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 196 \r
 197 <h1>ImageMagick Display 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>display</kbd> program to display an image or image sequence on any X server.  See <a href="../www/command-line-processing.html">Command Line Processing</a> for advice on how to structure your <kbd>display</kbd> command or see below for example 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>display</kbd> command here to illustrate its usefulness and ease of use.  To get started, lets display an image in the JPEG format:</p>
 208
 209 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>display rose.jpg</span></p>
 210 <p>To tile a slate texture onto the root window, use:</p>
 211
 212 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>display -size 1280x1024 -window root slate.png</span></p>
 213 <p>To display a visual image directory of all your JPEG images, use:</p>
 214
 215 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>display 'vid:*.jpg'</span></p>
 216 <p>You can find additional examples of using <kbd>display</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>
 217
 218 </div>
 219
 220 <h2><a id="options"></a>Option Summary</h2>
 221 <div class="doc-section">
 222
 223 <p>The <kbd>display</kbd> command recognizes these options.  Click on an option to get more details about how that option works.</p>
 224
 225 <table class="doc">
 226   <tbody>
 227   <tr>
 228     <th align="left">Option</th>
 229     <th align="left">Description</th>
 230   </tr>
 231
 232   <tr>
 233     <td valign="top"><a href="../www/command-line-options.html#alpha">-alpha</a></td>
 234     <td valign="top">on, activate, off, deactivate, set, opaque, copy",
 235 transparent, extract, background, or shape the alpha channel</td>
 236   </tr>
 237
 238   <tr>
 239     <td valign="top"><a href="../www/command-line-options.html#antialias">-antialias</a></td>
 240     <td valign="top">remove pixel-aliasing</td>
 241   </tr>
 242
 243   <tr>
 244     <td valign="top"><a href="../www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
 245     <td valign="top">decrypt image with this password</td>
 246   </tr>
 247
 248   <tr>
 249     <td valign="top"><a href="../www/command-line-options.html#backdrop">-backdrop</a></td>
 250     <td valign="top">display image centered on a backdrop</td>
 251   </tr>
 252
 253   <tr>
 254     <td valign="top"><a href="../www/command-line-options.html#background">-background <em class="option">color</em></a></td>
 255     <td valign="top">background color</td>
 256   </tr>
 257
 258   <tr>
 259     <td valign="top"><a href="../www/command-line-options.html#border">-border <em class="option">geometry</em></a></td>
 260     <td valign="top">surround image with a border of color</td>
 261   </tr>
 262
 263   <tr>
 264     <td valign="top"><a href="../www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
 265     <td valign="top">border color</td>
 266   </tr>
 267
 268   <tr>
 269     <td valign="top"><a href="../www/command-line-options.html#channel">-channel <em class="option">type</em></a></td>
 270     <td valign="top">apply option to select image channels</td>
 271   </tr>
 272
 273   <tr>
 274     <td valign="top"><a href="../www/command-line-options.html#clip">-clip</a></td>
 275     <td valign="top">clip along the first path from the 8BIM profile</td>
 276   </tr>
 277
 278   <tr>
 279     <td valign="top"><a href="../www/command-line-options.html#clip-path">-clip-path <em class="option">id</em></a></td>
 280     <td valign="top">clip along a named path from the 8BIM profile</td>
 281   </tr>
 282
 283   <tr>
 284     <td valign="top"><a href="../www/command-line-options.html#coalesce">-coalesce</a></td>
 285     <td valign="top">merge a sequence of images</td>
 286   </tr>
 287
 288   <tr>
 289     <td valign="top"><a href="../www/command-line-options.html#colormap">-colormap <em class="option">type</em></a></td>
 290     <td valign="top">Shared or Private</td>
 291   </tr>
 292
 293   <tr>
 294     <td valign="top"><a href="../www/command-line-options.html#colors">-colors <em class="option">value</em></a></td>
 295     <td valign="top">preferred number of colors in the image</td>
 296   </tr>
 297
 298   <tr>
 299     <td valign="top"><a href="../www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
 300     <td valign="top">set image colorspace</td>
 301   </tr>
 302
 303   <tr>
 304     <td valign="top"><a href="../www/command-line-options.html#comment">-comment <em class="option">string</em></a></td>
 305     <td valign="top">annotate image with comment</td>
 306   </tr>
 307
 308   <tr>
 309     <td valign="top"><a href="../www/command-line-options.html#compress">-compress <em class="option">type</em></a></td>
 310     <td valign="top">image compression type</td>
 311   </tr>
 312
 313   <tr>
 314     <td valign="top"><a href="../www/command-line-options.html#contrast">-contrast</a></td>
