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  11   <title>Command-line Tools: Magick @ ImageMagick</title>
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  14   <meta name="description" content="ImageMagick® is a software suite to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, JPEG-2000, GIF, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves."/>
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  58 <div class="container">
  59 <div class="magick-header">
  60 <p class="lead magick-description">Use the <code>magick</code> program to convert between image formats as well as resize an image, blur, crop, despeckle, dither, draw on, flip, join, re-sample, and much more.   See <a href="command-line-processing.html">Command Line Processing</a> for advice on how to structure your <code>convert</code> command or see below for example usages of the command.</p>
  61
  62 <p>We list a few examples of the <code>magick</code> command here to illustrate its usefulness and ease of use.  To get started, lets convert an image in the JPEG format to PNG:</p>
  63
  64 <pre>
  65 magick rose.jpg rose.png
  66 </pre>
  67
  68 <p>Next, we reduce the image size before it is written to the PNG format:</p>
  69
  70 <pre>
  71 magick rose.jpg -resize 50% rose.png
  72 </pre>
  73
  74 <ul>
  75   <a href="../images/rose.jpg">
  76   <img src="../images/rose.jpg" width="70" height="46" alt="rose" />
  77   </a>
  78   <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" />
  79   <a href="../images/rose.png">
  80   <img style="margin-top:11px; margin-bottom:12px;" src="../images/rose.png" width="35" height="23" alt="rose" />
  81   </a>
  82 </ul>
  83
  84 <p>You can combine multiple image-processing operations to produce complex results:</p>
  85
  86 <pre>
  87 magick -size 320x85 canvas:none -font Bookman-DemiItalic -pointsize 72 \
  88   -draw "text 25,60 \'Magick\'" -channel RGBA -blur 0x6 -fill darkred -stroke magenta \
  89   -draw "text 20,55 \'Magick\'" fuzzy-magick.png
  90 </pre>
  91
  92 <ul>
  93   <a href="../images/fuzzy-magick.png"><img src="../images/fuzzy-magick.png" width="320" height="85" alt="fuzzy-magick" /></a>
  94 </ul>
  95
  96 <p>or here we resize an image with improved quality:</p>
  97
  98 <pre>
  99 magick input.png -colorspace RGB +sigmoidal-contrast 11.6933 \
 100   -define filter:filter=Sinc -define filter:window=Jinc -define filter:lobes=3 \
 101   -resize 400% -sigmoidal-contrast 11.6933 -colorspace sRGB output.png');
 102 </pre>
 103
 104 <p>Utilize other command-line <a href="command-line-tools.html">tools</a> from the <code>magick</code> tool.  To invoke this functionality, simply create a symbolic link to the <code>magick</code> tool or specify the tool you want to use as the first argument.  These two methods are equivalent:</p>
 105
 106 <pre>
 107 ln -s magick convert
 108 convert rose.jpg rose.png
 109 magick convert rose.jpg rose.png
 110 </pre>
 111
 112 <p>You can find additional examples of using <code>magick</code> in <a href="https://www.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>.</p>
 113
 114 <h2 class="magick-header"><a id="options"></a>Option Summary</h2>
 115
 116 <p>The <code>magick</code> command recognizes these options.  Click on an option to get more details about how that option works.</p>
 117
 118 <div class="table-responsive">
 119 <table class="table table-condensed table-striped">
 120   <tr>
 121     <td><a href="command-line-options.html#adaptive-blur">-adaptive-blur <var>geometry</var></a></td>
 122     <td>adaptively blur pixels; decrease effect near edges</td>
 123   </tr>
 124
 125   <tr>
 126     <td><a href="command-line-options.html#adaptive-resize">-adaptive-resize <var>geometry</var></a></td>
 127     <td>adaptively resize image with data dependent triangulation.</td>
 128   </tr>
 129
 130   <tr>
 131     <td><a href="command-line-options.html#adaptive-sharpen">-adaptive-sharpen <var>geometry</var></a></td>
 132     <td>adaptively sharpen pixels; increase effect near edges</td>
 133   </tr>
 134
 135   <tr>
 136     <td><a href="command-line-options.html#adjoin">-adjoin</a></td>
 137     <td>join images into a single multi-image file</td>
 138   </tr>
 139
 140   <tr>
 141     <td><a href="command-line-options.html#affine">-affine <var>matrix</var></a></td>
 142     <td>affine transform matrix</td>
 143   </tr>
 144
 145   <tr>
 146     <td><a href="command-line-options.html#alpha">-alpha</a></td>
 147     <td>on, activate, off, deactivate, set, opaque, copy",
 148 transparent, extract, background, or shape the alpha channel</td>
 149   </tr>
 150
 151   <tr>
 152     <td><a href="command-line-options.html#annotate">-annotate <var>geometry text</var></a></td>
 153     <td>annotate the image with text</td>
 154   </tr>
 155
 156   <tr>
 157     <td><a href="command-line-options.html#antialias">-antialias</a></td>
 158     <td>remove pixel-aliasing</td>
 159   </tr>
 160
 161   <tr>
 162     <td><a href="command-line-options.html#append">-append</a></td>
 163     <td>append an image sequence</td>
 164   </tr>
 165
 166   <tr>
 167     <td><a href="command-line-options.html#authenticate">-authenticate <var>value</var></a></td>
 168     <td>decipher image with this password</td>
 169   </tr>
 170
 171   <tr>
 172     <td><a href="command-line-options.html#auto-gamma">-auto-gamma</a></td>
 173     <td>automagically adjust gamma level of image</td>
 174   </tr>
 175
 176   <tr>
 177     <td><a href="command-line-options.html#auto-level">-auto-level</a></td>
 178     <td>automagically adjust color levels of image</td>
 179   </tr>
 180
 181   <tr>
 182     <td><a href="command-line-options.html#auto-orient">-auto-orient</a></td>
