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Cristy596512b2018-07-08 08:50:14 -040078
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cristyd2432012015-05-04 23:15:15 +000083<div class="magick-header">
cristy85893d32015-05-06 13:44:09 +000084<p class="text-center"><a href="index.html#features">Features and Capabilities</a><a href="index.html#news">News</a><a href="index.html#community">Community</a></p>
cristy8ee7f242013-06-20 16:08:44 +000085
Cristy49380402017-06-29 11:24:55 -040086<p class="lead magick-description"><a href="images/wizard.png" title="And Now a Touch of Magick"><img class="img-fluid magick-icon" id="logo" alt="And Now a Touch of Magick" width="265" height="352" src="images/wizard.jpg" /></a>
Cristy596512b2018-07-08 08:50:14 -040087Use ImageMagick<sup><a href="http://tarr.uspto.gov/servlet/tarr?regser=serial&amp;entry=78333969">&#174;</a></sup> to create, edit, compose, or convert bitmap images. It can read and write images in a variety of <a href="www/formats.html">formats</a> (over 200) including PNG, JPEG, GIF, HEIC, TIFF, <a href="www/motion-picture.html">DPX</a>, <a href="www/high-dynamic-range.html">EXR</a>, 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.</p>
cristy3ed852e2009-09-05 21:47:34 +000088
Cristy13afdf02017-12-08 12:19:49 -050089<p>The functionality of ImageMagick is typically utilized from the <a href="www/command-line-processing.html">command-line</a> or you can use the features from programs written in your favorite language. Choose from these interfaces: <a href="www/develop.html#ada">G2F</a> (Ada), <a href="www/develop.html#c">MagickCore</a> (C), <a href="www/develop.html#c">MagickWand</a> (C), <a href="www/develop.html#ch">ChMagick</a> (Ch), <a href="www/develop.html#com_">ImageMagickObject</a> (COM+), <a href="www/develop.html#c__">Magick++</a> (C++), <a href="www/develop.html#java">JMagick</a> (Java), <a href="www/develop.html#julia">JuliaIO</a> (Julia), <a href="www/develop.html#lisp">L-Magick</a> (Lisp), <a href="www/develop.html#lua">Lua</a> (LuaJIT), <a href="www/develop.html#neko">NMagick</a> (Neko/haXe), <a href="www/develop.html#dot-net">Magick.NET</a> (.NET), <a href="www/develop.html#pascal">PascalMagick</a> (Pascal), <a href="www/develop.html#perl">PerlMagick</a> (Perl), <a href="www/develop.html#php">MagickWand for PHP</a> (PHP), <a href="www/develop.html#php">IMagick</a> (PHP), <a href="www/develop.html#python">PythonMagick</a> (Python), <a href="www/develop.html#r">magick</a> (R), <a href="www/develop.html#ruby">RMagick</a> (Ruby), or <a href="www/develop.html#tcl">TclMagick</a> (Tcl/TK). With a language interface, use ImageMagick to modify or create images dynamically and <var>automagically</var>.</p>
cristy6e51a242015-06-07 14:41:36 +000090<p>ImageMagick utilizes multiple computational threads to increase performance and can read, process, or write mega-, giga-, or tera-pixel image sizes.</p>
Cristya2276362018-09-09 10:28:40 -040091<p>ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you may use, copy, modify, and distribute in both open and proprietary applications. It is distributed under the Apache 2.0 <a href="www/license.html">license</a>.</p>
cristyc3186d52010-06-04 13:55:23 +000092
Cristy596512b2018-07-08 08:50:14 -040093<p>The ImageMagick development process ensures a stable API and <a href="https://abi-laboratory.pro/tracker/timeline/imagemagick/">ABI</a>. Before each ImageMagick release, we perform a comprehensive security assessment that includes <a href="https://github.com/google/sanitizers/wiki/AddressSanitizer">memory error</a>, <a href="https://github.com/google/sanitizers/wiki/ThreadSanitizer">thread data race</a> detection, and continuous <a href="https://github.com/google/oss-fuzz">fuzzing</a> to help prevent security vulnerabilities.</p>
