a></td>
 594     <td valign="top">apply a digital filter to enhance a noisy image</td>
 595   </tr>
 596
 597   <tr>
 598     <td valign="top"><a href="../www/command-line-options.html#equalize">-equalize</a></td>
 599     <td valign="top">perform histogram equalization to an image</td>
 600   </tr>
 601
 602   <tr>
 603     <td valign="top"><a href="../www/command-line-options.html#evaluate">-evaluate <em class="option">operator value</em></a></td>
 604     <td valign="top">evaluate an arithmetic, relational, or logical expression</td>
 605   </tr>
 606
 607   <tr>
 608     <td valign="top"><a href="../www/command-line-options.html#evaluate-sequence">-evaluate-sequence <em class="option">operator</em></a></td>
 609     <td valign="top">evaluate an arithmetic, relational, or logical expression for an image sequence</td>
 610   </tr>
 611
 612   <tr>
 613     <td valign="top"><a href="../www/command-line-options.html#extent">-extent <em class="option">geometry</em></a></td>
 614     <td valign="top">set the image size</td>
 615   </tr>
 616
 617   <tr>
 618     <td valign="top"><a href="../www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
 619     <td valign="top">extract area from image</td>
 620   </tr>
 621
 622   <tr>
 623     <td valign="top"><a href="../www/command-line-options.html#family">-family <em class="option">name</em></a></td>
 624     <td valign="top">render text with this font family</td>
 625   </tr>
 626
 627   <tr>
 628     <td valign="top"><a href="../www/command-line-options.html#fft">-fft</a></td>
 629     <td valign="top">implements the discrete Fourier transform (DFT)</td>
 630   </tr>
 631
 632   <tr>
 633     <td valign="top"><a href="../www/command-line-options.html#fill">-fill <em class="option">color</em></a></td>
 634     <td valign="top">color to use when filling a graphic primitive</td>
 635   </tr>
 636
 637   <tr>
 638     <td valign="top"><a href="../www/command-line-options.html#filter">-filter <em class="option">type</em></a></td>
 639     <td valign="top">use this filter when resizing an image</td>
 640   </tr>
 641
 642   <tr>
 643     <td valign="top"><a href="../www/command-line-options.html#flatten">-flatten</a></td>
 644     <td valign="top">flatten a sequence of images</td>
 645   </tr>
 646
 647   <tr>
 648     <td valign="top"><a href="../www/command-line-options.html#flip">-flip</a></td>
 649     <td valign="top">flip image in the vertical direction</td>
 650   </tr>
 651
 652   <tr>
 653     <td valign="top"><a href="../www/command-line-options.html#floodfill">-floodfill <em class="option">geometry color</em></a></td>
 654     <td valign="top">floodfill the image with color</td>
 655   </tr>
 656
 657   <tr>
 658     <td valign="top"><a href="../www/command-line-options.html#flop">-flop</a></td>
 659     <td valign="top">flop image in the horizontal direction</td>
 660   </tr>
 661
 662   <tr>
 663     <td valign="top"><a href="../www/command-line-options.html#font">-font <em class="option">name</em></a></td>
 664     <td valign="top">render text with this font</td>
 665   </tr>
 666
 667   <tr>
 668     <td valign="top"><a href="../www/command-line-options.html#format_identify_">-format <em class="option">string</em></a></td>
 669     <td valign="top">output formatted image characteristics</td>
 670   </tr>
 671
 672   <tr>
 673     <td valign="top"><a href="../www/command-line-options.html#frame">-frame <em class="option">geometry</em></a></td>
 674     <td valign="top">surround image with an ornamental border</td>
 675   </tr>
 676
 677   <tr>
 678     <td valign="top"><a href="../www/command-line-options.html#function">-function <em class="option">name</em></a></td>
 679     <td valign="top">apply a function to the image</td>
 680   </tr>
 681
 682   <tr>
 683     <td valign="top"><a href="../www/command-line-options.html#fuzz">-fuzz <em class="option">distance</em></a></td>
