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 157 <div class="main">\r
 158 \r
 159 <p class="navigation-index">[<a href="#usage">Example Usage</a> &bull; <a href="#options">Option Summary</a>]</p>
 160
 161 <div class="doc-section">
 162 <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>
 163 </div>
 164
 165 <h2><a name="usage"></a>Example Usage</h2>
 166 <div class="doc-section">
 167
 168 <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>
 169
 170 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>display rose.jpg</span></p>
 171 <p>To tile a slate texture onto the root window, use:</p>
 172
 173 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>display -size 1280x1024 -window root slate.png</span></p>
 174 <p>To display a visual image directory of all your JPEG images, use:</p>
 175
 176 <p class='crt'><span class="crtprompt"> $magick&gt; </span><span class='crtin'>display 'vid:*.jpg'</span></p>
 177 <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>
 178
 179 </div>
 180
 181 <h2><a name="options"></a>Option Summary</h2>
 182 <div class="doc-section">
 183
 184 <p>The <kbd>display</kbd> command recognizes these options.  Click on an option to get more details about how that option works.</p>
 185
 186 <table class="doc">
 187   <tbody>
 188   <tr>
 189     <th align="left">Option</th>
 190     <th align="left">Description</th>
 191   </tr>
 192
 193   <tr>
 194     <td valign="top"><a href="../www/command-line-options.html#alpha">-alpha</a></td>
 195     <td valign="top">on, activate, off, deactivate, set, opaque, copy",
 196 transparent, extract, background, or shape the alpha channel</td>
 197   </tr>
 198
 199   <tr>
 200     <td valign="top"><a href="../www/command-line-options.html#antialias">-antialias</a></td>
 201     <td valign="top">remove pixel-aliasing</td>
 202   </tr>
 203
 204   <tr>
 205     <td valign="top"><a href="../www/command-line-options.html#authenticate">-authenticate <em class="option">value</em></a></td>
 206     <td valign="top">decrypt image with this password</td>
 207   </tr>
 208
 209   <tr>
 210     <td valign="top"><a href="../www/command-line-options.html#backdrop">-backdrop</a></td>
 211     <td valign="top">display image centered on a backdrop</td>
 212   </tr>
 213
 214   <tr>
 215     <td valign="top"><a href="../www/command-line-options.html#background">-background <em class="option">color</em></a></td>
 216     <td valign="top">background color</td>
 217   </tr>
 218
 219   <tr>
 220     <td valign="top"><a href="../www/command-line-options.html#border">-border <em class="option">geometry</em></a></td>
 221     <td valign="top">surround image with a border of color</td>
 222   </tr>
 223
 224   <tr>
 225     <td valign="top"><a href="../www/command-line-options.html#bordercolor">-bordercolor <em class="option">color</em></a></td>
 226     <td valign="top">border color</td>
 227   </tr>
 228
 229   <tr>
 230     <td valign="top"><a href="../www/command-line-options.html#channel">-channel <em class="option">type</em></a></td>
 231     <td valign="top">apply option to select image channels</td>
 232   </tr>
 233
 234   <tr>
 235     <td valign="top"><a href="../www/command-line-options.html#clip">-clip</a></td>
 236     <td valign="top">clip along the first path from the 8BIM profile</td>
 237   </tr>
 238
 239   <tr>
 240     <td valign="top"><a href="../www/command-line-options.html#clip-path">-clip-path <em class="option">id</em></a></td>
 241     <td valign="top">clip along a named path from the 8BIM profile</td>
 242   </tr>
 243
 244   <tr>
 245     <td valign="top"><a href="../www/command-line-options.html#coalesce">-coalesce</a></td>
 246     <td valign="top">merge a sequence of images</td>
 247   </tr>
 248
 249   <tr>
 250     <td valign="top"><a href="../www/command-line-options.html#colormap">-colormap <em class="option">type</em></a></td>
 251     <td valign="top">Shared or Private</td>
 252   </tr>
 253
 254   <tr>
 255     <td valign="top"><a href="../www/command-line-options.html#colors">-colors <em class="option">value</em></a></td>