 315     <td valign="top">enhance or reduce the image contrast</td>
 316   </tr>
 317
 318   <tr>
 319     <td valign="top"><a href="../www/command-line-options.html#crop">-crop <em class="option">geometry</em></a></td>
 320     <td valign="top">preferred size and location of the cropped image</td>
 321   </tr>
 322
 323   <tr>
 324     <td valign="top"><a href="../www/command-line-options.html#debug">-debug <em class="option">events</em></a></td>
 325     <td valign="top">display copious debugging information</td>
 326   </tr>
 327
 328   <tr>
 329     <td valign="top"><a href="../www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
 330     <td valign="top">convert cipher pixels to plain</td>
 331   </tr>
 332
 333   <tr>
 334     <td valign="top"><a href="../www/command-line-options.html#define">-define <em class="option">format:option</em></a></td>
 335     <td valign="top">define one or more image format options</td>
 336   </tr>
 337
 338   <tr>
 339     <td valign="top"><a href="../www/command-line-options.html#delay">-delay <em class="option">value</em></a></td>
 340     <td valign="top">display the next image after pausing</td>
 341   </tr>
 342
 343   <tr>
 344     <td valign="top"><a href="../www/command-line-options.html#density">-density <em class="option">geometry</em></a></td>
 345     <td valign="top">horizontal and vertical density of the image</td>
 346   </tr>
 347
 348   <tr>
 349     <td valign="top"><a href="../www/command-line-options.html#depth">-depth <em class="option">value</em></a></td>
 350     <td valign="top">image depth</td>
 351   </tr>
 352
 353   <tr>
 354     <td valign="top"><a href="../www/command-line-options.html#despeckle">-despeckle</a></td>
 355     <td valign="top">reduce the speckles within an image</td>
 356   </tr>
 357
 358   <tr>
 359     <td valign="top"><a href="../www/command-line-options.html#display">-display <em class="option">server</em></a></td>
 360     <td valign="top">get image or font from this X server</td>
 361   </tr>
 362
 363   <tr>
 364     <td valign="top"><a href="../www/command-line-options.html#dispose">-dispose <em class="option">method</em></a></td>
 365     <td valign="top">layer disposal method</td>
 366   </tr>
 367
 368   <tr>
 369     <td valign="top"><a href="../www/command-line-options.html#dither">-dither  <em class="option">method</em></a></td>
 370     <td valign="top">apply error diffusion to image</td>
 371   </tr>
 372
 373   <tr>
 374     <td valign="top"><a href="../www/command-line-options.html#edge">-edge <em class="option">radius</em></a></td>
 375     <td valign="top">apply a filter to detect edges in the image</td>
 376   </tr>
 377
 378   <tr>
 379     <td valign="top"><a href="../www/command-line-options.html#endian">-endian <em class="option">type</em></a></td>
 380     <td valign="top">endianness (MSB or LSB) of the image</td>
 381   </tr>
 382
 383   <tr>
 384     <td valign="top"><a href="../www/command-line-options.html#enhance">-enhance</a></td>
 385     <td valign="top">apply a digital filter to enhance a noisy image</td>
 386   </tr>
 387
 388   <tr>
 389     <td valign="top"><a href="../www/command-line-options.html#equalize">-equalize</a></td>
 390     <td valign="top">perform histogram equalization to an image</td>
 391   </tr>
 392
 393   <tr>
 394     <td valign="top"><a href="../www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
 395     <td valign="top">extract area from image</td>
 396   </tr>
 397
 398   <tr>
 399     <td valign="top"><a href="../www/command-line-options.html#filter">-filter <em class="option">type</em></a></td>
 400     <td valign="top">use this filter when resizing an image</td>
 401   </tr>
 402
 403   <tr>
 404     <td valign="top"><a href="../www/command-line-options.html#flatten">-flatten</a></td>
 405     <td valign="top">flatten a sequence of images</td>
 406   </tr>
 407
 408   <tr>
 409     <td valign="top"><a href="../www/command-line-options.html#flip">-flip</a></td>
 410     <td valign="top">flip image in the vertical direction</td>
 411   </tr>
 412
 413   <tr>
 414     <td valign="top"><a href="../www/command-line-options.html#flop">-flop</a></td>
 415     <td valign="top">flop image in the horizontal direction</td>
 416   </tr>
 417
 418   <tr>
 419     <td valign="top"><a href="../www/command-line-options.html#frame">-frame <em class="option">geometry</em></a></td>
 420     <td valign="top">surround image with an ornamental border</td>
 421   </tr>
 422
 423   <tr>
 424     <td valign="top"><a href="../www/command-line-options.html#fuzz">-fuzz <em class="option">distance</em></a></td>
 425     <td valign="top">colors within this distance are considered equal</td>
 426   </tr>
 427
 428   <tr>
 429     <td valign="top"><a href="../www/command-line-options.html#gamma">-gamma <em class="option">value</em></a></td>
 430     <td valign="top">level of gamma correction</td>
 431   </tr>
 432
 433   <tr>
 434     <td valign="top"><a href="../www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
