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 178 \r
 179 <h1>ImageMagick Display Command-line Tool</h1>
 180 <p class="navigation-index">[<a href="#usage">Example Usage</a> &bull; <a href="#options">Option Summary</a>]</p>
 181
 182 <div class="doc-section">
 183 <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>
 184 </div>
 185
 186 <h2><a id="usage"></a>Example Usage</h2>
 187 <div class="doc-section">
 188
 189 <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>
 190
 191 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>display rose.jpg</span></p>
 192 <p>To tile a slate texture onto the root window, use:</p>
 193
 194 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>display -size 1280x1024 -window root slate.png</span></p>
 195 <p>To display a visual image directory of all your JPEG images, use:</p>
 196
 197 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>display 'vid:*.jpg'</span></p>
 198 <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>
 199
 200 </div>
 201
 202 <h2><a id="options"></a>Option Summary</h2>
 203 <div class="doc-section">
 204
 205 <p>The <kbd>display</kbd> command recognizes these options.  Click on an option to get more details about how that option works.</p>
 206
 207 <table class="doc">
 208   <tbody>
 209   <tr>
 210     <th align="left">Option</th>
 211     <th align="left">Description</th>
 212   </tr>
 213
 214   <tr>
 215     <td valign="top"><a href="../www/command-line-options.html#alpha">-alpha</a></td>
 216     <td valign="top">on, activate, off, deactivate, set, opaque, copy",
 217 transparent, extract, background, or shape the alpha channel</td>
 218   </tr>
 219
 220   <tr>
 221     <td valign="top"><a href="../www/command-line-options.html#antialias">-antialias</a></td>
 222     <td valign="top">remove pixel-aliasing</td>
 223   </tr>
 224
 225   <tr>
 226     <td valign="top"><a href="../www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
 227     <td valign="top">decrypt image with this password</td>
 228   </tr>
 229
 230   <tr>
 231     <td valign="top"><a href="../www/command-line-options.html#backdrop">-backdrop</a></td>
 232     <td valign="top">display image centered on a backdrop</td>
 233   </tr>
 234
 235   <tr>
 236     <td valign="top"><a href="../www/command-line-options.html#background">-background <em class="option">color</em></a></td>
 237     <td valign="top">background color</td>
 238   </tr>
 239
 240   <tr>
 241     <td valign="top"><a href="../www/command-line-options.html#border">-border <em class="option">geometry</em></a></td>
 242     <td valign="top">surround image with a border of color</td>
 243   </tr>
 244
 245   <tr>
 246     <td valign="top"><a href="../www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
 247     <td valign="top">border color</td>
 248   </tr>
 249
 250   <tr>
 251     <td valign="top"><a href="../www/command-line-options.html#channel">-channel <em class="option">type</em></a></td>
 252     <td valign="top">apply option to select image channels</td>
 253   </tr>
 254
 255   <tr>
 256     <td valign="top"><a href="../www/command-line-options.html#clip">-clip</a></td>
 257     <td valign="top">clip along the first path from the 8BIM profile</td>
 258   </tr>
 259
 260   <tr>
 261     <td valign="top"><a href="../www/command-line-options.html#clip-path">-clip-path <em class="option">id</em></a></td>
 262     <td valign="top">clip along a named path from the 8BIM profile</td>
 263   </tr>
 264
 265   <tr>
 266     <td valign="top"><a href="../www/command-line-options.html#coalesce">-coalesce</a></td>
 267     <td valign="top">merge a sequence of images</td>
 268   </tr>
 269
 270   <tr>
 271     <td valign="top"><a href="../www/command-line-options.html#colormap">-colormap <em class="option">type</em></a></td>
 272     <td valign="top">Shared or Private</td>
 273   </tr>
 274
 275   <tr>
 276     <td valign="top"><a href="../www/command-line-options.html#colors">-colors <em class="option">value</em></a></td>