cristya8e6cae2011-03-10 00:48:29 +000094
Cristya2276362018-09-09 10:28:40 -040095<p>The current release is ImageMagick <a href="www/download.html">7.0.8-11</a>. It runs on <a href="www/download.html#unix">Linux</a>, <a href="www/download.html#windows">Windows</a>, <a href="www/download.html#macosx">Mac Os X</a>, <a href="www/download.html#iOS">iOS</a>, Android OS, and others.</p>
cristya8e6cae2011-03-10 00:48:29 +000096
Cristya2276362018-09-09 10:28:40 -040097<p>The authoritative ImageMagick web site is <a href="./">https://imagemagick.org</a>. The authoritative source code repository is <a href="https://github.com/ImageMagick">https://github.com/ImageMagick</a>. We maintain a source code mirror at <a href="https://gitlab.com/ImageMagick">https://gitlab.com/ImageMagick</a>.</p>
Cristy1f1f3a02016-06-01 07:25:42 -040098
Cristyb7f455a2017-03-03 19:30:34 -050099<p>We continue to maintain the legacy release of ImageMagick, version 6, at <a href="https://legacy.imagemagick.org/">https://legacy.imagemagick.org</a>.</p>
cristyd2432012015-05-04 23:15:15 +0000100
Cristy9848db82017-12-17 09:43:57 -0500101<h2 class="magick-post-title"><a class="anchor" id="features"></a>Features and Capabilities</h2>
Cristya2276362018-09-09 10:28:40 -0400102<p>Here are just a few <a href="./www/examples.html">examples</a> of what ImageMagick can do for you:</p>
cristyd2432012015-05-04 23:15:15 +0000103<div class="table-responsive">
Cristy49380402017-06-29 11:24:55 -0400104<table class="table table-sm table-striped">
cristyd2432012015-05-04 23:15:15 +0000105 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500106 <td><a href="./Usage/anim_basics/">Animation</a></td>
Cristye93be682015-11-26 09:07:51 -0500107 <td>create a GIF animation sequence from a group of images.</td>
cristyd2432012015-05-04 23:15:15 +0000108 </tr>
109 <tr>
Cristya2276362018-09-09 10:28:40 -0400110 <td><a href="./www/color-management.html">Color management</a></td>
Cristye93be682015-11-26 09:07:51 -0500111 <td>accurate color management with color profiles or in lieu of-- built-in gamma compression or expansion as demanded by the colorspace.</td>
cristyd2432012015-05-04 23:15:15 +0000112 </tr>
113 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500114 <td><a href="www/command-line-processing.html">Command-line processing</a></td>
Cristyde27d762016-01-02 12:56:44 -0500115 <td>utilize ImageMagick from the command-line.</td>
116 </tr>
117 <tr>
Cristye09ed312016-03-06 08:07:39 -0500118 <td><a href="https://en.wikipedia.org/wiki/Complex_text_layout">Complex text layout</a></td>
119 <td>bidirectional text support and shaping.</td>
120 </tr>
121 <tr>
Cristya2276362018-09-09 10:28:40 -0400122 <td><a href="./www/composite.html">Composite</a></td>
Cristye93be682015-11-26 09:07:51 -0500123 <td>overlap one image over another.</td>
cristyd2432012015-05-04 23:15:15 +0000124 </tr>
125 <tr>
Cristya2276362018-09-09 10:28:40 -0400126 <td><a href="./www/connected-components.html">Connected component labeling</a></td>
Cristye93be682015-11-26 09:07:51 -0500127 <td>uniquely label connected regions in an image.</td>
cristyd2432012015-05-04 23:15:15 +0000128 </tr>
129 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500130 <td><a href="./Usage/crop/">Decorate</a></td>
cristyd2432012015-05-04 23:15:15 +0000131 <td>add a border or frame to an image.</td>
132 </tr>
133 <tr>
Cristycf3b1082017-12-09 18:04:00 -0500134 <td><a href="./Usage/transform/#vision">Delineate image features</a></td>
Cristya2276362018-09-09 10:28:40 -0400135 <td><a href="./https://imagemagick.org/discourse-server//viewtopic.html?f=4&amp;t=25405">Canny edge detection</a>, <a href="./https://imagemagick.org/discourse-server//viewtopic.html?f=4&amp;t=25476">Hough lines</a>.</td>
