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📄 AUTHORS.txt These active developers have made source code contributions to the ImageMagick project in the last few years: Cristy Principal architect of ImageMagick and still maintains the ImageMagick distribution. Dirk Lemstra Contributor to and maintainer of Magick++, OpenCL acceleration, and the Windows build. Bastien ROUCARIÈS Various patches from Debian downstream. Fred Weinhaus Contributed support and documentation for the discrete Fourier transform, connected component labeling, perceptual hash, kuwahara filter and others. Also provides scripts that perform some out-of-the ordinary image processing operations @ http://www.fmwconcepts.com/imagemagick/. He utilized his scripts as unit tests for ImageMagick version 7 to ensure version 6 compatibility before its release. These individuals have made source code contributions to the ImageMagick project in the past but are no longer active developers: Glenn Randers-Pehrson Contributed significantly to the utilities. Authored support for JNG, MNG, and PNG formats. Provided significant support for the BMP format. Made significant improvements to the documentation. Kelly Bergougnoux Authored the Cineon image coder (based on the existing DPX source). Nathan Brown Original author of the JP2 coder. Siu Chi Chan Accelerate numerous image filters with OpenCL under AMD, Intel, and NVidia. Adapted from MulticoreWare OpenCL contribution. Mike Chiarappa Created a Borland C++ Builder 6.0 build environment for ImageMagick. Troy Edwards Authored the source RPM spec file for ImageMagick. Jaroslav Fojtik Authored the CUT, ART, and MATLAB coder modules. Francis J. Franklin Ported the WMF coder to the libwmf 0.2 API. Markus Friedl Original author of Base64 encode/decode sources. Bob Friesenhahn Author of Magick++ (C++ API to ImageMagick). Author of module loader facility, automatic file identification (magic) support, Unix/Cygwin/MinGW configure/make facility, Windows setup.exe style installer, WMF renderer, C API documentation formatter, and the C, C++, and Perl test suites used by ImageMagick. David Harr Contributed (with Leonard Rosenthol) dash pattern, linecap stroking algorithm, and minor rendering improvements. Christopher R. Hawks Authored the PALM coder. Rick Mabry Contributed code to support filling drawn objects using a pattern image and major improvements to the web page (both content and appearance). Catalin Mihaila Contributed a ZX-Spectrum SCREEN$ reader. Chantal Racette, Laurentian University Sped up Sinc and Blackman filter kernels. EWA resampling code verification. William Radcliffe Author of the VisualMagick project configure facility for Visual C++. Author of FlashPix module. Author of the EMF, and META coders. Significant contributions to the MSL, JPEG, TIFF, SVG, and URL coders. Authored "process" module support. Wrote the micro-timer facility used by 'identify'. Ported module loader support to Windows. Significantly improved polygon rendering performance. Nicolas Robidoux, Laurentian University New ellipse clamping method and vertical/horizontal line preserving filters for EWA resampling. Sped up resampling filter kernels. Leonard Rosenthol Authored the 'conjure' utility and associated MSL execution environment. Provided MacOS support. Authored the CLIPBOARD, XCF, and PSD coders. Postscript and PDF expertise. Significant drawing enhancements including support for dash patterns, linecap stroking, clipping masks and a mask image. Kyle Shorter Original author of PerlMagick. Author of the LOCALE coder. Lars Ruben Skyum Contributed the -clippath functionality, improved color profile support, and re-wrote the PS3 coder. Anthony Thyssen Designed the ImageMagick 6.0 command line processing with parenthesis, image sequence operators, and GIF animation processing. Wrote the image perspective distortions (-distort) and resampling methods. Maintains a comprehensive set of examples of using ImageMagick at https://legacy.imagemagick.org/Usage/. Milan Votava Contributed support for Wireless BitMap, used in WAP - Wireless Access Protocol. We acknowledge these non-developer contributors to the ImageMagick project: Hanno Böck Contributed numerous fuzzed-images that revealed program flaws in ImageMagick. Additional checks were added to guard against nefarious image files. Rod Bogart and John W. Peterson, University of Utah Image compositing is loosely based on rlecomp of the Utah Raster Toolkit. Thomas R Crimmins Inventor of the eight hull algorithm used for speckle reduction. Michael Halle, Spatial Imaging Group at MIT Contributed the initial implementation of Alan Paeth's image rotation algorithm. Paul Heckbert, Carnegie Mellon University Image resizing is loosely based on Paul Heckbert's Zoom program. Peder Langlo, Hewlett Packard Made hundreds of suggestions and bug reports. Without Peder, this software would not be nearly as useful as it is today. David Pensak, E. I. du Pont de Nemours and Company For providing the computing environment that made developing ImageMagick possible. Paul Raveling, USC Information Sciences Institute The spatial subdivision color reduction algorithm is based on his Img software. Alvy Ray Smith and Eric Ray Lyons HWB color transform and algorithm. Alexander Zimmermann Responsible for the ImageMagick Linux binary distributions for many years. His efforts are very much appreciated.	5.63 KB	2026-02-22 21:26