 256     <td valign="top">preferred number of colors in the image</td>
 257   </tr>
 258
 259   <tr>
 260     <td valign="top"><a href="../www/command-line-options.html#colorspace">-colorspace <em class="option">type</em></a></td>
 261     <td valign="top">set image colorspace</td>
 262   </tr>
 263
 264   <tr>
 265     <td valign="top"><a href="../www/command-line-options.html#comment">-comment <em class="option">string</em></a></td>
 266     <td valign="top">annotate image with comment</td>
 267   </tr>
 268
 269   <tr>
 270     <td valign="top"><a href="../www/command-line-options.html#compress">-compress <em class="option">type</em></a></td>
 271     <td valign="top">image compression type</td>
 272   </tr>
 273
 274   <tr>
 275     <td valign="top"><a href="../www/command-line-options.html#contrast">-contrast</a></td>
 276     <td valign="top">enhance or reduce the image contrast</td>
 277   </tr>
 278
 279   <tr>
 280     <td valign="top"><a href="../www/command-line-options.html#crop">-crop <em class="option">geometry</em></a></td>
 281     <td valign="top">preferred size and location of the cropped image</td>
 282   </tr>
 283
 284   <tr>
 285     <td valign="top"><a href="../www/command-line-options.html#debug">-debug <em class="option">events</em></a></td>
 286     <td valign="top">display copious debugging information</td>
 287   </tr>
 288
 289   <tr>
 290     <td valign="top"><a href="../www/command-line-options.html#decipher">-decipher <em class="option">filename</em></a></td>
 291     <td valign="top">convert cipher pixels to plain</td>
 292   </tr>
 293
 294   <tr>
 295     <td valign="top"><a href="../www/command-line-options.html#define">-define <em class="option">format:option</em></a></td>
 296     <td valign="top">define one or more image format options</td>
 297   </tr>
 298
 299   <tr>
 300     <td valign="top"><a href="../www/command-line-options.html#delay">-delay <em class="option">value</em></a></td>
 301     <td valign="top">display the next image after pausing</td>
 302   </tr>
 303
 304   <tr>
 305     <td valign="top"><a href="../www/command-line-options.html#density">-density <em class="option">geometry</em></a></td>
 306     <td valign="top">horizontal and vertical density of the image</td>
 307   </tr>
 308
 309   <tr>
 310     <td valign="top"><a href="../www/command-line-options.html#depth">-depth <em class="option">value</em></a></td>
 311     <td valign="top">image depth</td>
 312   </tr>
 313
 314   <tr>
 315     <td valign="top"><a href="../www/command-line-options.html#despeckle">-despeckle</a></td>
 316     <td valign="top">reduce the speckles within an image</td>
 317   </tr>
 318
 319   <tr>
 320     <td valign="top"><a href="../www/command-line-options.html#display">-display <em class="option">server</em></a></td>
 321     <td valign="top">get image or font from this X server</td>
 322   </tr>
 323
 324   <tr>
 325     <td valign="top"><a href="../www/command-line-options.html#dispose">-dispose <em class="option">method</em></a></td>
 326     <td valign="top">layer disposal method</td>
 327   </tr>
 328
 329   <tr>
 330     <td valign="top"><a href="../www/command-line-options.html#dither">-dither  <em class="option">method</em></a></td>
 331     <td valign="top">apply error diffusion to image</td>
 332   </tr>
 333
 334   <tr>
 335     <td valign="top"><a href="../www/command-line-options.html#edge">-edge <em class="option">radius</em></a></td>
 336     <td valign="top">apply a filter to detect edges in the image</td>
 337   </tr>
 338
 339   <tr>
 340     <td valign="top"><a href="../www/command-line-options.html#endian">-endian <em class="option">type</em></a></td>
 341     <td valign="top">endianness (MSB or LSB) of the image</td>
 342   </tr>
 343
 344   <tr>
 345     <td valign="top"><a href="../www/command-line-options.html#enhance">-enhance</a></td>
 346     <td valign="top">apply a digital filter to enhance a noisy image</td>
 347   </tr>
 348
 349   <tr>