 435     <td valign="top">preferred size or location of the image</td>
 436   </tr>
 437
 438   <tr>
 439     <td valign="top"><a href="../www/command-line-options.html#gravity">-gravity <em class="option">geometry</em></a></td>
 440     <td valign="top">horizontal and vertical backdrop placement</td>
 441   </tr>
 442
 443   <tr>
 444     <td valign="top"><a href="../www/command-line-options.html#help">-help</a></td>
 445     <td valign="top">print program options</td>
 446   </tr>
 447
 448   <tr>
 449     <td valign="top"><a href="../www/command-line-options.html#identify">-identify</a></td>
 450     <td valign="top">identify the format and characteristics of the image</td>
 451   </tr>
 452
 453   <tr>
 454     <td valign="top"><a href="../www/command-line-options.html#immutable">-immutable <em class="option">type</em></a></td>
 455     <td valign="top">prohibit image edits</td>
 456   </tr>
 457
 458   <tr>
 459     <td valign="top"><a href="../www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
 460     <td valign="top">type of image interlacing scheme</td>
 461   </tr>
 462
 463   <tr>
 464     <td valign="top"><a href="../www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
 465     <td valign="top">pixel color interpolation method</td>
 466   </tr>
 467
 468   <tr>
 469     <td valign="top"><a href="../www/command-line-options.html#label">-label <em class="option">name</em></a></td>
 470     <td valign="top">assign a label to an image</td>
 471   </tr>
 472
 473   <tr>
 474     <td valign="top"><a href="../www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
 475     <td valign="top">pixel cache resource limit</td>
 476   </tr>
 477
 478   <tr>
 479     <td valign="top"><a href="../www/command-line-options.html#log">-log <em class="option">format</em></a></td>
 480     <td valign="top">format of debugging information</td>
 481   </tr>
 482
 483   <tr>
 484     <td valign="top"><a href="../www/command-line-options.html#map">-map <em class="option">filename</em></a></td>
 485     <td valign="top">transform image colors to match this set of colors</td>
 486   </tr>
 487
 488   <tr>
 489     <td valign="top"><a href="../www/command-line-options.html#mattecolor">-mattecolor <em class="option">color</em></a></td>
 490     <td valign="top">frame color</td>
 491   </tr>
 492
 493   <tr>
 494     <td valign="top"><a href="../www/command-line-options.html#monitor">-monitor</a></td>
 495     <td valign="top">monitor progress</td>
 496   </tr>
 497
 498   <tr>
 499     <td valign="top"><a href="../www/command-line-options.html#monochrome">-monochrome</a></td>
 500     <td valign="top">transform image to black and white</td>
 501   </tr>
 502
 503   <tr>
 504     <td valign="top"><a href="../www/command-line-options.html#negate">-negate</a></td>
 505     <td valign="top">replace each pixel with its complementary color </td>
 506   </tr>
 507
 508   <tr>
 509     <td valign="top"><a href="../www/command-line-options.html#normalize">-normalize</a></td>
 510     <td valign="top">transform image to span the full range of colors</td>
 511   </tr>
 512
 513   <tr>
 514     <td valign="top"><a href="../www/command-line-options.html#page">-page <em class="option">geometry</em></a></td>
 515     <td valign="top">size and location of an image canvas (setting)</td>
 516   </tr>
 517
 518   <tr>
 519     <td valign="top"><a href="../www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
 520     <td valign="top">add, delete, or apply an image profile</td>
 521   </tr>
 522
 523   <tr>
 524     <td valign="top"><a href="../www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
 525     <td valign="top">reduce image colors in this colorspace</td>
 526   </tr>
 527
 528   <tr>
 529     <td valign="top"><a href="../www/command-line-options.html#quiet">-quiet</a></td>
 530     <td valign="top">suppress all warning messages</td>
 531   </tr>
 532
 533   <tr>
 534     <td valign="top"><a href="../www/command-line-options.html#raise">-raise <em class="option">value</em></a></td>
 535     <td valign="top">lighten/darken image edges to create a 3-D effect</td>
 536   </tr>
 537
 538   <tr>
 539     <td valign="top"><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
 540     <td valign="top">pay attention to warning messages.</td>
 541   </tr>
 542
 543   <tr>
 544     <td valign="top"><a href="../www/command-line-options.html#remote">-remote <em class="option">command</em></a></td>
 545     <td valign="top">execute a command in an remote display process</td>
 546   </tr>
 547
 548   <tr>
 549     <td valign="top"><a href="../www/command-line-options.html#resample">-resample <em class="option">geometry</em></a></td>
 550     <td valign="top">change the resolution of an image</td>
 551   </tr>
 552
 553   <tr>
 554     <td valign="top"><a href="../www/command-line-options.html#resize">-resize <em class="option">geometry</em></a></td>
 555     <td valign="top">resize the image</td>