 684     <td valign="top">colors within this distance are considered equal</td>
 685   </tr>
 686
 687   <tr>
 688     <td valign="top"><a href="../www/command-line-options.html#fx">-fx <em class="option">expression</em></a></td>
 689     <td valign="top">apply mathematical expression to an image channel(s)</td>
 690   </tr>
 691
 692   <tr>
 693     <td valign="top"><a href="../www/command-line-options.html#gamma">-gamma <em class="option">value</em></a></td>
 694     <td valign="top">level of gamma correction</td>
 695   </tr>
 696
 697   <tr>
 698     <td valign="top"><a href="../www/command-line-options.html#gaussian-blur">-gaussian-blur <em class="option">geometry</em></a></td>
 699     <td valign="top">reduce image noise and reduce detail levels</td>
 700   </tr>
 701
 702   <tr>
 703     <td valign="top"><a href="../www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
 704     <td valign="top">preferred size or location of the image</td>
 705   </tr>
 706
 707   <tr>
 708     <td valign="top"><a href="../www/command-line-options.html#gravity">-gravity <em class="option">type</em></a></td>
 709     <td valign="top">horizontal and vertical text placement</td>
 710   </tr>
 711
 712   <tr>
 713     <td valign="top"><a href="../www/command-line-options.html#green-primary">-green-primary <em class="option">point</em></a></td>
 714     <td valign="top">chromaticity green primary point</td>
 715   </tr>
 716
 717   <tr>
 718     <td valign="top"><a href="../www/command-line-options.html#help">-help</a></td>
 719     <td valign="top">print program options</td>
 720   </tr>
 721
 722   <tr>
 723     <td valign="top"><a href="../www/command-line-options.html#identify">-identify</a></td>
 724     <td valign="top">identify the format and characteristics of the image</td>
 725   </tr>
 726
 727   <tr>
 728     <td valign="top"><a href="../www/command-line-options.html#ift">-ifft</a></td>
 729     <td valign="top">implements the inverse discrete Fourier transform (DFT)</td>
 730   </tr>
 731
 732   <tr>
 733     <td valign="top"><a href="../www/command-line-options.html#implode">-implode <em class="option">amount</em></a></td>
 734     <td valign="top">implode image pixels about the center</td>
 735   </tr>
 736
 737   <tr>
 738     <td valign="top"><a href="../www/command-line-options.html#insert">-insert <em class="option">index</em></a></td>
 739     <td valign="top">insert last image into the image sequence</td>
 740   </tr>
 741
 742   <tr>
 743     <td valign="top"><a href="../www/command-line-options.html#intent">-intent <em class="option">type</em></a></td>
 744     <td valign="top">type of rendering intent when managing the image color</td>
 745   </tr>
 746
 747   <tr>
 748     <td valign="top"><a href="../www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
 749     <td valign="top">type of image interlacing scheme</td>
 750   </tr>
 751
 752   <tr>
 753     <td valign="top"><a href="../www/command-line-options.html#interline-spacing">-interline-spacing <em class="option">value</em></a></td>
 754     <td valign="top">the space between two text lines</td>
 755   </tr>
 756
 757   <tr>
 758     <td valign="top"><a href="../www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
 759     <td valign="top">pixel color interpolation method</td>
 760   </tr>
 761
 762   <tr>
 763     <td valign="top"><a href="../www/command-line-options.html#interword-spacing">-interword-spacing <em class="option">value</em></a></td>
 764     <td valign="top">the space between two words</td>
 765   </tr>
 766
 767   <tr>
 768     <td valign="top"><a href="../www/command-line-options.html#kerning">-kerning <em class="option">value</em></a></td>
 769     <td valign="top">the space between two characters</td>
 770   </tr>
 771
 772   <tr>
 773     <td valign="top"><a href="../www/command-line-options.html#label">-label <em class="option">string</em></a></td>