 350     <td valign="top"><a href="../www/command-line-options.html#equalize">-equalize</a></td>
 351     <td valign="top">perform histogram equalization to an image</td>
 352   </tr>
 353
 354   <tr>
 355     <td valign="top"><a href="../www/command-line-options.html#extract">-extract <em class="option">geometry</em></a></td>
 356     <td valign="top">extract area from image</td>
 357   </tr>
 358
 359   <tr>
 360     <td valign="top"><a href="../www/command-line-options.html#filter">-filter <em class="option">type</em></a></td>
 361     <td valign="top">use this filter when resizing an image</td>
 362   </tr>
 363
 364   <tr>
 365     <td valign="top"><a href="../www/command-line-options.html#flatten">-flatten</a></td>
 366     <td valign="top">flatten a sequence of images</td>
 367   </tr>
 368
 369   <tr>
 370     <td valign="top"><a href="../www/command-line-options.html#flip">-flip</a></td>
 371     <td valign="top">flip image in the vertical direction</td>
 372   </tr>
 373
 374   <tr>
 375     <td valign="top"><a href="../www/command-line-options.html#flop">-flop</a></td>
 376     <td valign="top">flop image in the horizontal direction</td>
 377   </tr>
 378
 379   <tr>
 380     <td valign="top"><a href="../www/command-line-options.html#frame">-frame <em class="option">geometry</em></a></td>
 381     <td valign="top">surround image with an ornamental border</td>
 382   </tr>
 383
 384   <tr>
 385     <td valign="top"><a href="../www/command-line-options.html#fuzz">-fuzz <em class="option">distance</em></a></td>
 386     <td valign="top">colors within this distance are considered equal</td>
 387   </tr>
 388
 389   <tr>
 390     <td valign="top"><a href="../www/command-line-options.html#gamma">-gamma <em class="option">value</em></a></td>
 391     <td valign="top">level of gamma correction</td>
 392   </tr>
 393
 394   <tr>
 395     <td valign="top"><a href="../www/command-line-options.html#geometry">-geometry <em class="option">geometry</em></a></td>
 396     <td valign="top">preferred size or location of the image</td>
 397   </tr>
 398
 399   <tr>
 400     <td valign="top"><a href="../www/command-line-options.html#gravity">-gravity <em class="option">geometry</em></a></td>
 401     <td valign="top">horizontal and vertical backdrop placement</td>
 402   </tr>
 403
 404   <tr>
 405     <td valign="top"><a href="../www/command-line-options.html#help">-help</a></td>
 406     <td valign="top">print program options</td>
 407   </tr>
 408
 409   <tr>
 410     <td valign="top"><a href="../www/command-line-options.html#identify">-identify</a></td>
 411     <td valign="top">identify the format and characteristics of the image</td>
 412   </tr>
 413
 414   <tr>
 415     <td valign="top"><a href="../www/command-line-options.html#immutable">-immutable <em class="option">type</em></a></td>
 416     <td valign="top">prohibit image edits</td>
 417   </tr>
 418
 419   <tr>
 420     <td valign="top"><a href="../www/command-line-options.html#interlace">-interlace <em class="option">type</em></a></td>
 421     <td valign="top">type of image interlacing scheme</td>
 422   </tr>
 423
 424   <tr>
 425     <td valign="top"><a href="../www/command-line-options.html#interpolate">-interpolate <em class="option">method</em></a></td>
 426     <td valign="top">pixel color interpolation method</td>
 427   </tr>
 428
 429   <tr>
 430     <td valign="top"><a href="../www/command-line-options.html#label">-label <em class="option">name</em></a></td>
 431     <td valign="top">assign a label to an image</td>
 432   </tr>
 433
 434   <tr>
 435     <td valign="top"><a href="../www/command-line-options.html#limit">-limit <em class="option">type value</em></a></td>
 436     <td valign="top">pixel cache resource limit</td>
 437   </tr>
 438
 439   <tr>
 440     <td valign="top"><a href="../www/command-line-options.html#log">-log <em class="option">format</em></a></td>
 441     <td valign="top">format of debugging information</td>
 442   </tr>
 443
 444   <tr>
 445     <td valign="top"><a href="../www/command-line-options.html#map">-map <em class="option">filename</em></a></td>