📄 LICENSE ImageMagick License https://imagemagick.org/license/ Before we get to the text of the license, lets just review what the license says in simple terms: It allows you to: * freely download and use ImageMagick software, in whole or in part, for personal, company internal, or commercial purposes; * use ImageMagick software in packages or distributions that you create; * link against a library under a different license; * link code under a different license against a library under this license; * merge code into a work under a different license; * extend patent grants to any code using code under this license; * and extend patent protection. It forbids you to: * redistribute any piece of ImageMagick-originated software without proper attribution; * use any marks owned by ImageMagick Studio LLC in any way that might state or imply that ImageMagick Studio LLC endorses your distribution; * use any marks owned by ImageMagick Studio LLC in any way that might state or imply that you created the ImageMagick software in question. It requires you to: * include a copy of the license in any redistribution you may make that includes ImageMagick software; * provide clear attribution to ImageMagick Studio LLC for any distributions that include ImageMagick software. It does not require you to: * include the source of the ImageMagick software itself, or of any modifications you may have made to it, in any redistribution you may assemble that includes it; * submit changes that you make to the software back to the ImageMagick Studio LLC (though such feedback is encouraged). A few other clarifications include: * ImageMagick is freely available without charge; * you may include ImageMagick on a DVD as long as you comply with the terms of the license; * you can give modified code away for free or sell it under the terms of the ImageMagick license or distribute the result under a different license, but you need to acknowledge the use of the ImageMagick software; * the license is compatible with the GPL V3. * when exporting the ImageMagick software, review its export classification. Terms and Conditions for Use, Reproduction, and Distribution The legally binding and authoritative terms and conditions for use, reproduction, and distribution of ImageMagick follow: Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization dedicated to making software imaging solutions freely available. 1. Definitions. License shall mean the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 of this document. Licensor shall mean the copyright owner or entity authorized by the copyright owner that is granting the License. Legal Entity shall mean the union of the acting entity and all other entities that control, are controlled by, or are under common control with that entity. For the purposes of this definition, control means (i) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the outstanding shares, or (iii) beneficial ownership of such entity. You (or Your) shall mean an individual or Legal Entity exercising permissions granted by this License. Source form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files. Object form shall mean any form resulting from mechanical transformation or translation of a Source form, including but not limited to compiled object code, generated documentation, and conversions to other media types. Work shall mean the work of authorship, whether in Source or Object form, made available under the License, as indicated by a copyright notice that is included in or attached to the work (an example is provided in the Appendix below). Derivative Works shall mean any work, whether in Source or Object form, that is based on (or derived from) the Work and for which the editorial revisions, annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. Contribution shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted to Licensor for inclusion in the Work by the copyright owner or by an individual or Legal Entity authorized to submit on behalf of the copyright owner. For the purposes of this definition, "submitted" means any form of electronic, verbal, or written communication sent to the Licensor or its representatives, including but not limited to communication on electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, the Licensor for the purpose of discussing and improving the Work, but excluding communication that is conspicuously marked or otherwise designated in writing by the copyright owner as Not a Contribution. Contributor shall mean Licensor and any individual or Legal Entity on behalf of whom a Contribution has been received by Licensor and subsequently incorporated within the Work. 2. Grant of Copyright License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare Derivative Works of, publicly display, publicly perform, sublicense, and distribute the Work and such Derivative Works in Source or Object form. 3. Grant of Patent License. Subject to the terms and conditions of this License, each Contributor hereby grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable (except as stated in this section) patent license to make, have made, use, offer to sell, sell, import, and otherwise transfer the Work, where such license applies only to those patent claims licensable by such Contributor that are necessarily infringed by their Contribution(s) alone or by combination of their Contribution(s) with the Work to which such Contribution(s) was submitted. If You institute patent litigation against any entity (including a cross-claim or counterclaim in a lawsuit) alleging that the Work or a Contribution incorporated within the Work constitutes direct or contributory patent infringement, then any patent licenses granted to You under this License for that Work shall terminate as of the date such litigation is filed. 