 277     <td valign="top">preferred number of colors in the image</td>
 278   </tr>
 279
 280   <tr>
 281     <td valign="top"><a href="../www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
 282     <td valign="top">set image colorspace</td>
 283   </tr>
 284
 285   <tr>
 286     <td valign="top"><a href="../www/command-line-options.html#comment">-comment <em class="option">string</em></a></td>
 287     <td valign="top">annotate image with comment</td>
 288   </tr>
 289
 290   <tr>
 291     <td valign="top"><a href="../www/command-line-options.html#compress">-compress <em class="option">type</em></a></td>
 292     <td valign="top">image compression type</td>
 293   </tr>
 294
 295   <tr>
 296     <td valign="top"><a href="../www/command-line-options.html#contrast">-contrast</a></td>
 297     <td valign="top">enhance or reduce the image contrast</td>
 298   </tr>
 299
 300   <tr>
 301     <td valign="top"><a href="../www/command-line-options.html#crop">-crop <em class="option">geometry</em></a></td>
 302     <td valign="top">preferred size and location of the cropped image</td>
 303   </tr>
 304
 305   <tr>
 306     <td valign="top"><a href="../www/command-line-options.html#debug">-debug <em class="option">events</em></a></td>
 307     <td valign="top">display copious debugging information</td>
 308   </tr>
 309
 310   <tr>
 311     <td valign="top"><a href="../www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
 312     <td valign="top">convert cipher pixels to plain</td>
 313   </tr>
 314
 315   <tr>
 316     <td valign="top"><a href="../www/command-line-options.html#define">-define <em class="option">format:option</em></a></td>
 317     <td valign="top">define one or more image format options</td>
 318   </tr>
 319
 320   <tr>
 321     <td valign="top"><a href="../www/command-line-options.html#delay">-delay <em class="option">value</em></a></td>
 322     <td valign="top">display the next image after pausing</td>
 323   </tr>
 324
 325   <tr>
 326     <td valign="top"><a href="../www/command-line-options.html#density">-density <em class="option">geometry</em></a></td>
 327     <td valign="top">horizontal and vertical density of the image</td>
 328   </tr>
 329
 330   <tr>
 331     <td valign="top"><a href="../www/command-line-options.html#depth">-depth <em class="option">value</em></a></td>
 332     <td valign="top">image depth</td>
 333   </tr>
 334
 335   <tr>
 336     <td valign="top"><a href="../www/command-line-options.html#despeckle">-despeckle</a></td>
 337     <td valign="top">reduce the speckles within an image</td>
 338   </tr>
 339
 340   <tr>
 341     <td valign="top"><a href="../www/command-line-options.html#display">-display <em class="option">server</em></a></td>
 342     <td valign="top">get image or font from this X server</td>
 343   </tr>
 344
 345   <tr>
 346     <td valign="top"><a href="../www/command-line-options.html#dispose">-dispose <em class="option">method</em></a></td>
 347     <td valign="top">layer disposal method</td>
 348   </tr>
 349
 350   <tr>
 351     <td valign="top"><a href="../www/command-line-options.html#dither">-dither  <em class="option">method</em></a></td>
 352     <td valign="top">apply error diffusion to image</td>
 353   </tr>
 354
 355   <tr>
 356     <td valign="top"><a href="../www/command-line-options.html#edge">-edge <em class="option">radius</em></a></td>
 357     <td valign="top">apply a filter to detect edges in the image</td>
 358   </tr>
 359
 360   <tr>
 361     <td valign="top"><a href="../www/command-line-options.html#endian">-endian <em class="option">type</em></a></td>
 362     <td valign="top">endianness (MSB or LSB) of the image</td>
 363   </tr>
 364
 365   <tr>
 366     <td valign="top"><a href="../www/command-line-options.html#enhance">-enhance</a></td>
 367     <td valign="top">apply a digital filter to enhance a noisy image</td>
 368   </tr>
 369
 370   <tr>