cristyd2432012015-05-04 23:15:15 +0000136 </tr>
137 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500138 <td><a href="./Usage/fourier/">Discrete Fourier transform</a></td>
Cristy51f5e902017-07-03 10:38:30 -0400139 <td>implements the forward and inverse <a href="https://en.wikipedia.org/wiki/Discrete_Fourier_transform">DFT</a>.</td>
cristyd2432012015-05-04 23:15:15 +0000140 </tr>
141 <tr>
Cristya2276362018-09-09 10:28:40 -0400142 <td><a href="./www/distribute-pixel-cache.html">Distributed pixel cache</a></td>
Cristye93be682015-11-26 09:07:51 -0500143 <td>offload intermediate pixel storage to one or more remote servers.</td>
144 </tr>
145 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500146 <td><a href="./Usage/draw/">Draw</a></td>
Cristye93be682015-11-26 09:07:51 -0500147 <td>add shapes or text to an image.</td>
148 </tr>
149 <tr>
Cristya2276362018-09-09 10:28:40 -0400150 <td><a href="./www/cipher.html">Encipher or decipher an image</a></td>
Cristye93be682015-11-26 09:07:51 -0500151 <td>convert ordinary images into unintelligible gibberish and back again.</td>
152 </tr>
153 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500154 <td><a href="www/convert.html">Format conversion</a></td>
155 <td>convert an image from one <a href="www/formats.html">format </a> to another (e.g. PNG to JPEG).</td>
Cristye93be682015-11-26 09:07:51 -0500156 </tr>
157 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500158 <td><a href="./Usage/distorts/">Generalized pixel distortion</a></td>
Cristye93be682015-11-26 09:07:51 -0500159 <td>correct for, or induce image distortions including perspective.</td>
160 </tr>
161 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500162 <td><a href="www/architecture.html#distributed">Heterogeneous distributed processing</a></td>
Cristya2276362018-09-09 10:28:40 -0400163 <td>certain algorithms are <a href="./www/opencl.html">OpenCL</a>-enabled to take advantage of speed-ups offered by executing in concert across heterogeneous platforms consisting of CPUs, GPUs, and other processors.</td>
Cristye93be682015-11-26 09:07:51 -0500164 </tr>
165 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500166 <td><a href="www/high-dynamic-range.html">High dynamic-range images</a></td>
Cristye93be682015-11-26 09:07:51 -0500167 <td>accurately represent the wide range of intensity levels found in real scenes ranging from the brightest direct sunlight to the deepest darkest shadows.</td>
168 </tr>
169 <tr>
Cristya2276362018-09-09 10:28:40 -0400170 <td><a href="./www/fx.html">Image calculator</a></td>
Cristye93be682015-11-26 09:07:51 -0500171 <td>apply a mathematical expression to an image or image channels.</td>
cristyd2432012015-05-04 23:15:15 +0000172 </tr>
173 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500174 <td><a href="www/gradient.html">Image gradients</a></td>
Cristy882d9f42015-10-29 16:48:39 -0400175 <td>create a gradual blend of two colors whose shape is horizontal, vertical, circular, or elliptical.</td>
176 </tr>
177 <tr>
Cristya2276362018-09-09 10:28:40 -0400178 <td><a href="./www/identify.html">Image identification</a></td>
cristyd2432012015-05-04 23:15:15 +0000179 <td>describe the format and attributes of an image.</td>
180 </tr>
181 <tr>
Cristy9017f3a2017-01-21 10:51:11 -0500182 <td><a href="www/download.html#iOS">ImageMagick on the iPhone</a></td>
Cristy51f5e902017-07-03 10:38:30 -0400183 <td>convert, edit, or compose images on your <a href="https://www.apple.com/ios/">iOS</a> device such as the iPhone or iPad.</td>
cristyd2432012015-05-04 23:15:15 +0000184 </tr>
