1 2 3 4 5<!doctype html> 6<html lang="en"> 7<head> 8 <meta charset="utf-8" /> 9 <meta name="viewport" content="width=device-width, initial-scale=1" /> 10 <title>ImageMagick - Command-line Tools: Convert</title> 11 <meta name="application-name" content="ImageMagick" /> 12 <meta name="description" content="Use ImageMagick® to create, edit, compose, and convert digital images. 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See <a href="../www/command-line-processing.html">Command Line Processing</a> for advice on how to structure your <code>magick</code> command or see below for example usages of the command.</p> 96 97<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> 98 99<pre class="highlight"><code>magick convert rose.jpg rose.png 100</code></pre> 101 102<p>Next, we reduce the image size before it is written to the PNG format:</p> 103 104<pre class="highlight"><code>magick convert rose.jpg -resize 50% rose.png 105</code></pre> 106 107<ul> 108 <a href="../images/rose.jpg"> 109 <img src="../images/rose.jpg" width="70" height="46" alt="rose" /> 110 </a> 111 <img style="margin-top:13px; margin-bottom:13px;" src="../images/right.gif" width="20" height="20" alt="==>" /> 112 <a href="../images/rose.png"> 113 <img style="margin-top:11px; margin-bottom:12px;" src="../images/rose.png" width="35" height="23" alt="rose" /> 114 </a> 115</ul> 116 117<p>You can combine multiple image-processing operations to produce complex results:</p> 118 119<pre class="highlight"><code>magick convert -size 320x85 canvas:none -font Bookman-DemiItalic -pointsize 72 \ 120 -draw "text 25,60 \'Magick\'" -channel RGBA -blur 0x6 -fill darkred -stroke magenta \ 121 -draw "text 20,55 \'Magick\'" fuzzy-magick.png 122</code></pre> 123 124<ul> 125 <a href="../images/fuzzy-magick.png"><img src="../images/fuzzy-magick.png" width="320" height="85" alt="fuzzy-magick" /></a> 126</ul> 127 128<p>or here we resize an image with improved quality:</p> 129 130<pre class="highlight"><code>magick convert input.png -colorspace RGB +sigmoidal-contrast 11.6933 \ 131 -define filter:filter=Sinc -define filter:window=Jinc -define filter:lobes=3 \ 132 -resize 400% -sigmoidal-contrast 11.6933 -colorspace sRGB output.png'); 133</code></pre> 134 135<p>You can find additional examples of using <code>magick</code> in <a href="https://legacy.imagemagick.org/Usage/">Examples of ImageMagick Usage</a>.</p> 136 137<h2><a class="anchor" id="options"></a>Option Summary</h2> 138 139<p>The <code>magick</code> command recognizes these options. Click on an option to get more details about how that option works.</p> 140 141<div class="table-responsive" style="font-size:87.5% !important;"> 142<table class="table table-sm table-hover"> 143 <tr> 144 <td><a href="../www/command-line-options.html#adaptive-blur">-adaptive-blur <var>geometry</var></a></td> 145 <td>adaptively blur pixels; decrease effect near edges</td> 146 </tr> 147 148 <tr> 149 <td><a href="../www/command-line-options.html#adaptive-resize">-adaptive-resize <var>geometry</var></a></td> 150 <td>adaptively resize image with data dependent triangulation.</td> 151 </tr> 152 153 <tr> 154 <td><a href="../www/command-line-options.html#adaptive-sharpen">-adaptive-sharpen <var>geometry</var></a></td> 155 <td>adaptively sharpen pixels; increase effect near edges</td> 156 </tr> 157 158 <tr> 159 <td><a href="../www/command-line-options.html#adjoin">-adjoin</a></td> 160 <td>join images into a single multi-image file</td> 161 </tr> 162 163 <tr> 164 <td><a href="../www/command-line-options.html#affine">-affine <var>matrix</var></a></td> 165 <td>affine transform matrix</td> 166 </tr> 167 168 <tr> 169 <td><a href="../www/command-line-options.html#alpha">-alpha</a></td> 170 <td>on, activate, off, deactivate, set, opaque, copy", 171transparent, extract, background, or shape the alpha channel</td> 172 </tr> 173 174 <tr> 175 <td><a href="../www/command-line-options.html#annotate">-annotate <var>geometry text</var></a></td> 176 <td>annotate the image with text</td> 177 </tr> 178 179 <tr> 180 <td><a href="../www/command-line-options.html#antialias">-antialias</a></td> 181 <td>remove pixel-aliasing</td> 182 </tr> 183 184 <tr> 185 <td><a href="../www/command-line-options.html#append">-append</a></td> 186 <td>append an image sequence</td> 187 </tr> 188 189 <tr> 190 <td><a href="../www/command-line-options.html#authenticate">-authenticate <var>value</var></a></td> 191 <td>decipher image with this password</td> 192 </tr> 193 194 <tr> 195 <td><a href="../www/command-line-options.html#auto-gamma">-auto-gamma</a></td> 196 <td>automagically adjust gamma level of image</td> 197 </tr> 198 199 <tr> 200 <td><a href="../www/command-line-options.html#auto-level">-auto-level</a></td> 201 <td>automagically adjust color levels of image</td> 202 </tr> 203 204 <tr> 205 <td><a href="../www/command-line-options.html#auto-orient">-auto-orient</a></td> 206 <td>automagically orient image</td> 207 </tr> 208 209 <tr> 210 <td><a href="../www/command-line-options.html#auto-threshold">-auto-threshold <var>method</var></a></td> 211 <td>automatically perform image thresholding</td> 212 </tr> 213 214 <tr> 215 <td><a href="../www/command-line-options.html#background">-background <var>color</var></a></td> 216 <td>background color</td> 217 </tr> 218 219 <tr> 220 <td><a href="../www/command-line-options.html#bench">-bench <var>iterations</var></a></td> 221 <td>measure performance</td> 222 </tr> 223 224 <tr> 225 <td><a href="../www/command-line-options.html#bias">-bias <var>value</var></a></td> 226 <td>add bias when convolving an image</td> 227 </tr> 228 