 371     <td valign="top"><a href="../www/command-line-options.html#equalize">-equalize</a></td>
 372     <td valign="top">perform histogram equalization to an image</td>
 373   </tr>
 374
 375   <tr>
 376     <td valign="top"><a href="../www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
 377     <td valign="top">extract area from image</td>
 378   </tr>
 379
 380   <tr>
 381     <td valign="top"><a href="../www/command-line-options.html#filter">-filter <em class="option">type</em></a></td>
 382     <td valign="top">use this filter when resizing an image</td>
 383   </tr>
 384
 385   <tr>
 386     <td valign="top"><a href="../www/command-line-options.html#flatten">-flatten</a></td>
 387     <td valign="top">flatten a sequence of images</td>
 388   </tr>
 389
 390   <tr>
 391     <td valign="top"><a href="../www/command-line-options.html#flip">-flip</a></td>
 392     <td valign="top">flip image in the vertical direction</td>
 393   </tr>
 394
 395   <tr>
 396     <td valign="top"><a href="../www/command-line-options.html#flop">-flop</a></td>
 397     <td valign="top">flop image in the horizontal direction</td>
 398   </tr>
 399
 400   <tr>
 401     <td valign="top"><a href="../www/command-line-options.html#frame">-frame <em class="option">geometry</em></a></td>
 402     <td valign="top">surround image with an ornamental border</td>
 403   </tr>
 404
 405   <tr>
 406     <td valign="top"><a href="../www/command-line-options.html#fuzz">-fuzz <em class="option">distance</em></a></td>
 407     <td valign="top">colors within this distance are considered equal</td>
 408   </tr>
 409
 410   <tr>
 411     <td valign="top"><a href="../www/command-line-options.html#gamma">-gamma <em class="option">value</em></a></td>
 412     <td valign="top">level of gamma correction</td>
 413   </tr>
 414
 415   <tr>
 416     <td valign="top"><a href="../www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
 417     <td valign="top">preferred size or location of the image</td>
 418   </tr>
 419
 420   <tr>
 421     <td valign="top"><a href="../www/command-line-options.html#gravity">-gravity <em class="option">geometry</em></a></td>
 422     <td valign="top">horizontal and vertical backdrop placement</td>
 423   </tr>
 424
 425   <tr>
 426     <td valign="top"><a href="../www/command-line-options.html#help">-help</a></td>
 427     <td valign="top">print program options</td>
 428   </tr>
 429
 430   <tr>
 431     <td valign="top"><a href="../www/command-line-options.html#identify">-identify</a></td>
 432     <td valign="top">identify the format and characteristics of the image</td>
 433   </tr>
 434
 435   <tr>
 436     <td valign="top"><a href="../www/command-line-options.html#immutable">-immutable <em class="option">type</em></a></td>
 437     <td valign="top">prohibit image edits</td>
 438   </tr>
 439
 440   <tr>
 441     <td valign="top"><a href="../www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
 442     <td valign="top">type of image interlacing scheme</td>
 443   </tr>
 444
 445   <tr>
 446     <td valign="top"><a href="../www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
 447     <td valign="top">pixel color interpolation method</td>
 448   </tr>
 449
 450   <tr>
 451     <td valign="top"><a href="../www/command-line-options.html#label">-label <em class="option">name</em></a></td>
 452     <td valign="top">assign a label to an image</td>
 453   </tr>
 454
 455   <tr>
 456     <td valign="top"><a href="../www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
 457     <td valign="top">pixel cache resource limit</td>
 458   </tr>
 459
 460   <tr>
 461     <td valign="top"><a href="../www/command-line-options.html#log">-log <em class="option">format</em></a></td>
 462     <td valign="top">format of debugging information</td>
 463   </tr>
 464
 465   <tr>
 466     <td valign="top"><a href="../www/command-line-options.html#map">-map <em class="option">filename</em></a></td>