 446     <td valign="top">transform image colors to match this set of colors</td>
 447   </tr>
 448
 449   <tr>
 450     <td valign="top"><a href="../www/command-line-options.html#mattecolor">-mattecolor <em class="option">color</em></a></td>
 451     <td valign="top">frame color</td>
 452   </tr>
 453
 454   <tr>
 455     <td valign="top"><a href="../www/command-line-options.html#monitor">-monitor</a></td>
 456     <td valign="top">monitor progress</td>
 457   </tr>
 458
 459   <tr>
 460     <td valign="top"><a href="../www/command-line-options.html#monochrome">-monochrome</a></td>
 461     <td valign="top">transform image to black and white</td>
 462   </tr>
 463
 464   <tr>
 465     <td valign="top"><a href="../www/command-line-options.html#negate">-negate</a></td>
 466     <td valign="top">replace every pixel with its complementary color </td>
 467   </tr>
 468
 469   <tr>
 470     <td valign="top"><a href="../www/command-line-options.html#normalize">-normalize</a></td>
 471     <td valign="top">transform image to span the full range of colors</td>
 472   </tr>
 473
 474   <tr>
 475     <td valign="top"><a href="../www/command-line-options.html#page">-page <em class="option">geometry</em></a></td>
 476     <td valign="top">size and location of an image canvas (setting)</td>
 477   </tr>
 478
 479   <tr>
 480     <td valign="top"><a href="../www/command-line-options.html#profile">-profile <em class="option">filename</em></a></td>
 481     <td valign="top">add, delete, or apply an image profile</td>
 482   </tr>
 483
 484   <tr>
 485     <td valign="top"><a href="../www/command-line-options.html#quantize">-quantize <em class="option">colorspace</em></a></td>
 486     <td valign="top">reduce image colors in this colorspace</td>
 487   </tr>
 488
 489   <tr>
 490     <td valign="top"><a href="../www/command-line-options.html#quiet">-quiet</a></td>
 491     <td valign="top">suppress all warning messages</td>
 492   </tr>
 493
 494   <tr>
 495     <td valign="top"><a href="../www/command-line-options.html#raise">-raise <em class="option">value</em></a></td>
 496     <td valign="top">lighten/darken image edges to create a 3-D effect</td>
 497   </tr>
 498
 499   <tr>
 500     <td valign="top"><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td>
 501     <td valign="top">pay attention to warning messages.</td>
 502   </tr>
 503
 504   <tr>
 505     <td valign="top"><a href="../www/command-line-options.html#remote">-remote <em class="option">command</em></a></td>
 506     <td valign="top">execute a command in an remote display process</td>
 507   </tr>
 508
 509   <tr>
 510     <td valign="top"><a href="../www/command-line-options.html#resample">-resample <em class="option">geometry</em></a></td>
 511     <td valign="top">change the resolution of an image</td>
 512   </tr>
 513
 514   <tr>
 515     <td valign="top"><a href="../www/command-line-options.html#resize">-resize <em class="option">geometry</em></a></td>
 516     <td valign="top">resize the image</td>
 517   </tr>
 518
 519   <tr>
 520     <td valign="top"><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
 521     <td valign="top">settings remain in effect until parenthesis boundary.</td>
 522   </tr>
 523
 524   <tr>
 525     <td valign="top"><a href="../www/command-line-options.html#roll">-roll <em class="option">geometry</em></a></td>
 526     <td valign="top">roll an image vertically or horizontally</td>
 527   </tr>
 528
 529   <tr>
 530     <td valign="top"><a href="../www/command-line-options.html#rotate">-rotate <em class="option">degrees</em></a></td>
 531     <td valign="top">apply Paeth rotation to the image</td>
 532   </tr>
 533
 534   <tr>
 535     <td valign="top"><a href="../www/command-line-options.html#sample">-sample <em class="option">geometry</em></a></td>
 536     <td valign="top">scale image with pixel sampling</td>
 537   </tr>
 538
 539   <tr>
 540     <td valign="top"><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <em class="option">geometry</em></a></td>