229 <tr> 230 <td><a href="../www/command-line-options.html#bilateral-blur">-bilateral-blur <var>geometry</var></a></td> 231 <td>non-linear, edge-preserving, and noise-reducing smoothing filter</td> 232 </tr> 233 234 <tr> 235 <td><a href="../www/command-line-options.html#black-threshold">-black-threshold <var>value</var></a></td> 236 <td>force all pixels below the threshold into black</td> 237 </tr> 238 239 <tr> 240 <td><a href="../www/command-line-options.html#blue-primary">-blue-primary <var>point</var></a></td> 241 <td>chromaticity blue primary point</td> 242 </tr> 243 244 <tr> 245 <td><a href="../www/command-line-options.html#blue-shift">-blue-shift <var>factor</var></a></td> 246 <td>simulate a scene at nighttime in the moonlight</td> 247 </tr> 248 249 <tr> 250 <td><a href="../www/command-line-options.html#blur">-blur <var>geometry</var></a></td> 251 <td>reduce image noise and reduce detail levels</td> 252 </tr> 253 254 <tr> 255 <td><a href="../www/command-line-options.html#border">-border <var>geometry</var></a></td> 256 <td>surround image with a border of color</td> 257 </tr> 258 259 <tr> 260 <td><a href="../www/command-line-options.html#bordercolor">-bordercolor <var>color</var></a></td> 261 <td>border color</td> 262 </tr> 263 264 <tr> 265 <td><a href="../www/command-line-options.html#brightness-contrast">-brightness-contrast <var>geometry</var></a></td> 266 <td>improve brightness / contrast of the image</td> 267 </tr> 268 269 <tr> 270 <td><a href="../www/command-line-options.html#canny">-canny <var>geometry</var></a></td> 271 <td>use a multi-stage algorithm to detect a wide range of edges in the image</td> 272 </tr> 273 274 <tr> 275 <td><a href="../www/command-line-options.html#caption">-caption <var>string</var></a></td> 276 <td>assign a caption to an image</td> 277 </tr> 278 279 <tr> 280 <td><a href="../www/command-line-options.html#cdl">-cdl <var>filename</var></a></td> 281 <td>color correct with a color decision list</td> 282 </tr> 283 284 <tr> 285 <td><a href="../www/command-line-options.html#channel">-channel <var>type</var></a></td> 286 <td>apply option to select image channels</td> 287 </tr> 288 289 <tr> 290 <td><a href="../www/command-line-options.html#charcoal">-charcoal <var>radius</var></a></td> 291 <td>simulate a charcoal drawing</td> 292 </tr> 293 294 <tr> 295 <td><a href="../www/command-line-options.html#chop">-chop <var>geometry</var></a></td> 296 <td>remove pixels from the image interior</td> 297 </tr> 298 299 <tr> 300 <td><a href="../www/command-line-options.html#clahe">-clahe <var>geometry</var></a></td> 301 <td>contrast limited adaptive histogram equalization</td> 302 </tr> 303 304 <tr> 305 <td><a href="../www/command-line-options.html#clamp">-clamp</a></td> 306 <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> 307 </tr> 308 309 <tr> 310 <td><a href="../www/command-line-options.html#clip">-clip</a></td> 311 <td>clip along the first path from the 8BIM profile</td> 312 </tr> 313 314 <tr> 315 <td><a href="../www/command-line-options.html#clip-mask">-clip-mask</a> <var>filename</var></td> 316 <td>associate clip mask with the image</td> 317 </tr> 318 319 <tr> 320 <td><a href="../www/command-line-options.html#clip-path">-clip-path <var>id</var></a></td> 321 <td>clip along a named path from the 8BIM profile</td> 322 </tr> 323 324 <tr> 325 <td><a href="../www/command-line-options.html#clone">-clone <var>index</var></a></td> 326 <td>clone an image</td> 327 </tr> 328 329 <tr> 330 <td><a href="../www/command-line-options.html#clut">-clut</a></td> 331 <td>apply a color lookup table to the image</td> 332 </tr> 333 334 <tr> 335 <td><a href="../www/command-line-options.html#connected-components">-connected-components <var>connectivity</var></a></td> 336 <td>connected-components uniquely labeled, choose from 4 or 8 way connectivity</td> 337 </tr> 338 339 <tr> 340 <td><a href="../www/command-line-options.html#contrast-stretch">-contrast-stretch <var>geometry</var></a></td> 341 <td>improve the contrast in an image by `stretching' the range of intensity value</td> 342 </tr> 343 344 <tr> 345 <td><a href="../www/command-line-options.html#coalesce">-coalesce</a></td> 346 <td>merge a sequence of images</td> 347 </tr> 348 349 <tr> 350 <td><a href="../www/command-line-options.html#colorize">-colorize <var>value</var></a></td> 351 <td>colorize the image with the fill color</td> 352 </tr> 353 354 <tr> 355 <td><a href="../www/command-line-options.html#color-matrix">-color-matrix <var>matrix</var></a></td> 356 <td>apply color correction to the image.</td> 357 </tr> 358 359 <tr> 360 <td><a href="../www/command-line-options.html#colors">-colors <var>value</var></a></td> 361 <td>preferred number of colors in the image</td> 362 </tr> 363 364 <tr> 365 <td><a href="../www/command-line-options.html#colorspace">-colorspace <var>type</var></a></td> 366 <td>set image colorspace</td> 367 </tr> 368 369 <tr> 370 <td><a href="../www/command-line-options.html#color-threshold">-color-threshold <var>start-color</var>-<var>stop-color</var></a></td> 371 <td>force all pixels in the color range to white otherwise black</td> 372 </tr> 373 374 <tr> 375 <td><a href="../www/command-line-options.html#combine">-combine</a></td> 376 <td>combine a sequence of images</td> 377 </tr> 378 379 <tr> 380 <td><a href="../www/command-line-options.html#comment">-comment <var>string</var></a></td> 381 <td>annotate image with comment</td> 382 </tr> 383 384 <tr> 385 <td><a href="../www/command-line-options.html#compare">-compare</a></td> 386 <td>compare image</td> 387 </tr> 388 389 <tr> 390 <td><a