4. Redistribution. You may reproduce and distribute copies of the Work or Derivative Works thereof in any medium, with or without modifications, and in Source or Object form, provided that You meet the following conditions: * You must give any other recipients of the Work or Derivative Works a copy of this License; and * You must cause any modified files to carry prominent notices stating that You changed the files; and * You must retain, in the Source form of any Derivative Works that You distribute, all copyright, patent, trademark, and attribution notices from the Source form of the Work, excluding those notices that do not pertain to any part of the Derivative Works; and * If the Work includes a "NOTICE" text file as part of its distribution, then any Derivative Works that You distribute must include a readable copy of the attribution notices contained within such NOTICE file, excluding those notices that do not pertain to any part of the Derivative Works, in at least one of the following places: within a NOTICE text file distributed as part of the Derivative Works; within the Source form or documentation, if provided along with the Derivative Works; or, within a display generated by the Derivative Works, if and wherever such third-party notices normally appear. The contents of the NOTICE file are for informational purposes only and do not modify the License. You may add Your own attribution notices within Derivative Works that You distribute, alongside or as an addendum to the NOTICE text from the Work, provided that such additional attribution notices cannot be construed as modifying the License. You may add Your own copyright statement to Your modifications and may provide additional or different license terms and conditions for use, reproduction, or distribution of Your modifications, or for any such Derivative Works as a whole, provided Your use, reproduction, and distribution of the Work otherwise complies with the conditions stated in this License. 5. Submission of Contributions. Unless You explicitly state otherwise, any Contribution intentionally submitted for inclusion in the Work by You to the Licensor shall be under the terms and conditions of this License, without any additional terms or conditions. Notwithstanding the above, nothing herein shall supersede or modify the terms of any separate license agreement you may have executed with Licensor regarding such Contributions. 6. Trademarks. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the Work and reproducing the content of the NOTICE file. 7. Disclaimer of Warranty. Unless required by applicable law or agreed to in writing, Licensor provides the Work (and each Contributor provides its Contributions) on an AS IS BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are solely responsible for determining the appropriateness of using or redistributing the Work and assume any risks associated with Your exercise of permissions under this License. 8. Limitation of Liability. In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall any Contributor be liable to You for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising as a result of this License or out of the use or inability to use the Work (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if such Contributor has been advised of the possibility of such damages. 9. Accepting Warranty or Additional Liability. While redistributing the Work or Derivative Works thereof, You may choose to offer, and charge a fee for, acceptance of support, warranty, indemnity, or other liability obligations and/or rights consistent with this License. However, in accepting such obligations, You may act only on Your own behalf and on Your sole responsibility, not on behalf of any other Contributor, and only if You agree to indemnify, defend, and hold each Contributor harmless for any liability incurred by, or claims asserted against, such Contributor by reason of your accepting any such warranty or additional liability. How to Apply the License to your Work To apply the ImageMagick License to your work, attach the following boilerplate notice, with the fields enclosed by brackets "[]" replaced with your own identifying information (don't include the brackets). The text should be enclosed in the appropriate comment syntax for the file format. We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. Copyright [yyyy] [name of copyright owner] Licensed under the ImageMagick License (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at https://imagemagick.org/license/ Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.	12.26 KB	2026-02-22 21:26