 774     <td valign="top">assign a label to an image</td>
 775   </tr>
 776
 777   <tr>
 778     <td valign="top"><a href="../www/command-line-options.html#lat">-lat <em class="option">geometry</em></a></td>
 779     <td valign="top">local adaptive thresholding</td>
 780   </tr>
 781
 782   <tr>
 783     <td valign="top"><a href="../www/command-line-options.html#layers">-layers <em class="option">method</em></a></td>
 784     <td valign="top">optimize or compare image layers</td>
 785   </tr>
 786
 787   <tr>
 788     <td valign="top"><a href="../www/command-line-options.html#level">-level <em class="option">value</em></a></td>
 789     <td valign="top">adjust the level of image contrast</td>
 790   </tr>
 791
 792   <tr>
 793     <td valign="top"><a href="../www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
 794     <td valign="top">pixel cache resource limit</td>
 795   </tr>
 796
 797   <tr>
 798     <td valign="top"><a href="../www/command-line-options.html#linear-stretch">-linear-stretch <em class="option">geometry</em></a></td>
 799     <td valign="top">linear with saturation histogram stretch</td>
 800   </tr>
 801
 802   <tr>
 803     <td valign="top"><a href="../www/command-line-options.html#liquid-rescale">-liquid-rescale <em class="option">geometry</em></a></td>
 804     <td valign="top">rescale image with seam-carving</td>
 805   </tr>
 806
 807   <tr>
 808     <td valign="top"><a href="../www/command-line-options.html#log">-log <em class="option">format</em></a></td>
 809     <td valign="top">format of debugging information</td>
 810   </tr>
 811
 812   <tr>
 813     <td valign="top"><a href="../www/command-line-options.html#loop">-loop <em class="option">iterations</em></a></td>
 814     <td valign="top">add Netscape loop extension to your GIF animation</td>
 815   </tr>
 816
 817   <tr>
 818     <td valign="top"><a href="../www/command-line-options.html#mask">-mask <em class="option">filename</em></a></td>
 819     <td valign="top">associate a mask with the image</td>
 820   </tr>
 821
 822   <tr>
 823     <td valign="top"><a href="../www/command-line-options.html#mattecolor">-mattecolor <em class="option">color</em></a></td>
 824     <td valign="top">frame color</td>
 825   </tr>
 826
 827   <tr>
 828     <td valign="top"><a href="../www/command-line-options.html#median">-median <em class="option">radius</em></a></td>
 829     <td valign="top">apply a median filter to the image</td>
 830   </tr>
 831
 832   <tr>
 833     <td valign="top"><a href="../www/command-line-options.html#modulate">-modulate <em class="option">value</em></a></td>
 834     <td valign="top">vary the brightness, saturation, and hue</td>
 835   </tr>
 836
 837   <tr>
 838     <td valign="top"><a href="../www/command-line-options.html#monitor">-monitor</a></td>
 839     <td valign="top">monitor progress</td>
 840   </tr>
 841
 842   <tr>
 843     <td valign="top"><a href="../www/command-line-options.html#monochrome">-monochrome</a></td>
 844     <td valign="top">transform image to black and white</td>
 845   </tr>
 846
 847   <tr>
 848     <td valign="top"><a href="../www/command-line-options.html#morph">-morph <em class="option">value</em></a></td>
 849     <td valign="top">morph an image sequence</td>
 850   </tr>
 851
 852   <tr>
 853     <td valign="top"><a href="../www/command-line-options.html#morphology">-morphology <em class="option">method</em></a> <em class="option">kernel</em></td>
 854     <td valign="top">apply a morphology method to the image</td>
 855   </tr>
 856
 857   <tr>
 858     <td valign="top"><a href="../www/command-line-options.html#motion-blur">-motion-blur <em class="option">geometry</em></a></td>
 859     <td valign="top">simulate motion blur</td>
 860   </tr>
 861
 862   <tr>
 863     <td valign="top"><a href="../www/command-line-options.html#negate">-negate</a></td>