href="../www/command-line-options.html#complex">-complex<var>operator</var></a></td> 391 <td>perform complex mathematics on an image sequence</td> 392 </tr> 393 394 <tr> 395 <td><a href="../www/command-line-options.html#compose">-compose <var>operator</var></a></td> 396 <td>set image composite operator</td> 397 </tr> 398 399 <tr> 400 <td><a href="../www/command-line-options.html#composite">-composite</a></td> 401 <td>composite image</td> 402 </tr> 403 404 <tr> 405 <td><a href="../www/command-line-options.html#compress">-compress <var>type</var></a></td> 406 <td>image compression type</td> 407 </tr> 408 409 <tr> 410 <td><a href="../www/command-line-options.html#contrast">-contrast</a></td> 411 <td>enhance or reduce the image contrast</td> 412 </tr> 413 414 <tr> 415 <td><a href="../www/command-line-options.html#convolve">-convolve <var>coefficients</var></a></td> 416 <td>apply a convolution kernel to the image</td> 417 </tr> 418 419 <tr> 420 <td><a href="../www/command-line-options.html#copy">-copy <var>geometry</var> <var>offset</var></a></td> 421 <td>copy pixels from one area of an image to another</td> 422 </tr> 423 424 <tr> 425 <td><a href="../www/command-line-options.html#crop">-crop <var>geometry</var></a></td> 426 <td>crop the image</td> 427 </tr> 428 429 <tr> 430 <td><a href="../www/command-line-options.html#cycle">-cycle <var>amount</var></a></td> 431 <td>cycle the image colormap</td> 432 </tr> 433 434 <tr> 435 <td><a href="../www/command-line-options.html#decipher">-decipher <var>filename</var></a></td> 436 <td>convert cipher pixels to plain</td> 437 </tr> 438 439 <tr> 440 <td><a href="../www/command-line-options.html#debug">-debug <var>events</var></a></td> 441 <td>display copious debugging information</td> 442 </tr> 443 444 <tr> 445 <td><a href="../www/command-line-options.html#define">-define <var>format:option</var></a></td> 446 <td>define one or more image format options</td> 447 </tr> 448 449 <tr> 450 <td><a href="../www/command-line-options.html#deconstruct">-deconstruct</a></td> 451 <td>break down an image sequence into constituent parts</td> 452 </tr> 453 454 <tr> 455 <td><a href="../www/command-line-options.html#delay">-delay <var>centiseconds</var></a></td> 456 <td>display the next image after pausing</td> 457 </tr> 458 459 <tr> 460 <td><a href="../www/command-line-options.html#delete">-delete <var>index</var></a></td> 461 <td>delete the image from the image sequence</td> 462 </tr> 463 464 <tr> 465 <td><a href="../www/command-line-options.html#density">-density <var>geometry</var></a></td> 466 <td>horizontal and vertical density of the image</td> 467 </tr> 468 469 <tr> 470 <td><a href="../www/command-line-options.html#depth">-depth <var>value</var></a></td> 471 <td>image depth</td> 472 </tr> 473 474 <tr> 475 <td><a href="../www/command-line-options.html#despeckle">-despeckle</a></td> 476 <td>reduce the speckles within an image</td> 477 </tr> 478 479 <tr> 480 <td><a href="../www/command-line-options.html#direction">-direction <var>type</var></a></td> 481 <td>render text right-to-left or left-to-right</td> 482 </tr> 483 484 <tr> 485 <td><a href="../www/command-line-options.html#display">-display <var>server</var></a></td> 486 <td>get image or font from this X server</td> 487 </tr> 488 489 <tr> 490 <td><a href="../www/command-line-options.html#dispose">-dispose <var>method</var></a></td> 491 <td>layer disposal method</td> 492 </tr> 493 494 <tr> 495 <td><a href="../www/command-line-options.html#distribute-cache">-distribute-cache <var>port</var></a></td> 496 <td>launch a distributed pixel cache server</td> 497 </tr> 498 499 <tr> 500 <td><a href="../www/command-line-options.html#distort">-distort <var>type coefficients</var></a></td> 501 <td>distort image</td> 502 </tr> 503 504 <tr> 505 <td><a href="../www/command-line-options.html#dither">-dither <var>method</var></a></td> 506 <td>apply error diffusion to image</td> 507 </tr> 508 509 <tr> 510 <td><a href="../www/command-line-options.html#draw">-draw <var>string</var></a></td> 511 <td>annotate the image with a graphic primitive</td> 512 </tr> 513 514 <tr> 515 <td><a href="../www/command-line-options.html#duplicate">-duplicate <var>count,indexes</var></a></td> 516 <td>duplicate an image one or more times</td> 517 </tr> 518 519 <tr> 520 <td><a href="../www/command-line-options.html#edge">-edge <var>radius</var></a></td> 521 <td>apply a filter to detect edges in the image</td> 522 </tr> 523 524 <tr> 525 <td><a href="../www/command-line-options.html#emboss">-emboss <var>radius</var></a></td> 526 <td>emboss an image</td> 527 </tr> 528 529 <tr> 530 <td><a href="../www/command-line-options.html#encipher">-encipher <var>filename</var></a></td> 531 <td>convert plain pixels to cipher pixels</td> 532 </tr> 533 534 <tr> 535 <td><a href="../www/command-line-options.html#encoding">-encoding <var>type</var></a></td> 536 <td>text encoding type</td> 537 </tr> 538 539 <tr> 540 <td><a href="../www/command-line-options.html#endian">-endian <var>type</var></a></td> 541 <td>endianness (MSB or LSB) of the image</td> 542 </tr> 543 544 <tr> 545 <td><a href="../www/command-line-options.html#enhance">-enhance</a></td> 546 <td>apply a digital filter to enhance a noisy image</td> 547 </tr> 548 549 <tr> 550 <td><a href="../www/command-line-options.html#equalize">-equalize</a></td> 551 <td>perform histogram equalization to an image</td> 552 </tr> 553 554 <tr> 555 <td><a href="../www/command-line-options.html#evaluate">-evaluate <var>operator value</var></a></td> 556 <td>evaluate an arithmetic, relational, or logical expression</td> 557 </tr> 558 559 <tr> 560 <td><a