185 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500186 <td><a href="www/architecture.html#tera-pixel">Large image support</a></td>
cristyd2432012015-05-04 23:15:15 +0000187 <td>read, process, or write mega-, giga-, or tera-pixel image sizes.</td>
188 </tr>
189 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500190 <td><a href="www/montage.html">Montage</a></td>
Cristye93be682015-11-26 09:07:51 -0500191 <td>juxtapose image thumbnails on an image canvas.</td>
192 </tr>
193 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500194 <td><a href="./Usage/morphology/">Morphology of shapes</a></td>
Cristye93be682015-11-26 09:07:51 -0500195 <td>extract features, describe shapes, and recognize patterns in images.</td>
196 </tr>
197 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500198 <td><a href="www/motion-picture.html">Motion picture support</a></td>
Cristye93be682015-11-26 09:07:51 -0500199 <td>read and write the common image formats used in digital film work.</td>
200 </tr>
201 <tr>
Cristycf3b1082017-12-09 18:04:00 -0500202 <td><a href="./Usage/transform/#vision">Noise and color reduction</a></td>
Cristya2276362018-09-09 10:28:40 -0400203 <td><a href="./https://imagemagick.org/discourse-server//viewtopic.html?f=4&amp;t=26480">Kuwahara Filter</a>, <a href="./https://imagemagick.org/discourse-server//viewtopic.html?f=4&amp;t=25504">mean-shift</a>.</td>
Cristye93be682015-11-26 09:07:51 -0500204 </tr>
205 <tr>
206 <td><a href="http://www.fmwconcepts.com/misc_tests/perceptual_hash_test_results_510/index.html">Perceptual hash</a></td>
207 <td>map visually identical images to the same or similar hash-- useful in image retrieval, authentication, indexing, or copy detection as well as digital watermarking.</td>
208 </tr>
209 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500210 <td><a href="./Usage/blur/">Special effects</a></td>
Cristye93be682015-11-26 09:07:51 -0500211 <td>blur, sharpen, threshold, or tint an image.</td>
212 </tr>
213 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500214 <td><a href="./Usage/text/">Text &amp; comments</a></td>
Cristye93be682015-11-26 09:07:51 -0500215 <td>insert descriptive or artistic text in an image.</td>
216 </tr>
217 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500218 <td><a href="www/architecture.html#threads">Threads of execution support</a></td>
Cristya2276362018-09-09 10:28:40 -0400219 <td>ImageMagick is thread safe and most internal algorithms execute in <a href="./www/openmp.html">parallel</a> to take advantage of speed-ups offered by multicore processor chips.</td>
cristyd2432012015-05-04 23:15:15 +0000220 </tr>
221 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500222 <td><a href="./Usage/resize/">Transform</a></td>
Cristye93be682015-11-26 09:07:51 -0500223 <td>resize, rotate, deskew, crop, flip or trim an image.</td>
cristyd2432012015-05-04 23:15:15 +0000224 </tr>
225 <tr>
Cristy8fe3d7b2017-12-09 15:53:23 -0500226 <td><a href="./Usage/masking/">Transparency</a></td>
Cristye93be682015-11-26 09:07:51 -0500227 <td>render portions of an image invisible.</td>
cristyd2432012015-05-04 23:15:15 +0000228 </tr>
229 <tr>
Cristy6549abb2016-11-10 08:25:55 -0500230 <td><a href="www/architecture.html#virtual-pixels">Virtual pixel support</a></td>
Cristy13afdf02017-12-08 12:19:49 -0500231 <td>convenient access to pixels outside the image boundaries.</td>
cristyd2432012015-05-04 23:15:15 +0000232 </tr>
233</table>
cristyd43a46b2010-01-21 02:13:41 +0000234</div>
cristy3ed852e2009-09-05 21:47:34 +0000235