 864     <td valign="top">replace each pixel with its complementary color </td>
 865   </tr>
 866
 867   <tr>
 868     <td valign="top"><a href="../www/command-line-options.html#noise">-noise <em class="option">radius</em></a></td>
 869     <td valign="top">add or reduce noise in an image</td>
 870   </tr>
 871
 872   <tr>
 873     <td valign="top"><a href="../www/command-line-options.html#normalize">-normalize</a></td>
 874     <td valign="top">transform image to span the full range of colors</td>
 875   </tr>
 876
 877   <tr>
 878     <td valign="top"><a href="../www/command-line-options.html#opaque">-opaque <em class="option">color</em></a></td>
 879     <td valign="top">change this color to the fill color</td>
 880   </tr>
 881
 882   <tr>
 883     <td valign="top"><a href="../www/command-line-options.html#ordered-dither">-ordered-dither <em class="option">NxN</em></a></td>
 884     <td valign="top">ordered dither the image</td>
 885   </tr>
 886
 887   <tr>
 888     <td valign="top"><a href="../www/command-line-options.html#orient">-orient <em class="option">type</em></a></td>
 889     <td valign="top">image orientation</td>
 890   </tr>
 891
 892   <tr>
 893     <td valign="top"><a href="../www/command-line-options.html#page">-page <em class="option">geometry</em></a></td>
 894     <td valign="top">size and location of an image canvas (setting)</td>
 895   </tr>
 896
 897   <tr>
 898     <td valign="top"><a href="../www/command-line-options.html#paint">-paint <em class="option">radius</em></a></td>
 899     <td valign="top">simulate an oil painting</td>
 900   </tr>
 901
 902   <tr>
 903     <td valign="top"><a href="../www/command-line-options.html#ping">-ping</a></td>
 904     <td valign="top">efficiently determine image attributes</td>
 905   </tr>
 906
 907   <tr>
 908     <td valign="top"><a href="../www/command-line-options.html#pointsize">-pointsize <em class="option">value</em></a></td>
 909     <td valign="top">font point size</td>
 910   </tr>
 911
 912   <tr>
 913     <td valign="top"><a href="../www/command-line-options.html#polaroid">-polaroid <em class="option">angle</em></a></td>
 914     <td valign="top">simulate a Polaroid picture</td>
 915   </tr>
 916
 917   <tr>
 918     <td valign="top"><a href="../www/command-line-options.html#posterize">-posterize <em class="option">levels</em></a></td>
 919     <td valign="top">reduce the image to a limited number of color levels</td>
 920   </tr>
 921
 922   <tr>
 923     <td valign="top"><a href="../www/command-line-options.html#precision">-precision <em class="option">value</em></a></td>
 924     <td valign="top">set the maximum number of significant digits to be printed</td>
 925   </tr>
 926
 927   <tr>
 928     <td valign="top"><a href="../www/command-line-options.html#preview">-preview <em class="option">type</em></a></td>
 929     <td valign="top">image preview type</td>
 930   </tr>
 931
 932   <tr>
 933     <td valign="top"><a href="../www/command-line-options.html#print">-print <em class="option">string</em></a></td>
 934     <td valign="top">interpret string and print to console</td>
 935   </tr>
 936
 937   <tr>
 938     <td valign="top"><a href="../www/command-line-options.html#process">-process <em class="option">image-filter</em></a></td>
 939     <td valign="top">process the image with a custom image filter</td>
 940   </tr>
 941
 942   <tr>
 943     <td valign="top"><a href="../www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
 944     <td valign="top">add, delete, or apply an image profile</td>
 945   </tr>
 946
 947   <tr>
 948     <td valign="top"><a href="../www/command-line-options.html#quality">-quality <em class="option">value</em></a></td>
 949     <td valign="top">JPEG/MIFF/PNG compression level</td>
 950   </tr>
 951
 952   <tr>
 953     <td valign="top"><a href="../www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
 954     <td valign="top">reduce image colors in this colorspace</td>