 183     <td>automagically orient image</td>
 184   </tr>
 185
 186   <tr>
 187     <td><a href="command-line-options.html#background">-background <var>color</var></a></td>
 188     <td>background color</td>
 189   </tr>
 190
 191   <tr>
 192     <td><a href="command-line-options.html#bench">-bench <var>iterations</var></a></td>
 193     <td>measure performance</td>
 194   </tr>
 195
 196   <tr>
 197     <td><a href="command-line-options.html#bias">-bias <var>value</var></a></td>
 198     <td>add bias when convolving an image</td>
 199   </tr>
 200
 201   <tr>
 202     <td><a href="command-line-options.html#black-threshold">-black-threshold <var>value</var></a></td>
 203     <td>force all pixels below the threshold into black</td>
 204   </tr>
 205
 206   <tr>
 207     <td><a href="command-line-options.html#blue-primary">-blue-primary <var>point</var></a></td>
 208     <td>chromaticity blue primary point</td>
 209   </tr>
 210
 211   <tr>
 212     <td><a href="command-line-options.html#blue-shift">-blue-shift <var>factor</var></a></td>
 213     <td>simulate a scene at nighttime in the moonlight</td>
 214   </tr>
 215
 216   <tr>
 217     <td><a href="command-line-options.html#blur">-blur <var>geometry</var></a></td>
 218     <td>reduce image noise and reduce detail levels</td>
 219   </tr>
 220
 221   <tr>
 222     <td><a href="command-line-options.html#border">-border <var>geometry</var></a></td>
 223     <td>surround image with a border of color</td>
 224   </tr>
 225
 226   <tr>
 227     <td><a href="command-line-options.html#bordercolor">-bordercolor <var>color</var></a></td>
 228     <td>border color</td>
 229   </tr>
 230
 231   <tr>
 232     <td><a href="command-line-options.html#brightness-contrast">-brightness-contrast <var>geometry</var></a></td>
 233     <td>improve brightness / contrast of the image</td>
 234   </tr>
 235
 236   <tr>
 237     <td><a href="command-line-options.html#canny">-canny <var>geometry</var></a></td>
 238     <td>use a multi-stage algorithm to detect a wide range of edges in the image</td>
 239   </tr>
 240
 241   <tr>
 242     <td><a href="command-line-options.html#caption">-caption <var>string</var></a></td>
 243     <td>assign a caption to an image</td>
 244   </tr>
 245
 246   <tr>
 247     <td><a href="command-line-options.html#cdl">-cdl <var>filename</var></a></td>
 248     <td>color correct with a color decision list</td>
 249   </tr>
 250
 251   <tr>
 252     <td><a href="command-line-options.html#channel">-channel <var>type</var></a></td>
 253     <td>apply option to select image channels</td>
 254   </tr>
 255
 256   <tr>
 257     <td><a href="command-line-options.html#charcoal">-charcoal <var>radius</var></a></td>
 258     <td>simulate a charcoal drawing</td>
 259   </tr>
 260
 261   <tr>
 262     <td><a href="command-line-options.html#chop">-chop <var>geometry</var></a></td>
 263     <td>remove pixels from the image interior</td>
 264   </tr>
 265
 266   <tr>
 267     <td><a href="command-line-options.html#clamp">-clamp</a></td>
 268     <td>set each pixel whose value is below zero to zero and any the pixel whose value is above the quantum range to the quantum range (e.g. 65535) otherwise the pixel value remains unchanged.</td>
 269   </tr>
 270
 271   <tr>
 272     <td><a href="command-line-options.html#clip">-clip</a></td>
 273     <td>clip along the first path from the 8BIM profile</td>
 274   </tr>
 275
 276   <tr>
 277     <td><a href="command-line-options.html#clip-mask">-clip-mask</a> <var>filename</var></td>
 278     <td>associate clip mask with the image</td>
 279   </tr>
 280
 281   <tr>
 282     <td><a href="command-line-options.html#clip-path">-clip-path <var>id</var></a></td>
 283     <td>clip along a named path from the 8BIM profile</td>
 284   </tr>
 285
 286   <tr>
 287     <td><a href="command-line-options.html#clone">-clone <var>index</var></a></td>
 288     <td>clone an image</td>
 289   </tr>
 290
 291   <tr>
 292     <td><a href="command-line-options.html#clut">-clut</a></td>
 293     <td>apply a color lookup table to the image</td>
 294   </tr>
 295
 296   <tr>
 297     <td><a href="command-line-options.html#connected-components">-connected-components <var>connectivity</var></a></td>
 298     <td>connected-components uniquely labeled, choose from 4 or 8 way connectivity</td>
 299   </tr>
 300
 301   <tr>
 302     <td><a href="command-line-options.html#contrast-stretch">-contrast-stretch <var>geometry</var></a></td>
 303     <td>improve the contrast in an image by `stretching' the range of intensity value</td>
 304   </tr>
 305
 306   <tr>
 307     <td><a href="command-line-options.html#coalesce">-coalesce</a></td>
 308     <td>merge a sequence of images</td>
 309   </tr>
 310
 311   <tr>
 312     <td><a href="command-line-options.html#colorize">-colorize <var>value</var></a></td>
 313     <td>colorize the image with the fill color</td>
 314   </tr>
 315
 316   <tr>
 317     <td><a href="command-line-options.html#color-matrix">-color-matrix <var>matrix</var></a></td>
 318     <td>apply color correction to the image.</td>
 319   </tr>
 320
 321   <tr>
 322     <td><a href="command-line-options.html#colors">-colors <var>value</var></a></td>
 323     <td>preferred number of colors in the image</td>
 324   </tr>
 325
 326   <tr>
 327     <td><a href="command-line-options.html#colorspace">-colorspace <var>type</var></a></td>
 328     <td>set image colorspace</td>
 329   </tr>
 330
 331   <tr>
 332     <td><a href="command-line-options.html#combine">-combine</a></td>
 333     <td>combine a sequence of images</td>
 334   </tr>
 335
 336   <tr>
 337     <td><a href="command-line-options.html#comment">-comment <var>string</var></a></td>