href="../www/command-line-options.html#evaluate-sequence">-evaluate-sequence <var>operator</var></a></td> 561 <td>evaluate an arithmetic, relational, or logical expression for an image sequence</td> 562 </tr> 563 564 <tr> 565 <td><a href="../www/command-line-options.html#extent">-extent <var>geometry</var></a></td> 566 <td>set the image size</td> 567 </tr> 568 569 <tr> 570 <td><a href="../www/command-line-options.html#extract">-extract <var>geometry</var></a></td> 571 <td>extract area from image</td> 572 </tr> 573 574 <tr> 575 <td><a href="../www/command-line-options.html#family">-family <var>name</var></a></td> 576 <td>render text with this font family</td> 577 </tr> 578 579 <tr> 580 <td><a href="../www/command-line-options.html#features">-features <var>distance</var></a></td> 581 <td>analyze image features (e.g. contract, correlations, etc.).</td> 582 </tr> 583 584 <tr> 585 <td><a href="../www/command-line-options.html#fft">-fft</a></td> 586 <td>implements the discrete Fourier transform (DFT)</td> 587 </tr> 588 589 <tr> 590 <td><a href="../www/command-line-options.html#fill">-fill <var>color</var></a></td> 591 <td>color to use when filling a graphic primitive</td> 592 </tr> 593 594 <tr> 595 <td><a href="../www/command-line-options.html#filter">-filter <var>type</var></a></td> 596 <td>use this filter when resizing an image</td> 597 </tr> 598 599 <tr> 600 <td><a href="../www/command-line-options.html#flatten">-flatten</a></td> 601 <td>flatten a sequence of images</td> 602 </tr> 603 604 <tr> 605 <td><a href="../www/command-line-options.html#flip">-flip</a></td> 606 <td>flip image in the vertical direction</td> 607 </tr> 608 609 <tr> 610 <td><a href="../www/command-line-options.html#floodfill">-floodfill <var>geometry color</var></a></td> 611 <td>floodfill the image with color</td> 612 </tr> 613 614 <tr> 615 <td><a href="../www/command-line-options.html#flop">-flop</a></td> 616 <td>flop image in the horizontal direction</td> 617 </tr> 618 619 <tr> 620 <td><a href="../www/command-line-options.html#font">-font <var>name</var></a></td> 621 <td>render text with this font</td> 622 </tr> 623 624 <tr> 625 <td><a href="../www/command-line-options.html#format_identify_">-format <var>string</var></a></td> 626 <td>output formatted image characteristics</td> 627 </tr> 628 629 <tr> 630 <td><a href="../www/command-line-options.html#frame">-frame <var>geometry</var></a></td> 631 <td>surround image with an ornamental border</td> 632 </tr> 633 634 <tr> 635 <td><a href="../www/command-line-options.html#function">-function <var>name</var></a></td> 636 <td>apply a function to the image</td> 637 </tr> 638 639 <tr> 640 <td><a href="../www/command-line-options.html#fuzz">-fuzz <var>distance</var></a></td> 641 <td>colors within this distance are considered equal</td> 642 </tr> 643 644 <tr> 645 <td><a href="../www/command-line-options.html#fx">-fx <var>expression</var></a></td> 646 <td>apply mathematical expression to an image channel(s)</td> 647 </tr> 648 649 <tr> 650 <td><a href="../www/command-line-options.html#gamma">-gamma <var>value</var></a></td> 651 <td>level of gamma correction</td> 652 </tr> 653 654 <tr> 655 <td><a href="../www/command-line-options.html#gaussian-blur">-gaussian-blur <var>geometry</var></a></td> 656 <td>reduce image noise and reduce detail levels</td> 657 </tr> 658 659 <tr> 660 <td><a href="../www/command-line-options.html#geometry">-geometry <var>geometry</var></a></td> 661 <td>preferred size or location of the image</td> 662 </tr> 663 664 <tr> 665 <td><a href="../www/command-line-options.html#gravity">-gravity <var>type</var></a></td> 666 <td>horizontal and vertical text placement</td> 667 </tr> 668 669 <tr> 670 <td><a href="../www/command-line-options.html#grayscale">-grayscale <var>method</var></a></td> 671 <td>convert image to grayscale</td> 672 </tr> 673 674 <tr> 675 <td><a href="../www/command-line-options.html#green-primary">-green-primary <var>point</var></a></td> 676 <td>chromaticity green primary point</td> 677 </tr> 678 679 <tr> 680 <td><a href="../www/command-line-options.html#help">-help</a></td> 681 <td>print program options</td> 682 </tr> 683 684 <tr> 685 <td><a href="../www/command-line-options.html#hough-lines">-hough-lines <var>geometry</var></a></td> 686 <td>identify lines in the image</td> 687 </tr> 688 689 <tr> 690 <td><a href="../www/command-line-options.html#identify">-identify</a></td> 691 <td>identify the format and characteristics of the image</td> 692 </tr> 693 694 <tr> 695 <td><a href="../www/command-line-options.html#ift">-ift</a></td> 696 <td>implements the inverse discrete Fourier transform (DFT)</td> 697 </tr> 698 699 <tr> 700 <td><a href="../www/command-line-options.html#implode">-implode <var>amount</var></a></td> 701 <td>implode image pixels about the center</td> 702 </tr> 703 704 <tr> 705 <td><a href="../www/command-line-options.html#insert">-insert <var>index</var></a></td> 706 <td>insert last image into the image sequence</td> 707 </tr> 708 709 <tr> 710 <td><a href="../www/command-line-options.html#intensity">-intensity <var>method</var></a></td> 711 <td>method to generate an intensity value from a pixel</td> 712 </tr> 713 714 <tr> 715 <td><a href="../www/command-line-options.html#intent">-intent <var>type</var></a></td> 716 <td>type of rendering intent when managing the image color</td> 717 </tr> 718 719 <tr> 720 <td><a href="../www/command-line-options.html#interlace">-interlace <var>type</var></a></td> 721 <td>type of image interlacing scheme</td> 722 </tr> 723 724 <tr> 725 <td><a href="../www/command-line-options.html#interline-spacing">-interline-spacing <var>value</var></a></td> 726 <td>the space between two text lines</td> 727 </tr> 728 729 <tr> 730 <td><a href="../www/command-line-options.html#interpolate">-interpolate <var>method</var></a></td> 731 <td>pixel color interpolation method</td> 732 </tr> 733 734 <tr> 735 <td><a href="../www/command-line-options.html#interword-spacing">-interword-spacing <var>value</var></a></td> 736 <td>the space between two words</td> 737 </tr> 738 739 <tr> 740 <td><a href="../www/command-line-options.html#kerning">-kerning <var>value</var></a></td> 741 <td>the space between two characters</td> 742 </tr> 743 744 <tr> 745 <td><a href="../www/command-line-options.html#colors">-kmeans <var>geometry</var></a></td> 746 <td>K means color reduction</td> 747 </tr> 748 749 <tr> 750 <td><a href="../www/command-line-options.html#kuwahara">-kuwahara <var>geometry</var></a></td> 751 <td>edge preserving noise reduction filter</td> 752 </tr> 753 754 <tr> 755 <td><a href="../www/command-line-options.html#label">-label <var>string</var></a></td> 756 <td>assign a label to an image</td> 757 </tr> 758 759 <tr> 760 <td><a href="../www/command-line-options.html#lat">-lat <var>geometry</var></a></td> 761 <td>local adaptive thresholding</td> 762 </tr> 763 764 <tr> 765 <td><a href="../www/command-line-options.html#layers">-layers <var>method</var></a></td> 766 <td>optimize or compare image layers</td> 767 </tr> 768 769 <tr> 770 <td><a href="../www/command-line-options.html#level">-level <var>value</var></a></td> 771 <td>adjust the level of image contrast</td> 772 </tr> 773 774 <tr> 775 <td><a href="../www/command-line-options.html#limit">-limit <var>type value</var></a></td> 776 <td>pixel cache resource limit</td> 777 </tr> 778 779 <tr> 780 <td><a href="../www/command-line-options.html#linear-stretch">-linear-stretch <var>geometry</var></a></td> 781 <td>linear with saturation histogram stretch</td> 782 </tr> 783 784 <tr> 785 <td><a href="../www/command-line-options.html#liquid-rescale">-liquid-rescale <var>geometry</var></a></td> 786 <td>rescale image with seam-carving</td> 787 </tr> 788 789 <tr> 790 <td><a href="../www/command-line-options.html#list">-list <var>type</var></a></td> 791 <td>Color, Configure, Delegate, Format, Magic, Module, Resource, or Type</td> 792 </tr> 793 794 <tr> 795 <td><a href="../www/command-line-options.html#log">-log <var>format</var></a></td> 796 <td>format of debugging information</td> 797 </tr> 798 799 <tr> 800 <td><a href="../www/command-line-options.html#loop">-loop <var>iterations</var></a></td> 801 <td>add Netscape loop extension to your GIF animation</td> 802 </tr> 803 804 <tr> 805 <td><a href="../www/command-line-options.html#mattecolor">-mattecolor <var>color</var></a></td> 806 <td>frame color</td> 807 </tr> 808 809 <tr> 810 <td><a href="../www/command-line-options.html#median">-median <var>radius</var></a></td> 811 <td>apply a median filter to the image</td> 812 </tr> 813 814 <tr> 815 <td><a href="../www/command-line-options.html#mean-shift">-mean-shift <var>geometry</var></a></td> 816 <td>delineate arbitrarily shaped clusters in the image</td> 817 </tr> 818 819 <tr> 820 <td><a href="../www/command-line-options.html#metric">-metric <var>type</var></a></td> 821 <td>measure differences between images with this metric</td> 822 </tr> 823 824 <tr> 825 <td><a href="../www/command-line-options.html#mode">-mode <var>radius</var></a></td> 826 <td>make each pixel the 'predominant color' of the neighborhood</td> 827 </tr> 828 829 <tr> 830 <td><a href="../www/command-line-options.html#modulate">-modulate <var>value</var></a></td> 831 <td>vary the brightness, saturation, and hue</td> 832 </tr> 833 834 <tr> 835 <td><a href="../www/command-line-options.html#moments">-moments</a></td> 836 <td>display image moments.</td> 837 </tr> 838 839 <tr> 840 <td><a href="../www/command-line-options.html#monitor">-monitor</a></td> 841 <td>monitor progress</td> 842 </tr> 843 844 <tr> 845 <td><a href="../www/command-line-options.html#monochrome">-monochrome</a></td> 846 <td>transform image to black and white</td> 847 </tr> 848 849 <tr> 850 <td><a href="../www/command-line-options.html#morph">-morph <var>value</var></a></td> 851 <td>morph an image sequence</td> 852 </tr> 853 854 <tr> 855 <td><a href="../www/command-line-options.html#morphology">-morphology <var>method</var></a> <var>kernel</var></td> 856 <td>apply a morphology method to the image</td> 857 </tr> 858 859 <tr> 860 <td><a href="../www/command-line-options.html#motion-blur">-motion-blur <var>geometry</var></a></td> 861 <td>simulate motion blur</td> 862 </tr> 863 864 <tr> 865 <td><a href="../www/command-line-options.html#negate">-negate</a></td> 866 <td>replace each pixel with its complementary color </td> 867 </tr> 868 869 <tr> 870 <td><a href="../www/command-line-options.html#noise">-noise <var>radius</var></a></td> 871 <td>add or reduce noise in an image</td> 872 </tr> 873 874 <tr> 875 <td><a href="../www/command-line-options.html#normalize">-normalize</a></td> 876 <td>transform image to span the full range of colors</td> 877 </tr> 878 879 <tr> 880 <td><a href="../www/command-line-options.html#opaque">-opaque <var>color</var></a></td> 881 <td>change this color to the fill color</td> 882 </tr> 883 884 <tr> 885 <td><a href="../www/command-line-options.html#ordered-dither">-ordered-dither <var>NxN</var></a></td> 886 <td>ordered dither the image</td> 887 </tr> 888 889 <tr> 890 <td><a href="../www/command-line-options.html#orient">-orient <var>type</var></a></td> 891 <td>image orientation</td> 892 </tr> 893 894 <tr> 895 <td><a href="../www/command-line-options.html#page">-page <var>geometry</var></a></td> 896 <td>size and location of an image canvas (setting)</td> 897 </tr> 898 899 <tr> 900 <td><a href="../www/command-line-options.html#paint">-paint <var>radius</var></a></td> 901 <td>simulate an oil painting</td> 902 </tr> 903 904 <tr> 905 <td><a href="../www/command-line-options.html#perceptible">-perceptible</a></td> 906 <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> 907 </tr> 908 909 <tr> 910 <td><a href="../www/command-line-options.html#ping">-ping</a></td> 911 <td>efficiently determine image attributes</td> 912 </tr> 913 914 <tr> 915 <td><a href="../www/command-line-options.html#pointsize">-pointsize <var>value</var></a></td> 916 <td>font point size</td> 917 </tr> 918 919 <tr> 920 <td><a href="../www/command-line-options.html#polaroid">-polaroid <var>angle</var></a></td> 921 <td>simulate a Polaroid picture</td> 922 </tr> 923 924 <tr> 925 <td><a href="../www/command-line-options.html#poly">-poly <var>terms</var></a></td> 926 <td>build a polynomial from the image sequence and the corresponding terms (coefficients and degree pairs).</td> 927 </tr> 928 929 <tr> 930 <td><a href="../www/command-line-options.html#posterize">-posterize <var>levels</var></a></td> 931 <td>reduce the image to a limited number of color levels</td> 932 </tr> 933 934 <tr> 935 <td><a href="../www/command-line-options.html#precision">-precision <var>value</var></a></td> 936 <td>set the maximum number of significant digits to be printed</td> 937 </tr> 938 939 <tr> 940 <td><a href="../www/command-line-options.html#preview">-preview <var>type</var></a></td> 941 <td>image preview type</td> 942 </tr> 943 944 <tr> 945 <td><a href="../www/command-line-options.html#print">-print <var>string</var></a></td> 946 <td>interpret string and print to console</td> 947 </tr> 948 949 <tr> 950 <td><a href="../www/command-line-options.html#process">-process <var>image-filter</var></a></td> 951 <td>process the image with a custom image filter</td> 952 </tr> 953 954 <tr> 955 <td><a href="../www/command-line-options.html#profile">-profile <var>filename</var></a></td> 956 <td>add, delete, or apply an image profile</td> 957 </tr> 958 959 <tr> 960 <td><a href="../www/command-line-options.html#quality">-quality <var>value</var></a></td> 961 <td>JPEG/MIFF/PNG compression level</td> 962 </tr> 963 964 <tr> 965 <td><a href="../www/command-line-options.html#quantize">-quantize <var>colorspace</var></a></td> 966 <td>reduce image colors in this colorspace</td> 967 </tr> 968 969 <tr> 970 <td><a href="../www/command-line-options.html#quiet">-quiet</a></td> 971 <td>suppress all warning messages</td> 972 </tr> 973 974 <tr> 975 <td><a href="../www/command-line-options.html#radial-blur">-radial-blur <var>angle</var></a></td> 976 <td>radial blur the image</td> 977 </tr> 978 979 <tr> 980 <td><a href="../www/command-line-options.html#raise">-raise <var>value</var></a></td> 981 <td>lighten/darken image edges to create a 3-D effect</td> 982 </tr> 983 984 <tr> 985 <td><a href="../www/command-line-options.html#random-threshold">-random-threshold <var>low, high</var></a></td> 986 <td>random threshold the image</td> 987 </tr> 988 989 <tr> 990 <td><a href="../www/command-line-options.html#range-threshold">-range-threshold <var>low-black, low-white, high-white, high-black</var></a></td> 991 <td>perform either hard or soft thresholding within some range of values in an image</td> 992 </tr> 993 994 <tr> 995 <td><a href="../www/command-line-options.html#read-mask">-read-mask <var>filename</var></a></td> 996 <td>associate a read mask with the image</td> 997 </tr> 998 999 <tr> 1000 <td><a href="../www/command-line-options.html#red-primary">-red-primary <var>point</var></a></td> 1001 <td>chromaticity red primary point</td> 1002 </tr> 1003 1004 <tr> 1005 <td><a href="../www/command-line-options.html#regard-warnings">-regard-warnings</a></td> 1006 <td>pay attention to warning messages.</td> 1007 </tr> 1008 1009 <tr> 1010 <td><a href="../www/command-line-options.html#region">-region <var>geometry</var></a></td> 1011 <td>apply options to a portion of the image</td> 1012 </tr> 1013 1014 <tr> 1015 <td><a href="../www/command-line-options.html#remap">-remap <var>filename</var></a></td> 1016 <td>transform image colors to match this set of colors</td> 1017 </tr> 1018 1019 <tr> 1020 <td><a href="../www/command-line-options.html#render">-render</a></td> 1021 <td>render vector graphics</td> 1022 </tr> 1023 1024 <tr> 1025 <td><a href="../www/command-line-options.html#repage">-repage <var>geometry</var></a></td> 1026 <td>size and location of an image canvas</td> 1027 </tr> 1028 1029 <tr> 1030 <td><a href="../www/command-line-options.html#resample">-resample <var>geometry</var></a></td> 1031 <td>change the resolution of an image</td> 1032 </tr> 1033 1034 <tr> 1035 <td><a href="../www/command-line-options.html#resize">-resize <var>geometry</var></a></td> 1036 <td>resize the image</td> 1037 </tr> 1038 1039 <tr> 1040 <td><a href="../www/command-line-options.html#respect-parentheses">-respect-parentheses</a></td> 1041 <td>settings remain in effect until parenthesis boundary.