 955   </tr>
 956
 957   <tr>
 958     <td valign="top"><a href="../www/command-line-options.html#quiet">-quiet</a></td>
 959     <td valign="top">suppress all warning messages</td>
 960   </tr>
 961
 962   <tr>
 963     <td valign="top"><a href="../www/command-line-options.html#radial-blur">-radial-blur <em class="option">angle</em></a></td>
 964     <td valign="top">radial blur the image</td>
 965   </tr>
 966
 967   <tr>
 968     <td valign="top"><a href="../www/command-line-options.html#raise">-raise <em class="option">value</em></a></td>
 969     <td valign="top">lighten/darken image edges to create a 3-D effect</td>
 970   </tr>
 971
 972   <tr>
 973     <td valign="top"><a href="../www/command-line-options.html#random-threshold">-random-threshold <em class="option">low,high</em></a></td>
 974     <td valign="top">random threshold the image</td>
 975   </tr>
 976
 977   <tr>
 978     <td valign="top"><a href="../www/command-line-options.html#red-primary">-red-primary <em class="option">point</em></a></td>
 979     <td valign="top">chromaticity red primary point</td>
 980   </tr>
 981
 982   <tr>
 983     <td valign="top"><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
 984     <td valign="top">pay attention to warning messages.</td>
 985   </tr>
 986
 987   <tr>
 988     <td valign="top"><a href="../www/command-line-options.html#region">-region <em class="option">geometry</em></a></td>
 989     <td valign="top">apply options to a portion of the image</td>
 990   </tr>
 991
 992   <tr>
 993     <td valign="top"><a href="../www/command-line-options.html#remap">-remap <em class="option">filename</em></a></td>
 994     <td valign="top">transform image colors to match this set of colors</td>
 995   </tr>
 996
 997   <tr>
 998     <td valign="top"><a href="../www/command-line-options.html#render">-render</a></td>
 999     <td valign="top">render vector graphics</td>
1000   </tr>
1001
1002   <tr>
1003     <td valign="top"><a href="../www/command-line-options.html#repage">-repage <em class="option">geometry</em></a></td>
1004     <td valign="top">size and location of an image canvas</td>
1005   </tr>
1006
1007   <tr>
1008     <td valign="top"><a href="../www/command-line-options.html#resample">-resample <em class="option">geometry</em></a></td>
1009     <td valign="top">change the resolution of an image</td>
1010   </tr>
1011
1012   <tr>
1013     <td valign="top"><a href="../www/command-line-options.html#resize">-resize <em class="option">geometry</em></a></td>
1014     <td valign="top">resize the image</td>
1015   </tr>
1016
1017   <tr>
1018     <td valign="top"><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
1019     <td valign="top">settings remain in effect until parenthesis boundary.</td>
1020   </tr>
1021
1022   <tr>
1023     <td valign="top"><a href="../www/command-line-options.html#roll">-roll <em class="option">geometry</em></a></td>
1024     <td valign="top">roll an image vertically or horizontally</td>
1025   </tr>
1026
1027   <tr>
1028     <td valign="top"><a href="../www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
1029     <td valign="top">apply Paeth rotation to the image</td>
1030   </tr>
1031
1032   <tr>
1033     <td valign="top"><a href="../www/command-line-options.html#sample">-sample <em class="option">geometry</em></a></td>
1034     <td valign="top">scale image with pixel sampling</td>
1035   </tr>
1036
1037   <tr>
1038     <td valign="top"><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
1039     <td valign="top">horizontal and vertical sampling factor</td>
1040   </tr>
1041
1042   <tr>
1043     <td valign="top"><a href="../www/command-line-options.html#scale">-scale <em class="option">geometry</em></a></td>
1044     <td valign="top">scale the image</td>
1045   </tr>
1046
1047   <tr>
1048     <td valign="top"><a href="../www/command-line-options.html#scene">-scene <em class="option">value</em></a></td>