 467     <td valign="top">transform image colors to match this set of colors</td>
 468   </tr>
 469
 470   <tr>
 471     <td valign="top"><a href="../www/command-line-options.html#mattecolor">-mattecolor <em class="option">color</em></a></td>
 472     <td valign="top">frame color</td>
 473   </tr>
 474
 475   <tr>
 476     <td valign="top"><a href="../www/command-line-options.html#monitor">-monitor</a></td>
 477     <td valign="top">monitor progress</td>
 478   </tr>
 479
 480   <tr>
 481     <td valign="top"><a href="../www/command-line-options.html#monochrome">-monochrome</a></td>
 482     <td valign="top">transform image to black and white</td>
 483   </tr>
 484
 485   <tr>
 486     <td valign="top"><a href="../www/command-line-options.html#negate">-negate</a></td>
 487     <td valign="top">replace each pixel with its complementary color </td>
 488   </tr>
 489
 490   <tr>
 491     <td valign="top"><a href="../www/command-line-options.html#normalize">-normalize</a></td>
 492     <td valign="top">transform image to span the full range of colors</td>
 493   </tr>
 494
 495   <tr>
 496     <td valign="top"><a href="../www/command-line-options.html#page">-page <em class="option">geometry</em></a></td>
 497     <td valign="top">size and location of an image canvas (setting)</td>
 498   </tr>
 499
 500   <tr>
 501     <td valign="top"><a href="../www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
 502     <td valign="top">add, delete, or apply an image profile</td>
 503   </tr>
 504
 505   <tr>
 506     <td valign="top"><a href="../www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
 507     <td valign="top">reduce image colors in this colorspace</td>
 508   </tr>
 509
 510   <tr>
 511     <td valign="top"><a href="../www/command-line-options.html#quiet">-quiet</a></td>
 512     <td valign="top">suppress all warning messages</td>
 513   </tr>
 514
 515   <tr>
 516     <td valign="top"><a href="../www/command-line-options.html#raise">-raise <em class="option">value</em></a></td>
 517     <td valign="top">lighten/darken image edges to create a 3-D effect</td>
 518   </tr>
 519
 520   <tr>
 521     <td valign="top"><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
 522     <td valign="top">pay attention to warning messages.</td>
 523   </tr>
 524
 525   <tr>
 526     <td valign="top"><a href="../www/command-line-options.html#remote">-remote <em class="option">command</em></a></td>
 527     <td valign="top">execute a command in an remote display process</td>
 528   </tr>
 529
 530   <tr>
 531     <td valign="top"><a href="../www/command-line-options.html#resample">-resample <em class="option">geometry</em></a></td>
 532     <td valign="top">change the resolution of an image</td>
 533   </tr>
 534
 535   <tr>
 536     <td valign="top"><a href="../www/command-line-options.html#resize">-resize <em class="option">geometry</em></a></td>
 537     <td valign="top">resize the image</td>
 538   </tr>
 539
 540   <tr>
 541     <td valign="top"><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
 542     <td valign="top">settings remain in effect until parenthesis boundary.</td>
 543   </tr>
 544
 545   <tr>
 546     <td valign="top"><a href="../www/command-line-options.html#roll">-roll <em class="option">geometry</em></a></td>
 547     <td valign="top">roll an image vertically or horizontally</td>
 548   </tr>
 549
 550   <tr>
 551     <td valign="top"><a href="../www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
 552     <td valign="top">apply Paeth rotation to the image</td>
 553   </tr>
 554
 555   <tr>
 556     <td valign="top"><a href="../www/command-line-options.html#sample">-sample <em class="option">geometry</em></a></td>
 557     <td valign="top">scale image with pixel sampling</td>
 558   </tr>
 559
 560   <tr>
 561     <td valign="top"><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
 562     <td valign="top">horizontal and vertical sampling factor</td>
 563   </tr>
 564
 565   <tr>