 338     <td>annotate image with comment</td>
 339   </tr>
 340
 341   <tr>
 342     <td><a href="command-line-options.html#compare">-compare</a></td>
 343     <td>compare image</td>
 344   </tr>
 345
 346   <tr>
 347     <td><a href="command-line-options.html#complex">-complex<var>operator</var></a></td>
 348     <td>perform complex mathematics on an image sequence</td>
 349   </tr>
 350
 351   <tr>
 352     <td><a href="command-line-options.html#compose">-compose <var>operator</var></a></td>
 353     <td>set image composite operator</td>
 354   </tr>
 355
 356   <tr>
 357     <td><a href="command-line-options.html#composite">-composite</a></td>
 358     <td>composite image</td>
 359   </tr>
 360
 361   <tr>
 362     <td><a href="command-line-options.html#compress">-compress <var>type</var></a></td>
 363     <td>image compression type</td>
 364   </tr>
 365
 366   <tr>
 367     <td><a href="command-line-options.html#contrast">-contrast</a></td>
 368     <td>enhance or reduce the image contrast</td>
 369   </tr>
 370
 371   <tr>
 372     <td><a href="command-line-options.html#convolve">-convolve <var>coefficients</var></a></td>
 373     <td>apply a convolution kernel to the image</td>
 374   </tr>
 375
 376   <tr>
 377     <td><a href="command-line-options.html#copy">-copy <var>geometry</var> <var>offset</var></a></td>
 378     <td>copy pixels from one area of an image to another</td>
 379   </tr>
 380
 381   <tr>
 382     <td><a href="command-line-options.html#crop">-crop <var>geometry</var></a></td>
 383     <td>crop the image</td>
 384   </tr>
 385
 386   <tr>
 387     <td><a href="command-line-options.html#cycle">-cycle <var>amount</var></a></td>
 388     <td>cycle the image colormap</td>
 389   </tr>
 390
 391   <tr>
 392     <td><a href="command-line-options.html#decipher">-decipher <var>filename</var></a></td>
 393     <td>convert cipher pixels to plain</td>
 394   </tr>
 395
 396   <tr>
 397     <td><a href="command-line-options.html#debug">-debug <var>events</var></a></td>
 398     <td>display copious debugging information</td>
 399   </tr>
 400
 401   <tr>
 402     <td><a href="command-line-options.html#define">-define <var>format:option</var></a></td>
 403     <td>define one or more image format options</td>
 404   </tr>
 405
 406   <tr>
 407     <td><a href="command-line-options.html#deconstruct">-deconstruct</a></td>
 408     <td>break down an image sequence into constituent parts</td>
 409   </tr>
 410
 411   <tr>
 412     <td><a href="command-line-options.html#delay">-delay <var>value</var></a></td>
 413     <td>display the next image after pausing</td>
 414   </tr>
 415
 416   <tr>
 417     <td><a href="command-line-options.html#delete">-delete <var>index</var></a></td>
 418     <td>delete the image from the image sequence</td>
 419   </tr>
 420
 421   <tr>
 422     <td><a href="command-line-options.html#density">-density <var>geometry</var></a></td>
 423     <td>horizontal and vertical density of the image</td>
 424   </tr>
 425
 426   <tr>
 427     <td><a href="command-line-options.html#depth">-depth <var>value</var></a></td>
 428     <td>image depth</td>
 429   </tr>
 430
 431   <tr>
 432     <td><a href="command-line-options.html#despeckle">-despeckle</a></td>
 433     <td>reduce the speckles within an image</td>
 434   </tr>
 435
 436   <tr>
 437     <td><a href="command-line-options.html#direction">-direction <var>type</var></a></td>
 438     <td>render text right-to-left or left-to-right</td>
 439   </tr>
 440
 441   <tr>
 442     <td><a href="command-line-options.html#display">-display <var>server</var></a></td>
 443     <td>get image or font from this X server</td>
 444   </tr>
 445
 446   <tr>
 447     <td><a href="command-line-options.html#dispose">-dispose <var>method</var></a></td>
 448     <td>layer disposal method</td>
 449   </tr>
 450
 451   <tr>
 452     <td><a href="command-line-options.html#distribute-cache">-distribute-cache <var>port</var></a></td>
 453     <td>launch a distributed pixel cache server</td>
 454   </tr>
 455
 456   <tr>
 457     <td><a href="command-line-options.html#distort">-distort <var>type coefficients</var></a></td>
 458     <td>distort image</td>
 459   </tr>
 460
 461   <tr>
 462     <td><a href="command-line-options.html#dither">-dither  <var>method</var></a></td>
 463     <td>apply error diffusion to image</td>
 464   </tr>
 465
 466   <tr>
 467     <td><a href="command-line-options.html#draw">-draw <var>string</var></a></td>
 468     <td>annotate the image with a graphic primitive</td>
 469   </tr>
 470
 471   <tr>
 472     <td><a href="command-line-options.html#duplicate">-duplicate <var>count,indexes</var></a></td>
 473     <td>duplicate an image one or more times</td>
 474   </tr>
 475
 476   <tr>
 477     <td><a href="command-line-options.html#edge">-edge <var>radius</var></a></td>
 478     <td>apply a filter to detect edges in the image</td>
 479   </tr>
 480
 481   <tr>
 482     <td><a href="command-line-options.html#emboss">-emboss <var>radius</var></a></td>
 483     <td>emboss an image</td>
 484   </tr>
 485
 486   <tr>
 487     <td><a href="command-line-options.html#encipher">-encipher <var>filename</var></a></td>
 488     <td>convert plain pixels to cipher pixels</td>
 489   </tr>
 490
 491   <tr>
 492     <td><a href="command-line-options.html#encoding">-encoding <var>type</var></a></td>
 493     <td>text encoding type</td>
 494   </tr>
 495
 496   <tr>
 497     <td><a href="command-line-options.html#endian">-endian <var>type</var></a></td>
 498     <td>endianness (MSB or LSB) of the image</td>
 499   </tr>
 500
 501   <tr>
 502     <td><a href="command-line-options.html#enhance">-enhance</a></td>