Cristy8fe3d7b2017-12-09 15:53:23 -0500236<p><a href="./Usage/">Examples of ImageMagick Usage</a> shows how to use ImageMagick from the <a href="www/command-line-processing.html">command-line</a> to accomplish any of these tasks and much more. Also, see <a href="http://www.fmwconcepts.com/imagemagick/">Fred's ImageMagick Scripts</a>: a plethora of command-line scripts that perform geometric transforms, blurs, sharpens, edging, noise removal, and color manipulations. With <a href="https://github.com/dlemstra/Magick.NET">Magick.NET</a>, use ImageMagick without having to install ImageMagick on your server or desktop.</p>
cristy3ed852e2009-09-05 21:47:34 +0000237
Cristy9848db82017-12-17 09:43:57 -0500238<h2 class="magick-post-title"><a class="anchor" id="news"></a>News</h2>
cristy1efc1ab2011-08-01 14:47:02 +0000239
Cristya2276362018-09-09 10:28:40 -0400240<p>Now that ImageMagick version 7 is released, we continue to maintain the legacy release of ImageMagick, version 6, at <a href="https://legacy.imagemagick.org/">https://legacy.imagemagick.org</a>. Learn how ImageMagick version 7 differs from previous versions with our <a href="./www/porting.html">porting guide</a>.</p>
Cristy912a9222016-06-17 15:37:28 -0400241
Cristy6549abb2016-11-10 08:25:55 -0500242<p>ImageMagick best practices <strong>strongly</strong> encourages you to configure a <a href="www/security-policy.html">security policy</a> that suits your local environment.</p>
cristy1efc1ab2011-08-01 14:47:02 +0000243
Cristy8871ec32017-12-31 20:57:02 -0500244<p>As an analog to linear (RGB) and non-linear (sRGB) color colorspaces, as of ImageMagick 7.0.7-17, we introduce the LinearGray colorspace. Gray is non-linear grayscale and LinearGray is linear (e.g. -colorspace linear-gray).</p>
245
Cristy13afdf02017-12-08 12:19:49 -0500246<p>Want more performance from ImageMagick? Try these options:</p>
247
248<ul>
Cristy72727872017-12-08 15:08:14 -0500249<li>Add more memory to your system, see <a href="www/architecture.html#cache">the pixel cache</a>;</li>
Cristy596512b2018-07-08 08:50:14 -0400250<li>Add more cores to your system, see <a href="www/architecture.html#threads">threads of execution support</a>;</li>
Cristy72727872017-12-08 15:08:14 -0500251<li>push large images to a solid-state drive, see <a href="www/architecture.html#tera-pixel">large image support</a>.</li>
Cristy13afdf02017-12-08 12:19:49 -0500252</ul>
Cristy596512b2018-07-08 08:50:14 -0400253<p>If these options are prohibitive, you can reduce the quality of the image results. The default build is Q16 HDRI. If you disable <a href="www/high-dynamic-range.html">HDRI</a>, you use half the memory and instead of predominately floating point operations, you use the typically more efficient integer operations. The tradeoff is reduced precision and you cannot process out of range pixel values (e.g. negative). If you build the Q8 non-HDRI version of ImageMagick, you again reduce the memory requirements in half-- and once again there is a tradeoff, even less precision and no out of range pixel values. For a Q8 non-HDRI build of ImageMagick, use these <code>configure</code> script options: <code>--with-quantum-depth=8 --disable-hdri</code>.</p>
Cristy13afdf02017-12-08 12:19:49 -0500254
Cristy9848db82017-12-17 09:43:57 -0500255<h2 class="magick-post-title"><a class="anchor" id="community"></a>Community</h2>
Cristya2276362018-09-09 10:28:40 -0400256<p>To join the ImageMagick community, try the <a target="_blank" href="https://imagemagick.org/discourse-server/">discourse server</a>. You can review questions or comments (with informed responses) posed by ImageMagick users or ask your own questions. If you want to contribute image processing algorithms, other enhancements, or bug fixes, open an <a href="https://github.com/ImageMagick/ImageMagick/issues">issue</a>. </p>
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