1049     <td valign="top">image scene number</td>
1050   </tr>
1051
1052   <tr>
1053     <td valign="top"><a href="../www/command-line-options.html#seed">-seed <em class="option">value</em></a></td>
1054     <td valign="top">seed a new sequence of pseudo-random numbers</td>
1055   </tr>
1056
1057   <tr>
1058     <td valign="top"><a href="../www/command-line-options.html#segment">-segment <em class="option">values</em></a></td>
1059     <td valign="top">segment an image</td>
1060   </tr>
1061
1062   <tr>
1063     <td valign="top"><a href="../www/command-line-options.html#threshold">-selective-blur <em class="option">geometry</em></a></td>
1064     <td valign="top">selectively blur pixels within a contrast threshold</td>
1065   </tr>
1066
1067   <tr>
1068     <td valign="top"><a href="../www/command-line-options.html#separate">-separate</a></td>
1069     <td valign="top">separate an image channel into a grayscale image</td>
1070   </tr>
1071
1072   <tr>
1073     <td valign="top"><a href="../www/command-line-options.html#sepia-tone">-sepia-tone <em class="option">threshold</em></a></td>
1074     <td valign="top">simulate a sepia-toned photo</td>
1075   </tr>
1076
1077   <tr>
1078     <td valign="top"><a href="../www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
1079     <td valign="top">set an image attribute</td>
1080   </tr>
1081
1082   <tr>
1083     <td valign="top"><a href="../www/command-line-options.html#shade">-shade <em class="option">degrees</em></a></td>
1084     <td valign="top">shade the image using a distant light source</td>
1085   </tr>
1086
1087   <tr>
1088     <td valign="top"><a href="../www/command-line-options.html#shadow">-shadow <em class="option">geometry</em></a></td>
1089     <td valign="top">simulate an image shadow</td>
1090   </tr>
1091
1092   <tr>
1093     <td valign="top"><a href="../www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
1094     <td valign="top">sharpen the image</td>
1095   </tr>
1096
1097   <tr>
1098     <td valign="top"><a href="../www/command-line-options.html#shave">-shave <em class="option">geometry</em></a></td>
1099     <td valign="top">shave pixels from the image edges</td>
1100   </tr>
1101
1102   <tr>
1103     <td valign="top"><a href="../www/command-line-options.html#shear">-shear <em class="option">geometry</em></a></td>
1104     <td valign="top">slide one edge of the image along the X or Y axis</td>
1105   </tr>
1106
1107   <tr>
1108     <td valign="top"><a href="../www/command-line-options.html#sigmoidal">-sigmoidal-contrast <em class="option">geometry</em></a></td>
1109     <td valign="top">increase the contrast without saturating highlights or shadows</td>
1110   </tr>
1111
1112   <tr>
1113     <td valign="top"><a href="../www/command-line-options.html#size">-size <em class="option">geometry</em></a></td>
1114     <td valign="top">width and height of image</td>
1115   </tr>
1116
1117   <tr>
1118     <td valign="top"><a href="../www/command-line-options.html#sketch">-sketch <em class="option">geometry</em></a></td>
1119     <td valign="top">simulate a pencil sketch</td>
1120   </tr>
1121
1122   <tr>
1123     <td valign="top"><a href="../www/command-line-options.html#smush">-smush <em class="option">offset</em></a></td>
1124     <td valign="top">smush an image sequence together</td>
1125   </tr>
1126
1127   <tr>
1128     <td valign="top"><a href="../www/command-line-options.html#solarize">-solarize <em class="option">threshold</em></a></td>
1129     <td valign="top">negate all pixels above the threshold level</td>
1130   </tr>
1131
1132   <tr>
1133     <td valign="top"><a href="../www/command-line-options.html#splice">-splice <em class="option">geometry</em></a></td>
1134     <td valign="top">splice the background color into the image</td>
1135   </tr>
1136
1137   <tr>
1138     <td valign="top"><a href="../www/command-line-options.html#spread">-spread <em class="option">radius</em></a></td>