 566     <td valign="top"><a href="../www/command-line-options.html#scene">-scene <em class="option">value</em></a></td>
 567     <td valign="top">image scene number</td>
 568   </tr>
 569
 570   <tr>
 571     <td valign="top"><a href="../www/command-line-options.html#seed">-seed <em class="option">value</em></a></td>
 572     <td valign="top">seed a new sequence of pseudo-random numbers</td>
 573   </tr>
 574
 575   <tr>
 576     <td valign="top"><a href="../www/command-line-options.html#segment">-segment <em class="option">values</em></a></td>
 577     <td valign="top">segment an image</td>
 578   </tr>
 579
 580   <tr>
 581     <td valign="top"><a href="../www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
 582     <td valign="top">set an image attribute</td>
 583   </tr>
 584
 585   <tr>
 586     <td valign="top"><a href="../www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
 587     <td valign="top">sharpen the image</td>
 588   </tr>
 589
 590   <tr>
 591     <td valign="top"><a href="../www/command-line-options.html#size">-size <em class="option">geometry</em></a></td>
 592     <td valign="top">width and height of image</td>
 593   </tr>
 594
 595   <tr>
 596     <td valign="top"><a href="../www/command-line-options.html#strip">-strip</a></td>
 597     <td valign="top">strip image of all profiles and comments</td>
 598   </tr>
 599
 600   <tr>
 601     <td valign="top"><a href="../www/command-line-options.html#thumbnail">-thumbnail <em class="option">geometry</em></a></td>
 602     <td valign="top">create a thumbnail of the image</td>
 603   </tr>
 604
 605   <tr>
 606     <td valign="top"><a href="../www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
 607     <td valign="top">transparent color</td>
 608   </tr>
 609
 610   <tr>
 611     <td valign="top"><a href="../www/command-line-options.html#black-threshold">-black-threshold <em class="option">value</em></a></td>
 612     <td valign="top">force all pixels below the threshold into black</td>
 613   </tr>
 614
 615   <tr>
 616     <td valign="top"><a href="../www/command-line-options.html#trim">-trim</a></td>
 617     <td valign="top">trim image edges</td>
 618   </tr>
 619
 620   <tr>
 621     <td valign="top"><a href="../www/command-line-options.html#update">-update <em class="option">seconds</em></a></td>
 622     <td valign="top">detect when image file is modified and redisplay</td>
 623   </tr>
 624
 625   <tr>
 626     <td valign="top"><a href="../www/command-line-options.html#verbose">-verbose</a></td>
 627     <td valign="top">print detailed information about the image</td>
 628   </tr>
 629
 630   <tr>
 631     <td valign="top"><a href="../www/command-line-options.html#version">-version</a></td>
 632     <td valign="top">print version information</td>
 633   </tr>
 634
 635   <tr>
 636     <td valign="top"><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
 637     <td valign="top">access method for pixels outside the boundaries of the image</td>
 638   </tr>
 639
 640   <tr>
 641     <td valign="top"><a href="../www/command-line-options.html#visual">-visual</a></td>
 642     <td valign="top">display image using this visual type</td>
 643   </tr>
 644
 645   <tr>
 646     <td valign="top"><a href="../www/command-line-options.html#write">-window <em class="option">id</em></a></td>
 647     <td valign="top">display image to background of this window</td>
 648   </tr>
 649
 650   <tr>
 651     <td valign="top"><a href="../www/command-line-options.html#write">-window-group <em class="option">id</em></a></td>
 652     <td valign="top">exit program when this window id is destroyed</td>
 653   </tr>
 654
 655   <tr>
 656     <td valign="top"><a href="../www/command-line-options.html#write">-write <em class="option">filename</em></a></td>
 657     <td valign="top">write images to this file</td>
 658   </tr>
 659   </tbody>
 660 </table>
 661
 662 </div>
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