 503     <td>apply a digital filter to enhance a noisy image</td>
 504   </tr>
 505
 506   <tr>
 507     <td><a href="command-line-options.html#equalize">-equalize</a></td>
 508     <td>perform histogram equalization to an image</td>
 509   </tr>
 510
 511   <tr>
 512     <td><a href="command-line-options.html#evaluate">-evaluate <var>operator value</var></a></td>
 513     <td>evaluate an arithmetic, relational, or logical expression</td>
 514   </tr>
 515
 516   <tr>
 517     <td><a href="command-line-options.html#evaluate-sequence">-evaluate-sequence <var>operator</var></a></td>
 518     <td>evaluate an arithmetic, relational, or logical expression for an image sequence</td>
 519   </tr>
 520
 521   <tr>
 522     <td><a href="command-line-options.html#extent">-extent <var>geometry</var></a></td>
 523     <td>set the image size</td>
 524   </tr>
 525
 526   <tr>
 527     <td><a href="command-line-options.html#extract">-extract <var>geometry</var></a></td>
 528     <td>extract area from image</td>
 529   </tr>
 530
 531   <tr>
 532     <td><a href="command-line-options.html#family">-family <var>name</var></a></td>
 533     <td>render text with this font family</td>
 534   </tr>
 535
 536   <tr>
 537     <td><a href="command-line-options.html#features">-features <var>distance</var></a></td>
 538     <td>analyze image features (e.g. contract, correlations, etc.).</td>
 539   </tr>
 540
 541   <tr>
 542     <td><a href="command-line-options.html#fft">-fft</a></td>
 543     <td>implements the discrete Fourier transform (DFT)</td>
 544   </tr>
 545
 546   <tr>
 547     <td><a href="command-line-options.html#fill">-fill <var>color</var></a></td>
 548     <td>color to use when filling a graphic primitive</td>
 549   </tr>
 550
 551   <tr>
 552     <td><a href="command-line-options.html#filter">-filter <var>type</var></a></td>
 553     <td>use this filter when resizing an image</td>
 554   </tr>
 555
 556   <tr>
 557     <td><a href="command-line-options.html#flatten">-flatten</a></td>
 558     <td>flatten a sequence of images</td>
 559   </tr>
 560
 561   <tr>
 562     <td><a href="command-line-options.html#flip">-flip</a></td>
 563     <td>flip image in the vertical direction</td>
 564   </tr>
 565
 566   <tr>
 567     <td><a href="command-line-options.html#floodfill">-floodfill <var>geometry color</var></a></td>
 568     <td>floodfill the image with color</td>
 569   </tr>
 570
 571   <tr>
 572     <td><a href="command-line-options.html#flop">-flop</a></td>
 573     <td>flop image in the horizontal direction</td>
 574   </tr>
 575
 576   <tr>
 577     <td><a href="command-line-options.html#font">-font <var>name</var></a></td>
 578     <td>render text with this font</td>
 579   </tr>
 580
 581   <tr>
 582     <td><a href="command-line-options.html#format_identify_">-format <var>string</var></a></td>
 583     <td>output formatted image characteristics</td>
 584   </tr>
 585
 586   <tr>
 587     <td><a href="command-line-options.html#frame">-frame <var>geometry</var></a></td>
 588     <td>surround image with an ornamental border</td>
 589   </tr>
 590
 591   <tr>
 592     <td><a href="command-line-options.html#function">-function <var>name</var></a></td>
 593     <td>apply a function to the image</td>
 594   </tr>
 595
 596   <tr>
 597     <td><a href="command-line-options.html#fuzz">-fuzz <var>distance</var></a></td>
 598     <td>colors within this distance are considered equal</td>
 599   </tr>
 600
 601   <tr>
 602     <td><a href="command-line-options.html#fx">-fx <var>expression</var></a></td>
 603     <td>apply mathematical expression to an image channel(s)</td>
 604   </tr>
 605
 606   <tr>
 607     <td><a href="command-line-options.html#gamma">-gamma <var>value</var></a></td>
 608     <td>level of gamma correction</td>
 609   </tr>
 610
 611   <tr>
 612     <td><a href="command-line-options.html#gaussian-blur">-gaussian-blur <var>geometry</var></a></td>
 613     <td>reduce image noise and reduce detail levels</td>
 614   </tr>
 615
 616   <tr>
 617     <td><a href="command-line-options.html#geometry">-geometry <var>geometry</var></a></td>
 618     <td>preferred size or location of the image</td>
 619   </tr>
 620
 621   <tr>
 622     <td><a href="command-line-options.html#gravity">-gravity <var>type</var></a></td>
 623     <td>horizontal and vertical text placement</td>
 624   </tr>
 625
 626   <tr>
 627     <td><a href="command-line-options.html#intensity">-grayscale <var>method</var></a></td>
 628     <td>convert image to grayscale</td>
 629   </tr>
 630
 631   <tr>
 632     <td><a href="command-line-options.html#green-primary">-green-primary <var>point</var></a></td>
 633     <td>chromaticity green primary point</td>
 634   </tr>
 635
 636   <tr>
 637     <td><a href="command-line-options.html#help">-help</a></td>
 638     <td>print program options</td>
 639   </tr>
 640
 641   <tr>
 642     <td><a href="command-line-options.html#hough-lines">-hough-lines <var>geometry</var></a></td>
 643     <td>identify lines in the image</td>
 644   </tr>
 645
 646   <tr>
 647     <td><a href="command-line-options.html#identify">-identify</a></td>
 648     <td>identify the format and characteristics of the image</td>
 649   </tr>
 650
 651   <tr>
 652     <td><a href="command-line-options.html#ift">-ift</a></td>
 653     <td>implements the inverse discrete Fourier transform (DFT)</td>
 654   </tr>
 655
 656   <tr>
 657     <td><a href="command-line-options.html#implode">-implode <var>amount</var></a></td>
 658     <td>implode image pixels about the center</td>
 659   </tr>
 660
 661   <tr>
 662     <td><a href="command-line-options.html#insert">-insert <var>index</var></a></td>