1139     <td valign="top">displace image pixels by a random amount</td>
1140   </tr>
1141
1142   <tr>
1143     <td valign="top"><a href="../www/command-line-options.html#strip">-strip</a></td>
1144     <td valign="top">strip image of all profiles and comments</td>
1145   </tr>
1146
1147   <tr>
1148     <td valign="top"><a href="../www/command-line-options.html#stroke">-stroke <em class="option">color</em></a></td>
1149     <td valign="top">graphic primitive stroke color</td>
1150   </tr>
1151
1152   <tr>
1153     <td valign="top"><a href="../www/command-line-options.html#strokewidth">-strokewidth <em class="option">value</em></a></td>
1154     <td valign="top">graphic primitive stroke width</td>
1155   </tr>
1156
1157   <tr>
1158     <td valign="top"><a href="../www/command-line-options.html#stretch">-stretch <em class="option">type</em></a></td>
1159     <td valign="top">render text with this font stretch</td>
1160   </tr>
1161
1162   <tr>
1163     <td valign="top"><a href="../www/command-line-options.html#style">-style <em class="option">type</em></a></td>
1164     <td valign="top">render text with this font style</td>
1165   </tr>
1166
1167   <tr>
1168     <td valign="top"><a href="../www/command-line-options.html#swap">-swap <em class="option">indexes</em></a></td>
1169     <td valign="top">swap two images in the image sequence</td>
1170   </tr>
1171
1172   <tr>
1173     <td valign="top"><a href="../www/command-line-options.html#swirl">-swirl <em class="option">degrees</em></a></td>
1174     <td valign="top">swirl image pixels about the center</td>
1175   </tr>
1176
1177   <tr>
1178     <td valign="top"><a href="../www/command-line-options.html#synchronize">-synchronize</a></td>
1179     <td valign="top">synchronize image to storage device</td>
1180   </tr>
1181
1182   <tr>
1183     <td valign="top"><a href="../www/command-line-options.html#texture">-texture <em class="option">filename</em></a></td>
1184     <td valign="top">name of texture to tile onto the image background</td>
1185   </tr>
1186
1187   <tr>
1188     <td valign="top"><a href="../www/command-line-options.html#threshold">-threshold <em class="option">value</em></a></td>
1189     <td valign="top">threshold the image</td>
1190   </tr>
1191
1192   <tr>
1193     <td valign="top"><a href="../www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td>
1194     <td valign="top">create a thumbnail of the image</td>
1195   </tr>
1196
1197   <tr>
1198     <td valign="top"><a href="../www/command-line-options.html#tile">-tile <em class="option">filename</em></a></td>
1199     <td valign="top">tile image when filling a graphic primitive</td>
1200   </tr>
1201
1202   <tr>
1203     <td valign="top"><a href="../www/command-line-options.html#tile-offset">-tile-offset <em class="option">geometry</em></a></td>
1204     <td valign="top">set the image tile offset</td>
1205   </tr>
1206
1207   <tr>
1208     <td valign="top"><a href="../www/command-line-options.html#tint">-tint <em class="option">value</em></a></td>
1209     <td valign="top">tint the image with the fill color</td>
1210   </tr>
1211
1212   <tr>
1213     <td valign="top"><a href="../www/command-line-options.html#transform">-transform</a></td>
1214     <td valign="top">affine transform image</td>
1215   </tr>
1216
1217   <tr>
1218     <td valign="top"><a href="../www/command-line-options.html#transparent">-transparent <em class="option">color</em></a></td>
1219     <td valign="top">make this color transparent within the image</td>
1220   </tr>
1221
1222   <tr>
1223     <td valign="top"><a href="../www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
1224     <td valign="top">transparent color</td>
1225   </tr>
1226
1227   <tr>
1228     <td valign="top"><a href="../www/command-line-options.html#transpose">-transpose</a></td>