</td> 1042 </tr> 1043 1044 <tr> 1045 <td><a href="../www/command-line-options.html#roll">-roll <var>geometry</var></a></td> 1046 <td>roll an image vertically or horizontally</td> 1047 </tr> 1048 1049 <tr> 1050 <td><a href="../www/command-line-options.html#rotate">-rotate <var>degrees</var></a></td> 1051 <td>apply Paeth rotation to the image</td> 1052 </tr> 1053 1054 <tr> 1055 <td><a href="../www/command-line-options.html#sample">-sample <var>geometry</var></a></td> 1056 <td>scale image with pixel sampling</td> 1057 </tr> 1058 1059 <tr> 1060 <td><a href="../www/command-line-options.html#sampling-factor">-sampling-factor <var>geometry</var></a></td> 1061 <td>horizontal and vertical sampling factor</td> 1062 </tr> 1063 1064 <tr> 1065 <td><a href="../www/command-line-options.html#scale">-scale <var>geometry</var></a></td> 1066 <td>scale the image</td> 1067 </tr> 1068 1069 <tr> 1070 <td><a href="../www/command-line-options.html#scene">-scene <var>value</var></a></td> 1071 <td>image scene number</td> 1072 </tr> 1073 1074 <tr> 1075 <td><a href="../www/command-line-options.html#seed">-seed <var>value</var></a></td> 1076 <td>seed a new sequence of pseudo-random numbers</td> 1077 </tr> 1078 1079 <tr> 1080 <td><a href="../www/command-line-options.html#segment">-segment <var>values</var></a></td> 1081 <td>segment an image</td> 1082 </tr> 1083 1084 <tr> 1085 <td><a href="../www/command-line-options.html#threshold">-selective-blur <var>geometry</var></a></td> 1086 <td>selectively blur pixels within a contrast threshold</td> 1087 </tr> 1088 1089 <tr> 1090 <td><a href="../www/command-line-options.html#separate">-separate</a></td> 1091 <td>separate an image channel into a grayscale image</td> 1092 </tr> 1093 1094 <tr> 1095 <td><a href="../www/command-line-options.html#sepia-tone">-sepia-tone <var>threshold</var></a></td> 1096 <td>simulate a sepia-toned photo</td> 1097 </tr> 1098 1099 <tr> 1100 <td><a href="../www/command-line-options.html#set">-set <var>attribute value</var></a></td> 1101 <td>set an image attribute</td> 1102 </tr> 1103 1104 <tr> 1105 <td><a href="../www/command-line-options.html#shade">-shade <var>degrees</var></a></td> 1106 <td>shade the image using a distant light source</td> 1107 </tr> 1108 1109 <tr> 1110 <td><a href="../www/command-line-options.html#shadow">-shadow <var>geometry</var></a></td> 1111 <td>simulate an image shadow</td> 1112 </tr> 1113 1114 <tr> 1115 <td><a href="../www/command-line-options.html#sharpen">-sharpen <var>geometry</var></a></td> 1116 <td>sharpen the image</td> 1117 </tr> 1118 1119 <tr> 1120 <td><a href="../www/command-line-options.html#shave">-shave <var>geometry</var></a></td> 1121 <td>shave pixels from the image edges</td> 1122 </tr> 1123 1124 <tr> 1125 <td><a href="../www/command-line-options.html#shear">-shear <var>geometry</var></a></td> 1126 <td>slide one edge of the image along the X or Y axis</td> 1127 </tr> 1128 1129 <tr> 1130 <td><a href="../www/command-line-options.html#sigmoidal">-sigmoidal-contrast <var>geometry</var></a></td> 1131 <td>increase the contrast without saturating highlights or shadows</td> 1132 </tr> 1133 1134 <tr> 1135 <td><a href="../www/command-line-options.html#smush">-smush <var>offset</var></a></td> 1136 <td>smush an image sequence together</td> 1137 </tr> 1138 1139 <tr> 1140 <td><a href="../www/command-line-options.html#size">-size <var>geometry</var></a></td> 1141 <td>width and height of image</td> 1142 </tr> 1143 1144 <tr> 1145 <td><a href="../www/command-line-options.html#sketch">-sketch <var>geometry</var></a></td> 1146 <td>simulate a pencil sketch</td> 1147 </tr> 1148 1149 <tr> 1150 <td><a href="../www/command-line-options.html#solarize">-solarize <var>threshold</var></a></td> 1151 <td>negate all pixels above the threshold level</td> 1152 </tr> 1153 1154 <tr> 1155 <td><a href="../www/command-line-options.html#sort-pixels">-sort-pixels</a></td> 1156 <td>sorts pixels within each scanline in ascending order of intensity</td> 1157 </tr> 1158 1159 <tr> 1160 <td><a href="../www/command-line-options.html#splice">-splice <var>geometry</var></a></td> 1161 <td>splice the background color into the image</td> 1162 </tr> 1163 1164 <tr> 1165 <td><a href="../www/command-line-options.html#spread">-spread <var>radius</var></a></td> 1166 <td>displace image pixels by a random amount</td> 1167 </tr> 1168 1169 <tr> 1170 <td><a href="../www/command-line-options.html#statistic">-statistic <var>type</var> <var>geometry</var></a></td> 1171 <td>replace each pixel with corresponding statistic from the neighborhood</td> 1172 </tr> 1173 1174 <tr> 1175 <td><a href="../www/command-line-options.html#strip">-strip</a></td> 1176 <td>strip image of all profiles and comments</td> 1177 </tr> 1178 1179 <tr> 1180 <td><a href="../www/command-line-options.html#stroke">-stroke <var>color</var></a></td> 1181 <td>graphic primitive stroke color</td> 1182 </tr> 1183 1184 <tr> 1185 <td><a href="../www/command-line-options.html#strokewidth">-strokewidth <var>value</var></a></td> 1186 <td>graphic primitive stroke width</td> 1187 </tr> 1188 1189 <tr> 1190 <td><a href="../www/command-line-options.html#stretch">-stretch <var>type</var></a></td> 1191 <td>render text with this font stretch</td> 1192 </tr> 1193 1194 <tr> 1195 <td><a href="../www/command-line-options.html#style">-style <var>type</var></a></td> 1196 <td>render text with this font style</td> 1197 </tr> 1198 1199 <tr> 1200 <td><a href="../www/command-line-options.html#swap">-swap <var>indexes</var></a></td> 1201 <td>swap two images in the image sequence</td> 1202 </tr> 1203 1204 <tr> 1205 <td><a href="../www/command-line-options.html#swirl">-swirl <var>degrees</var></a></td> 1206 <td>swirl image pixels about the center</td> 1207 </tr> 1208 1209 <tr> 1210 <td><a href="../www/command-line-options.html#synchronize">-synchronize</a></td> 1211 <td>synchronize image to storage device</td> 1212 </tr> 1213 1214 <tr> 1215 <td><a href="../www/command-line-options.html#taint">-taint</a></td> 1216 <td>mark the image as modified</td> 1217 </tr> 1218 1219 <tr> 1220 <td><a href="../www/command-line-options.html#texture">-texture <var>filename</var></a></td> 1221 <td>name of texture to tile onto the image background</td> 1222 </tr> 1223 1224 <tr> 1225 <td><a href="../www/command-line-options.html#threshold">-threshold <var>value</var></a></td> 1226 <td>threshold the image</td> 1227 </tr> 1228 1229 <tr> 1230 <td><a href="../www/command-line-options.html#thumbnail">-thumbnail <var>geometry</var></a></td> 1231 <td>create a thumbnail of the image</td> 1232 </tr> 1233 1234 <tr> 1235 <td><a href="../www/command-line-options.html#tile">-tile <var>filename</var></a></td> 1236 <td>tile image when filling a graphic primitive</td> 1237 </tr> 1238 1239 <tr> 1240 <td><a href="../www/command-line-options.html#tile-offset">-tile-offset <var>geometry</var></a></td> 1241 <td>set the image tile offset</td> 1242 </tr> 1243 1244 <tr> 1245 <td><a href="../www/command-line-options.html#tint">-tint <var>value</var></a></td> 1246 <td>tint the image with the fill color</td> 1247 </tr> 1248 1249 <tr> 1250 <td><a href="../www/command-line-options.html#transform">-transform</a></td> 1251 <td>affine transform image</td> 1252 </tr> 1253 1254 <tr> 1255 <td><a href="../www/command-line-options.html#transparent">-transparent <var>color</var></a></td> 1256 <td>make this color transparent within the image</td> 1257 </tr> 1258 1259 <tr> 1260 <td><a href="../www/command-line-options.html#transparent-color">-transparent-color <var>color</var></a></td> 1261 <td>transparent color</td> 1262 </tr> 1263 1264 <tr> 1265 <td><a href="../www/command-line-options.html#transpose">-transpose</a></td> 1266 <td>flip image in the vertical direction and rotate 90 degrees</td> 1267 </tr> 1268 1269 <tr> 1270 <td><a href="../www/command-line-options.html#transverse">-transverse</a></td> 1271 <td>flop image in the horizontal direction and rotate 270 degrees</td> 1272 </tr> 1273 1274 <tr> 1275 <td><a href="../www/command-line-options.html#treedepth">-treedepth <var>value</var></a></td> 1276 <td>color tree depth</td> 1277 </tr> 1278 1279 <tr> 1280 <td><a href="../www/command-line-options.html#trim">-trim</a></td> 1281 <td>trim image edges</td> 1282 </tr> 1283 1284 <tr> 1285 <td><a href="../www/command-line-options.html#type">-type <var>type</var></a></td> 1286 <td>image type</td> 1287 </tr> 1288 1289 <tr> 1290 <td><a href="../www/command-line-options.html#undercolor">-undercolor <var>color</var></a></td> 1291 <td>annotation bounding box color</td> 1292 </tr> 1293 1294 <tr> 1295 <td><a href="../www/command-line-options.html#unique-colors">-unique-colors</a></td> 1296 <td>discard all but one of any pixel color.</td> 1297 </tr> 1298 1299 <tr> 1300 <td><a href="../www/command-line-options.html#units">-units <var>type</var></a></td> 1301 <td>the units of image resolution</td> 1302 </tr> 1303 1304 <tr> 1305 <td><a href="../www/command-line-options.html#unsharp">-unsharp <var>geometry</var></a></td> 1306 <td>sharpen the image</td> 1307 </tr> 1308 1309 <tr> 1310 <td><a href="../www/command-line-options.html#verbose">-verbose</a></td> 1311 <td>print detailed information about the image</td> 1312 </tr> 1313 1314 <tr> 1315 <td><a href="../www/command-line-options.html#version">-version</a></td> 1316 <td>print version information</td> 1317 </tr> 1318 1319 <tr> 1320 <td><a href="../www/command-line-options.html#view">-view</a></td> 1321 <td>FlashPix viewing transforms</td> 1322 </tr> 1323 1324 <tr> 1325 <td><a href="../www/command-line-options.html#vignette">-vignette <var>geometry</var></a></td> 1326 <td>soften the edges of the image in vignette style</td> 1327 </tr> 1328 1329 <tr> 1330 <td><a href="../www/command-line-options.html#virtual-pixel">-virtual-pixel <var>method</var></a></td> 1331 <td>access method for pixels outside the boundaries of the image</td> 1332 </tr> 1333 1334 <tr> 1335 <td><a href="../www/command-line-options.html#wave">-wave <var>geometry</var></a></td> 1336 <td>alter an image along a sine wave</td> 1337 </tr> 1338 1339 <tr> 1340 <td><a href="../www/command-line-options.html#wavelet">-wavelet-denoise <var>threshold</var></a></td> 1341 <td>removes noise from the image using a wavelet transform</td> 1342 </tr> 1343 1344 <tr> 1345 <td><a href="../www/command-line-options.html#weight">-weight <var>type</var></a></td> 1346 <td>render text with this font weight</td> 1347 </tr> 1348 1349 <tr> 1350 <td><a href="../www/command-line-options.html#white-point">-white-point <var>point</var></a></td> 1351 <td>chromaticity white point</td> 1352 </tr> 1353 1354 <tr> 1355 <td><a href="../www/command-line-options.html#white-threshold">-white-threshold <var>value</var></a></td> 1356 <td>force all pixels above the threshold into white</td> 1357 </tr> 1358 1359 <tr> 1360 <td><a href="../www/command-line-options.html#write">-write <var>filename</var></a></td> 1361 <td>write images to this file</td> 1362 </tr> 1363 1364 <tr> 1365 <td><a href="../www/command-line-options.html#write-mask">-write-mask <var>filename</var></a></td> 1366 <td>associate a write mask with the image</td> 1367 </tr> 1368 1369</table> 1370</div> 1371</div> 1372 </div> 1373 </main><!-- /.container --> 1374 <footer class="magick-footer"> 1375 <div class="container-fluid"> 1376 <a href="../www/security-policy.html">Security</a> • 1377 <a href="../www/news.html">News</a> 1378 1379 <a href="convert.html#"><img class="d-inline" id="wand" alt="And Now a Touch of Magick" width="16" height="16" src="../images/wand.ico"/></a> 1380 1381 <a href="../www/links.html">Related</a> • 1382 <a href="../www/sitemap.html">Sitemap</a> 1383 <br/> 1384 <a 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