 663     <td>insert last image into the image sequence</td>
 664   </tr>
 665
 666   <tr>
 667     <td><a href="command-line-options.html#intensity">-intensity <var>method</var></a></td>
 668     <td>method to generate an intensity value from a pixel</td>
 669   </tr>
 670
 671   <tr>
 672     <td><a href="command-line-options.html#intent">-intent <var>type</var></a></td>
 673     <td>type of rendering intent when managing the image color</td>
 674   </tr>
 675
 676   <tr>
 677     <td><a href="command-line-options.html#interlace">-interlace <var>type</var></a></td>
 678     <td>type of image interlacing scheme</td>
 679   </tr>
 680
 681   <tr>
 682     <td><a href="command-line-options.html#interline-spacing">-interline-spacing <var>value</var></a></td>
 683     <td>the space between two text lines</td>
 684   </tr>
 685
 686   <tr>
 687     <td><a href="command-line-options.html#interpolate">-interpolate <var>method</var></a></td>
 688     <td>pixel color interpolation method</td>
 689   </tr>
 690
 691   <tr>
 692     <td><a href="command-line-options.html#interword-spacing">-interword-spacing <var>value</var></a></td>
 693     <td>the space between two words</td>
 694   </tr>
 695
 696   <tr>
 697     <td><a href="command-line-options.html#kerning">-kerning <var>value</var></a></td>
 698     <td>the space between two characters</td>
 699   </tr>
 700
 701   <tr>
 702     <td><a href="command-line-options.html#kuwahara">-kuwahara <var>geometry</var></a></td>
 703     <td>edge preserving noise reduction filter</td>
 704   </tr>
 705
 706   <tr>
 707     <td><a href="command-line-options.html#label">-label <var>string</var></a></td>
 708     <td>assign a label to an image</td>
 709   </tr>
 710
 711   <tr>
 712     <td><a href="command-line-options.html#lat">-lat <var>geometry</var></a></td>
 713     <td>local adaptive thresholding</td>
 714   </tr>
 715
 716   <tr>
 717     <td><a href="command-line-options.html#layers">-layers <var>method</var></a></td>
 718     <td>optimize or compare image layers</td>
 719   </tr>
 720
 721   <tr>
 722     <td><a href="command-line-options.html#level">-level <var>value</var></a></td>
 723     <td>adjust the level of image contrast</td>
 724   </tr>
 725
 726   <tr>
 727     <td><a href="command-line-options.html#limit">-limit <var>type value</var></a></td>
 728     <td>pixel cache resource limit</td>
 729   </tr>
 730
 731   <tr>
 732     <td><a href="command-line-options.html#linear-stretch">-linear-stretch <var>geometry</var></a></td>
 733     <td>linear with saturation histogram stretch</td>
 734   </tr>
 735
 736   <tr>
 737     <td><a href="command-line-options.html#liquid-rescale">-liquid-rescale <var>geometry</var></a></td>
 738     <td>rescale image with seam-carving</td>
 739   </tr>
 740
 741   <tr>
 742     <td><a href="command-line-options.html#list">-list <var>type</var></a></td>
 743     <td>Color, Configure, Delegate, Format, Magic, Module, Resource, or Type</td>
 744   </tr>
 745
 746   <tr>
 747     <td><a href="command-line-options.html#log">-log <var>format</var></a></td>
 748     <td>format of debugging information</td>
 749   </tr>
 750
 751   <tr>
 752     <td><a href="command-line-options.html#loop">-loop <var>iterations</var></a></td>
 753     <td>add Netscape loop extension to your GIF animation</td>
 754   </tr>
 755
 756   <tr>
 757     <td><a href="command-line-options.html#mask">-mask <var>filename</var></a></td>
 758     <td>associate a mask with the image</td>
 759   </tr>
 760
 761   <tr>
 762     <td><a href="command-line-options.html#mattecolor">-mattecolor <var>color</var></a></td>
 763     <td>frame color</td>
 764   </tr>
 765
 766   <tr>
 767     <td><a href="command-line-options.html#median">-median <var>radius</var></a></td>
 768     <td>apply a median filter to the image</td>
 769   </tr>
 770
 771   <tr>
 772     <td><a href="command-line-options.html#mean-shift">-mean-shift <var>geometry</var></a></td>
 773     <td>delineate arbitrarily shaped clusters in the image</td>
 774   </tr>
 775
 776   <tr>
 777     <td><a href="command-line-options.html#metric">-metric <var>type</var></a></td>
 778     <td>measure differences between images with this metric</td>
 779   </tr>
 780
 781   <tr>
 782     <td><a href="command-line-options.html#mode">-mode <var>radius</var></a></td>
 783     <td>make each pixel the 'predominant color' of the neighborhood</td>
 784   </tr>
 785
 786   <tr>
 787     <td><a href="command-line-options.html#modulate">-modulate <var>value</var></a></td>
 788     <td>vary the brightness, saturation, and hue</td>
 789   </tr>
 790
 791   <tr>
 792     <td><a href="command-line-options.html#moments">-moments</a></td>
 793     <td>display image moments.</td>
 794   </tr>
 795
 796   <tr>
 797     <td><a href="command-line-options.html#monitor">-monitor</a></td>
 798     <td>monitor progress</td>
 799   </tr>
 800
 801   <tr>
 802     <td><a href="command-line-options.html#monochrome">-monochrome</a></td>
 803     <td>transform image to black and white</td>
 804   </tr>
 805
 806   <tr>
 807     <td><a href="command-line-options.html#morph">-morph <var>value</var></a></td>
 808     <td>morph an image sequence</td>
 809   </tr>
 810
 811   <tr>
 812     <td><a href="command-line-options.html#morphology">-morphology <var>method</var></a> <var>kernel</var></td>
 813     <td>apply a morphology method to the image</td>
 814   </tr>
 815
 816   <tr>
 817     <td><a href="command-line-options.html#motion-blur">-motion-blur <var>geometry</var></a></td>
 818     <td>simulate motion blur</td>
 819   </tr>
 820
 821   <tr>
 822     <td><a href="command-line-options.html#negate">-negate</a></td>