1229     <td valign="top">flip image in the vertical direction and rotate 90 degrees</td>
1230   </tr>
1231
1232   <tr>
1233     <td valign="top"><a href="../www/command-line-options.html#transverse">-transverse</a></td>
1234     <td valign="top">flop image in the horizontal direction and rotate 270 degrees</td>
1235   </tr>
1236
1237   <tr>
1238     <td valign="top"><a href="../www/command-line-options.html#treedepth">-treedepth <em class="option">value</em></a></td>
1239     <td valign="top">color tree depth</td>
1240   </tr>
1241
1242   <tr>
1243     <td valign="top"><a href="../www/command-line-options.html#trim">-trim</a></td>
1244     <td valign="top">trim image edges</td>
1245   </tr>
1246
1247   <tr>
1248     <td valign="top"><a href="../www/command-line-options.html#type">-type <em class="option">type</em></a></td>
1249     <td valign="top">image type</td>
1250   </tr>
1251
1252   <tr>
1253     <td valign="top"><a href="../www/command-line-options.html#undercolor">-undercolor <em class="option">color</em></a></td>
1254     <td valign="top">annotation bounding box color</td>
1255   </tr>
1256
1257   <tr>
1258     <td valign="top"><a href="../www/command-line-options.html#unique-colors">-unique-colors</a></td>
1259     <td valign="top">discard all but one of any pixel color.</td>
1260   </tr>
1261
1262   <tr>
1263     <td valign="top"><a href="../www/command-line-options.html#units">-units <em class="option">type</em></a></td>
1264     <td valign="top">the units of image resolution</td>
1265   </tr>
1266
1267   <tr>
1268     <td valign="top"><a href="../www/command-line-options.html#unsharp">-unsharp <em class="option">geometry</em></a></td>
1269     <td valign="top">sharpen the image</td>
1270   </tr>
1271
1272   <tr>
1273     <td valign="top"><a href="../www/command-line-options.html#verbose">-verbose</a></td>
1274     <td valign="top">print detailed information about the image</td>
1275   </tr>
1276
1277   <tr>
1278     <td valign="top"><a href="../www/command-line-options.html#version">-version</a></td>
1279     <td valign="top">print version information</td>
1280   </tr>
1281
1282   <tr>
1283     <td valign="top"><a href="../www/command-line-options.html#view">-view</a></td>
1284     <td valign="top">FlashPix viewing transforms</td>
1285   </tr>
1286
1287   <tr>
1288     <td valign="top"><a href="../www/command-line-options.html#vignette">-vignette <em class="option">geometry</em></a></td>
1289     <td valign="top">soften the edges of the image in vignette style</td>
1290   </tr>
1291
1292   <tr>
1293     <td valign="top"><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
1294     <td valign="top">access method for pixels outside the boundaries of the image</td>
1295   </tr>
1296
1297   <tr>
1298     <td valign="top"><a href="../www/command-line-options.html#wave">-wave <em class="option">geometry</em></a></td>
1299     <td valign="top">alter an image along a sine wave</td>
1300   </tr>
1301
1302   <tr>
1303     <td valign="top"><a href="../www/command-line-options.html#weight">-weight <em class="option">type</em></a></td>
1304     <td valign="top">render text with this font weight</td>
1305   </tr>
1306
1307   <tr>
1308     <td valign="top"><a href="../www/command-line-options.html#white-point">-white-point <em class="option">point</em></a></td>
1309     <td valign="top">chromaticity white point</td>
1310   </tr>
1311
1312   <tr>
1313     <td valign="top"><a href="../www/command-line-options.html#white-threshold">-white-threshold <em class="option">value</em></a></td>
1314     <td valign="top">force all pixels above the threshold into white</td>
1315   </tr>
1316
1317   <tr>
1318     <td valign="top"><a href="../www/command-line-options.html#write">-write <em class="option">filename</em></a></td>
1319     <td valign="top">write images to this file</td>
1320   </tr>
1321
1322   </tbody>
1323 </table>
1324
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