 541     <td valign="top">horizontal and vertical sampling factor</td>
 542   </tr>
 543
 544   <tr>
 545     <td valign="top"><a href="../www/command-line-options.html#scene">-scene <em class="option">value</em></a></td>
 546     <td valign="top">image scene number</td>
 547   </tr>
 548
 549   <tr>
 550     <td valign="top"><a href="../www/command-line-options.html#seed">-seed <em class="option">value</em></a></td>
 551     <td valign="top">seed a new sequence of pseudo-random numbers</td>
 552   </tr>
 553
 554   <tr>
 555     <td valign="top"><a href="../www/command-line-options.html#segment">-segment <em class="option">values</em></a></td>
 556     <td valign="top">segment an image</td>
 557   </tr>
 558
 559   <tr>
 560     <td valign="top"><a href="../www/command-line-options.html#set">-set <em class="option">attribute value</em></a></td>
 561     <td valign="top">set an image attribute</td>
 562   </tr>
 563
 564   <tr>
 565     <td valign="top"><a href="../www/command-line-options.html#sharpen">-sharpen <em class="option">geometry</em></a></td>
 566     <td valign="top">sharpen the image</td>
 567   </tr>
 568
 569   <tr>
 570     <td valign="top"><a href="../www/command-line-options.html#size">-size <em class="option">geometry</em></a></td>
 571     <td valign="top">width and height of image</td>
 572   </tr>
 573
 574   <tr>
 575     <td valign="top"><a href="../www/command-line-options.html#strip">-strip</a></td>
 576     <td valign="top">strip image of all profiles and comments</td>
 577   </tr>
 578
 579   <tr>
 580     <td valign="top"><a href="../www/command-line-options.html#transparent-color">-transparent-color <em class="option">color</em></a></td>
 581     <td valign="top">transparent color</td>
 582   </tr>
 583
 584   <tr>
 585     <td valign="top"><a href="../www/command-line-options.html#black-threshold">-black-threshold <em class="option">value</em></a></td>
 586     <td valign="top">force all pixels below the threshold into black</td>
 587   </tr>
 588
 589   <tr>
 590     <td valign="top"><a href="../www/command-line-options.html#trim">-trim</a></td>
 591     <td valign="top">trim image edges</td>
 592   </tr>
 593
 594   <tr>
 595     <td valign="top"><a href="../www/command-line-options.html#update">-update <em class="option">seconds</em></a></td>
 596     <td valign="top">detect when image file is modified and redisplay</td>
 597   </tr>
 598
 599   <tr>
 600     <td valign="top"><a href="../www/command-line-options.html#verbose">-verbose</a></td>
 601     <td valign="top">print detailed information about the image</td>
 602   </tr>
 603
 604   <tr>
 605     <td valign="top"><a href="../www/command-line-options.html#version">-version</a></td>
 606     <td valign="top">print version information</td>
 607   </tr>
 608
 609   <tr>
 610     <td valign="top"><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <em class="option">method</em></a></td>
 611     <td valign="top">access method for pixels outside the boundaries of the image</td>
 612   </tr>
 613
 614   <tr>
 615     <td valign="top"><a href="../www/command-line-options.html#visual">-visual</a></td>
 616     <td valign="top">display image using this visual type</td>
 617   </tr>
 618
 619   <tr>
 620     <td valign="top"><a href="../www/command-line-options.html#write">-window <em class="option">id</em></a></td>
 621     <td valign="top">display image to background of this window</td>
 622   </tr>
 623
 624   <tr>
 625     <td valign="top"><a href="../www/command-line-options.html#write">-window-group <em class="option">id</em></a></td>
 626     <td valign="top">exit program when this window id is destroyed</td>
 627   </tr>
 628
 629   <tr>
 630     <td valign="top"><a href="../www/command-line-options.html#write">-write <em class="option">filename</em></a></td>
 631     <td valign="top">write images to this file</td>
 632   </tr>
 633   </tbody>
 634 </table>
 635
 636 </div>
 637 \r
 638 </div>\r
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