 823     <td>replace each pixel with its complementary color </td>
 824   </tr>
 825
 826   <tr>
 827     <td><a href="command-line-options.html#noise">-noise <var>radius</var></a></td>
 828     <td>add or reduce noise in an image</td>
 829   </tr>
 830
 831   <tr>
 832     <td><a href="command-line-options.html#normalize">-normalize</a></td>
 833     <td>transform image to span the full range of colors</td>
 834   </tr>
 835
 836   <tr>
 837     <td><a href="command-line-options.html#opaque">-opaque <var>color</var></a></td>
 838     <td>change this color to the fill color</td>
 839   </tr>
 840
 841   <tr>
 842     <td><a href="command-line-options.html#ordered-dither">-ordered-dither <var>NxN</var></a></td>
 843     <td>ordered dither the image</td>
 844   </tr>
 845
 846   <tr>
 847     <td><a href="command-line-options.html#orient">-orient <var>type</var></a></td>
 848     <td>image orientation</td>
 849   </tr>
 850
 851   <tr>
 852     <td><a href="command-line-options.html#page">-page <var>geometry</var></a></td>
 853     <td>size and location of an image canvas (setting)</td>
 854   </tr>
 855
 856   <tr>
 857     <td><a href="command-line-options.html#paint">-paint <var>radius</var></a></td>
 858     <td>simulate an oil painting</td>
 859   </tr>
 860
 861   <tr>
 862     <td><a href="command-line-options.html#perceptible">-perceptible</a></td>
 863     <td>set each pixel whose value is less than |<var>epsilon</var>| to <var>-epsilon</var> or <var>epsilon</var> (whichever is closer) otherwise the pixel value remains unchanged.</td>
 864   </tr>
 865
 866   <tr>
 867     <td><a href="command-line-options.html#ping">-ping</a></td>
 868     <td>efficiently determine image attributes</td>
 869   </tr>
 870
 871   <tr>
 872     <td><a href="command-line-options.html#pointsize">-pointsize <var>value</var></a></td>
 873     <td>font point size</td>
 874   </tr>
 875
 876   <tr>
 877     <td><a href="command-line-options.html#polaroid">-polaroid <var>angle</var></a></td>
 878     <td>simulate a Polaroid picture</td>
 879   </tr>
 880
 881   <tr>
 882     <td><a href="command-line-options.html#poly">-poly <var>terms</var></a></td>
 883     <td>build a polynomial from the image sequence and the corresponding terms (coefficients and degree pairs).</td>
 884   </tr>
 885
 886   <tr>
 887     <td><a href="command-line-options.html#posterize">-posterize <var>levels</var></a></td>
 888     <td>reduce the image to a limited number of color levels</td>
 889   </tr>
 890
 891   <tr>
 892     <td><a href="command-line-options.html#precision">-precision <var>value</var></a></td>
 893     <td>set the maximum number of significant digits to be printed</td>
 894   </tr>
 895
 896   <tr>
 897     <td><a href="command-line-options.html#preview">-preview <var>type</var></a></td>
 898     <td>image preview type</td>
 899   </tr>
 900
 901   <tr>
 902     <td><a href="command-line-options.html#print">-print <var>string</var></a></td>
 903     <td>interpret string and print to console</td>
 904   </tr>
 905
 906   <tr>
 907     <td><a href="command-line-options.html#process">-process <var>image-filter</var></a></td>
 908     <td>process the image with a custom image filter</td>
 909   </tr>
 910
 911   <tr>
 912     <td><a href="command-line-options.html#profile">-profile <var>filename</var></a></td>
 913     <td>add, delete, or apply an image profile</td>
 914   </tr>
 915
 916   <tr>
 917     <td><a href="command-line-options.html#quality">-quality <var>value</var></a></td>
 918     <td>JPEG/MIFF/PNG compression level</td>
 919   </tr>
 920
 921   <tr>
 922     <td><a href="command-line-options.html#quantize">-quantize <var>colorspace</var></a></td>
 923     <td>reduce image colors in this colorspace</td>
 924   </tr>
 925
 926   <tr>
 927     <td><a href="command-line-options.html#quiet">-quiet</a></td>
 928     <td>suppress all warning messages</td>
 929   </tr>
 930
 931   <tr>
 932     <td><a href="command-line-options.html#radial-blur">-radial-blur <var>angle</var></a></td>
 933     <td>radial blur the image</td>
 934   </tr>
 935
 936   <tr>
 937     <td><a href="command-line-options.html#raise">-raise <var>value</var></a></td>
 938     <td>lighten/darken image edges to create a 3-D effect</td>
 939   </tr>
 940
 941   <tr>
 942     <td><a href="command-line-options.html#random-threshold">-random-threshold <var>low,high</var></a></td>
 943     <td>random threshold the image</td>
 944   </tr>
 945
 946   <tr>
 947     <td><a href="command-line-options.html#red-primary">-red-primary <var>point</var></a></td>
 948     <td>chromaticity red primary point</td>
 949   </tr>
 950
 951   <tr>
 952     <td><a href="command-line-options.html#regard-warnings">-regard-warnings</a></td>
 953     <td>pay attention to warning messages.</td>
 954   </tr>
 955
 956   <tr>
 957     <td><a href="command-line-options.html#region">-region <var>geometry</var></a></td>
 958     <td>apply options to a portion of the image</td>
 959   </tr>
 960
 961   <tr>
 962     <td><a href="command-line-options.html#remap">-remap <var>filename</var></a></td>
 963     <td>transform image colors to match this set of colors</td>
 964   </tr>
 965
 966   <tr>
 967     <td><a href="command-line-options.html#render">-render</a></td>
 968     <td>render vector graphics</td>
 969   </tr>
 970
 971   <tr>
 972     <td><a href="command-line-options.html#repage">-repage <var>geometry</var></a></td>
 973     <td>size and location of an image canvas</td>
 974   </tr>
 975
 976   <tr>
 977     <td><a href="command-line-options.html#resample">-resample <var>geometry</var></a></td>
 978     <td>change the resolution of an image</td>
 979   </tr>
 980
 981   <tr>