 556   </tr>
 557
 558   <tr>
 559     <td valign="top"><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
 560     <td valign="top">settings remain in effect until parenthesis boundary.</td>
 561   </tr>
 562
 563   <tr>
 564     <td valign="top"><a href="../www/command-line-options.html#roll">-roll <em class="option">geometry</em></a></td>
 565     <td valign="top">roll an image vertically or horizontally</td>
 566   </tr>
 567
 568   <tr>
 569     <td valign="top"><a href="../www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
 570     <td valign="top">apply Paeth rotation to the image</td>
 571   </tr>
 572
 573   <tr>
 574     <td valign="top"><a href="../www/command-line-options.html#sample">-sample <em class="option">geometry</em></a></td>
 575     <td valign="top">scale image with pixel sampling</td>
 576   </tr>
 577
 578   <tr>
 579     <td valign="top"><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
 580     <td valign="top">horizontal and vertical sampling factor</td>
 581   </tr>
 582
 583   <tr>
 584     <td valign="top"><a href="../www/command-line-options.html#scene">-scene <em class="option">value</em></a></td>
 585     <td valign="top">image scene number</td>
 586   </tr>
 587
 588   <tr>
 589     <td valign="top"><a href="../www/command-line-options.html#seed">-seed <em class="option">value</em></a></td>
 590     <td valign="top">seed a new sequence of pseudo-random numbers</td>
 591   </tr>
 592
 593   <tr>
 594     <td valign="top"><a href="../www/command-line-options.html#segment">-segment <em class="option">values</em></a></td>
 595     <td valign="top">segment an image</td>
 596   </tr>
 597
 598   <tr>
 599     <td valign="top"><a href="../www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
 600     <td valign="top">set an image attribute</td>
 601   </tr>
 602
 603   <tr>
 604     <td valign="top"><a href="../www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
 605     <td valign="top">sharpen the image</td>
 606   </tr>
 607
 608   <tr>
 609     <td valign="top"><a href="../www/command-line-options.html#size">-size <em class="option">geometry</em></a></td>
 610     <td valign="top">width and height of image</td>
 611   </tr>
 612
 613   <tr>
 614     <td valign="top"><a href="../www/command-line-options.html#strip">-strip</a></td>
 615     <td valign="top">strip image of all profiles and comments</td>
 616   </tr>
 617
 618   <tr>
 619     <td valign="top"><a href="../www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td>
 620     <td valign="top">create a thumbnail of the image</td>
 621   </tr>
 622
 623   <tr>
 624     <td valign="top"><a href="../www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
 625     <td valign="top">transparent color</td>
 626   </tr>
 627
 628   <tr>
 629     <td valign="top"><a href="../www/command-line-options.html#black-threshold">-black-threshold <em class="option">value</em></a></td>
 630     <td valign="top">force all pixels below the threshold into black</td>
 631   </tr>
 632
 633   <tr>
 634     <td valign="top"><a href="../www/command-line-options.html#trim">-trim</a></td>
 635     <td valign="top">trim image edges</td>
 636   </tr>
 637
 638   <tr>
 639     <td valign="top"><a href="../www/command-line-options.html#update">-update <em class="option">seconds</em></a></td>
 640     <td valign="top">detect when image file is modified and redisplay</td>
 641   </tr>
 642
 643   <tr>
 644     <td valign="top"><a href="../www/command-line-options.html#verbose">-verbose</a></td>
 645     <td valign="top">print detailed information about the image</td>
 646   </tr>
 647
 648   <tr>
 649     <td valign="top"><a href="../www/command-line-options.html#version">-version</a></td>
 650     <td valign="top">print version information</td>
 651   </tr>
 652
 653   <tr>
 654     <td valign="top"><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
 655     <td valign="top">access method for pixels outside the boundaries of the image</td>
 656   </tr>
 657
 658   <tr>
 659     <td valign="top"><a href="../www/command-line-options.html#visual">-visual</a></td>
 660     <td valign="top">display image using this visual type</td>
 661   </tr>
 662
 663   <tr>
 664     <td valign="top"><a href="../www/command-line-options.html#write">-window <em class="option">id</em></a></td>
 665     <td valign="top">display image to background of this window</td>
 666   </tr>
 667
 668   <tr>
 669     <td valign="top"><a href="../www/command-line-options.html#write">-window-group <em class="option">id</em></a></td>
 670     <td valign="top">exit program when this window id is destroyed</td>
 671   </tr>
 672
 673   <tr>
 674     <td valign="top"><a href="../www/command-line-options.html#write">-write <em class="option">filename</em></a></td>
 675     <td valign="top">write images to this file</td>
 676   </tr>
 677   </tbody>
 678 </table>
 679
 680 </div>
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