 982     <td><a href="command-line-options.html#resize">-resize <var>geometry</var></a></td>
 983     <td>resize the image</td>
 984   </tr>
 985
 986   <tr>
 987     <td><a href="command-line-options.html#respect-parentheses">-respect-parentheses</a></td>
 988     <td>settings remain in effect until parenthesis boundary.</td>
 989   </tr>
 990
 991   <tr>
 992     <td><a href="command-line-options.html#roll">-roll <var>geometry</var></a></td>
 993     <td>roll an image vertically or horizontally</td>
 994   </tr>
 995
 996   <tr>
 997     <td><a href="command-line-options.html#rotate">-rotate <var>degrees</var></a></td>
 998     <td>apply Paeth rotation to the image</td>
 999   </tr>
1000
1001   <tr>
1002     <td><a href="command-line-options.html#sample">-sample <var>geometry</var></a></td>
1003     <td>scale image with pixel sampling</td>
1004   </tr>
1005
1006   <tr>
1007     <td><a href="command-line-options.html#sampling-factor">-sampling-factor <var>geometry</var></a></td>
1008     <td>horizontal and vertical sampling factor</td>
1009   </tr>
1010
1011   <tr>
1012     <td><a href="command-line-options.html#scale">-scale <var>geometry</var></a></td>
1013     <td>scale the image</td>
1014   </tr>
1015
1016   <tr>
1017     <td><a href="command-line-options.html#scene">-scene <var>value</var></a></td>
1018     <td>image scene number</td>
1019   </tr>
1020
1021   <tr>
1022     <td><a href="command-line-options.html#seed">-seed <var>value</var></a></td>
1023     <td>seed a new sequence of pseudo-random numbers</td>
1024   </tr>
1025
1026   <tr>
1027     <td><a href="command-line-options.html#segment">-segment <var>values</var></a></td>
1028     <td>segment an image</td>
1029   </tr>
1030
1031   <tr>
1032     <td><a href="command-line-options.html#threshold">-selective-blur <var>geometry</var></a></td>
1033     <td>selectively blur pixels within a contrast threshold</td>
1034   </tr>
1035
1036   <tr>
1037     <td><a href="command-line-options.html#separate">-separate</a></td>
1038     <td>separate an image channel into a grayscale image</td>
1039   </tr>
1040
1041   <tr>
1042     <td><a href="command-line-options.html#sepia-tone">-sepia-tone <var>threshold</var></a></td>
1043     <td>simulate a sepia-toned photo</td>
1044   </tr>
1045
1046   <tr>
1047     <td><a href="command-line-options.html#set">-set <var>attribute value</var></a></td>
1048     <td>set an image attribute</td>
1049   </tr>
1050
1051   <tr>
1052     <td><a href="command-line-options.html#shade">-shade <var>degrees</var></a></td>
1053     <td>shade the image using a distant light source</td>
1054   </tr>
1055
1056   <tr>
1057     <td><a href="command-line-options.html#shadow">-shadow <var>geometry</var></a></td>
1058     <td>simulate an image shadow</td>
1059   </tr>
1060
1061   <tr>
1062     <td><a href="command-line-options.html#sharpen">-sharpen <var>geometry</var></a></td>
1063     <td>sharpen the image</td>
1064   </tr>
1065
1066   <tr>
1067     <td><a href="command-line-options.html#shave">-shave <var>geometry</var></a></td>
1068     <td>shave pixels from the image edges</td>
1069   </tr>
1070
1071   <tr>
1072     <td><a href="command-line-options.html#shear">-shear <var>geometry</var></a></td>
1073     <td>slide one edge of the image along the X or Y axis</td>
1074   </tr>
1075
1076   <tr>
1077     <td><a href="command-line-options.html#sigmoidal">-sigmoidal-contrast <var>geometry</var></a></td>
1078     <td>increase the contrast without saturating highlights or shadows</td>
1079   </tr>
1080
1081   <tr>
1082     <td><a href="command-line-options.html#smush">-smush <var>offset</var></a></td>
1083     <td>smush an image sequence together</td>
1084   </tr>
1085
1086   <tr>
1087     <td><a href="command-line-options.html#size">-size <var>geometry</var></a></td>
1088     <td>width and height of image</td>
1089   </tr>
1090
1091   <tr>
1092     <td><a href="command-line-options.html#sketch">-sketch <var>geometry</var></a></td>
1093     <td>simulate a pencil sketch</td>
1094   </tr>
1095
1096   <tr>
1097     <td><a href="command-line-options.html#solarize">-solarize <var>threshold</var></a></td>
1098     <td>negate all pixels above the threshold level</td>
1099   </tr>
1100
1101   <tr>
1102     <td><a href="command-line-options.html#splice">-splice <var>geometry</var></a></td>
1103     <td>splice the background color into the image</td>
1104   </tr>
1105
1106   <tr>
1107     <td><a href="command-line-options.html#spread">-spread <var>radius</var></a></td>
1108     <td>displace image pixels by a random amount</td>
1109   </tr>
1110
1111   <tr>
1112     <td><a href="command-line-options.html#statistic">-statistic <var>type</var> <var>geometry</var></a></td>
1113     <td>replace each pixel with corresponding statistic from the neighborhood</td>
1114   </tr>
1115
1116   <tr>
1117     <td><a href="command-line-options.html#strip">-strip</a></td>
1118     <td>strip image of all profiles and comments</td>
1119   </tr>
1120
1121   <tr>
1122     <td><a href="command-line-options.html#stroke">-stroke <var>color</var></a></td>
1123     <td>graphic primitive stroke color</td>
1124   </tr>
1125
1126   <tr>
1127     <td><a href="command-line-options.html#strokewidth">-strokewidth <var>value</var></a></td>
1128     <td>graphic primitive stroke width</td>
1129   </tr>
1130
1131   <tr>
1132     <td><a href="command-line-options.html#stretch">-stretch <var>type</var></a></td>
1133     <td>render text with this font stretch</td>
1134   </tr>
1135
1136   <tr>
1137     <td><a href="command-line-options.html#style">-style <var>type</var></a></td>
1138     <td>render text with this font style</td>
1139   </tr>
1140
1141   <tr>
1142     <td><a href="command-line-options.html#swap">-swap <var>indexes</var></a></td>
1143     <td>swap two images in the image sequence</td>
1144   </tr>
1145
1146   <tr>
1147     <td><a href="command-line-options.html#swirl">-swirl <var>degrees</var></a></td>
1148     <td>swirl image pixels about the center</td>
1149   </tr>
1150
1151   <tr>
1152     <td><a href="command-line-options.html#synchronize">-synchronize</a></td>
1153     <td>synchronize image to storage device</td>
1154   </tr>
1155
1156   <tr>
1157     <td><a href="command-line-options.html#taint">-taint</a></td>
1158     <td>mark the image as modified</td>
1159   </tr>
1160
1161   <tr>
1162     <td><a href="command-line-options.html#texture">-texture <var>filename</var></a></td>
1163     <td>name of texture to tile onto the image background</td>
1164   </tr>
1165
1166   <tr>
1167     <td><a href="command-line-options.html#threshold">-threshold <var>value</var></a></td>
1168     <td>threshold the image</td>
1169   </tr>
1170
1171   <tr>
1172     <td><a href="command-line-options.html#thumbnail">-thumbnail <var>geometry</var></a></td>
1173     <td>create a thumbnail of the image</td>
1174   </tr>
1175
1176   <tr>
1177     <td><a href="command-line-options.html#tile">-tile <var>filename</var></a></td>
1178     <td>tile image when filling a graphic primitive</td>
1179   </tr>
1180
1181   <tr>
1182     <td><a href="command-line-options.html#tile-offset">-tile-offset <var>geometry</var></a></td>
1183     <td>set the image tile offset</td>
1184   </tr>
1185
1186   <tr>
1187     <td><a href="command-line-options.html#tint">-tint <var>value</var></a></td>
1188     <td>tint the image with the fill color</td>
1189   </tr>
1190
1191   <tr>
1192     <td><a href="command-line-options.html#transform">-transform</a></td>
1193     <td>affine transform image</td>
1194   </tr>
1195
1196   <tr>
1197     <td><a href="command-line-options.html#transparent">-transparent <var>color</var></a></td>
1198     <td>make this color transparent within the image</td>
1199   </tr>
1200
1201   <tr>
1202     <td><a href="command-line-options.html#transparent-color">-transparent-color <var>color</var></a></td>
1203     <td>transparent color</td>
1204   </tr>
1205
1206   <tr>
1207     <td><a href="command-line-options.html#transpose">-transpose</a></td>
1208     <td>flip image in the vertical direction and rotate 90 degrees</td>
1209   </tr>
1210
1211   <tr>
1212     <td><a href="command-line-options.html#transverse">-transverse</a></td>
1213     <td>flop image in the horizontal direction and rotate 270 degrees</td>
1214   </tr>
1215
1216   <tr>
1217     <td><a href="command-line-options.html#treedepth">-treedepth <var>value</var></a></td>
1218     <td>color tree depth</td>
1219   </tr>
1220
1221   <tr>
1222     <td><a href="command-line-options.html#trim">-trim</a></td>
1223     <td>trim image edges</td>
1224   </tr>
1225
1226   <tr>
1227     <td><a href="command-line-options.html#type">-type <var>type</var></a></td>
1228     <td>image type</td>
1229   </tr>
1230
1231   <tr>
1232     <td><a href="command-line-options.html#undercolor">-undercolor <var>color</var></a></td>
1233     <td>annotation bounding box color</td>
1234   </tr>
1235
1236   <tr>
1237     <td><a href="command-line-options.html#unique-colors">-unique-colors</a></td>
1238     <td>discard all but one of any pixel color.</td>
1239   </tr>
1240
1241   <tr>
1242     <td><a href="command-line-options.html#units">-units <var>type</var></a></td>
1243     <td>the units of image resolution</td>
1244   </tr>
1245
1246   <tr>
1247     <td><a href="command-line-options.html#unsharp">-unsharp <var>geometry</var></a></td>
1248     <td>sharpen the image</td>
1249   </tr>
1250
1251   <tr>
1252     <td><a href="command-line-options.html#verbose">-verbose</a></td>
1253     <td>print detailed information about the image</td>
1254   </tr>
1255
1256   <tr>
1257     <td><a href="command-line-options.html#version">-version</a></td>
1258     <td>print version information</td>
1259   </tr>
1260
1261   <tr>
1262     <td><a href="command-line-options.html#view">-view</a></td>
1263     <td>FlashPix viewing transforms</td>
1264   </tr>
1265
1266   <tr>
1267     <td><a href="command-line-options.html#vignette">-vignette <var>geometry</var></a></td>
1268     <td>soften the edges of the image in vignette style</td>
1269   </tr>
1270
1271   <tr>
1272     <td><a href="command-line-options.html#virtual-pixel">-virtual-pixel <var>method</var></a></td>
1273     <td>access method for pixels outside the boundaries of the image</td>
1274   </tr>
1275
1276   <tr>
1277     <td><a href="command-line-options.html#wave">-wave <var>geometry</var></a></td>
1278     <td>alter an image along a sine wave</td>
1279   </tr>
1280
1281   <tr>
1282     <td><a href="command-line-options.html#wavelet">-wavelet-denoise <var>threshold</var></a></td>
1283     <td>removes noise from the image using a wavelet transform</td>
1284   </tr>
1285
1286   <tr>
1287     <td><a href="command-line-options.html#weight">-weight <var>type</var></a></td>
1288     <td>render text with this font weight</td>
1289   </tr>
1290
1291   <tr>
1292     <td><a href="command-line-options.html#white-point">-white-point <var>point</var></a></td>
1293     <td>chromaticity white point</td>
1294   </tr>
1295
1296   <tr>
1297     <td><a href="command-line-options.html#white-threshold">-white-threshold <var>value</var></a></td>
1298     <td>force all pixels above the threshold into white</td>
1299   </tr>
1300
1301   <tr>
1302     <td><a href="command-line-options.html#write">-write <var>filename</var></a></td>
1303     <td>write images to this file</td>
1304   </tr>
1305 </table>
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