📄 NOTICE * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 1. ImageMagick copyright: Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization dedicated to making software imaging solutions freely available. You may not use this file except in compliance with the License. You may obtain a copy of the License at https://imagemagick.org/license/ Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. The full text of this license is available in the LICENSE file. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 2. E. I. du Pont de Nemours and Company copyright (ImageMagick was originally developed and distributed by E. I. du Pont de Nemours and Company): Copyright 1999 E. I. du Pont de Nemours and Company Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files ("ImageMagick"), to deal in ImageMagick without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of ImageMagick, and to permit persons to whom the ImageMagick is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of ImageMagick. The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall E. I. du Pont de Nemours and Company be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with ImageMagick or the use or other dealings in ImageMagick. Except as contained in this notice, the name of the E. I. du Pont de Nemours and Company shall not be used in advertising or otherwise to promote the sale, use or other dealings in ImageMagick without prior written authorization from the E. I. du Pont de Nemours and Company. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 3. OpenSSH copyright (this copyright is limited to magick/utility.c/ Base64Decode() and Base64Encode(),incorporated from the OpenSSH package): Copyright (c) 2000 Markus Friedl. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE AUTHOR \`\`AS IS\'\' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 4. Xfig copyright (this copyright is limited to the image patterns in magick/nt-base.c, incorporated from the XFig package): \| FIG : Facility for Interactive Generation of figures \| Copyright (c) 1985-1988 by Supoj Sutanthavibul \| Parts Copyright (c) 1989-2000 by Brian V. Smith \| Parts Copyright (c) 1991 by Paul King Any party obtaining a copy of these files is granted, free of charge, a full and unrestricted irrevocable, world-wide, paid up, royalty-free, nonexclusive right and license to deal in this software and documentation files (the "Software"), including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons who receive copies from any such party to do so, with the only requirement being that this copyright notice remains intact. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 5. ezXML copyright (This copyright is limited to code for reading XML files in magick/xml-tree.c, incorporated from the ezxml package): Copyright 2004-2006 Aaron Voisine <aaron@voisine.org> Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 6. GraphicsMagick copyright (this copyright is limited to the Windows installer and enhancements to the automake and autoconf configure scripts, incorporated from the GraphicsMagick package): Copyright (C) 2002 - 2009 GraphicsMagick Group Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 7. Magick++ copyright (this copyright is limited to the Magick++ API in the Magick++ folder): Copyright 1999 - 2002 Bob Friesenhahn <bfriesen@simple.dallas.tx.us> Permission is hereby granted, free of charge, to any person obtaining a copy of the source files and associated documentation files ("Magick++"), to deal in Magick++ without restriction, including without limitation of the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of Magick++, and to permit persons to whom the Magick++ is furnished to do so, subject to the following conditions: This copyright notice shall be included in all copies or substantial portions of Magick++. The copyright to Magick++ is retained by its author and shall not be subsumed or replaced by any other copyright. The software is provided "as is", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability,fitness for a particular purpose and noninfringement. In no event shall Bob Friesenhahn be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with Magick++ or the use or other dealings in Magick++. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 8. Thatcher Ulrich copyright (ImageMagick includes two fonts, PerlMagick/t/ttf/input.ttf and PerlMagick/demo/Generic.ttf under this copyright): Copyright: 2004-2007, Thatcher Ulrich <tu@tulrich.com> I have placed these fonts in the Public Domain. This is all 100% my own work. Usage is totally unrestricted. If you want to make derivative works for any purpose, please go ahead. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 9. Gsview copyright (ImageMagick incorporated a small portion of code from the gsview package to locate Ghostscript under Windows. This source code is distributed under the following license): Copyright (C) 2000-2002, Ghostgum Software Pty Ltd. All rights reserved. Permission is hereby granted, free of charge, to any person obtaining a copy of this file ("Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of this Software, and to permit persons to whom this file is furnished to do so, subject to the following conditions: This Software is distributed with NO WARRANTY OF ANY KIND. No author or distributor accepts any responsibility for the consequences of using it, or for whether it serves any particular purpose or works at all, unless he or she says so in writing. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 10. Libsquish copyright (this copyright is limited to the compression used in coder/dds.c, incorporated from the libsquish library): Copyright (c) 2006 Simon Brown si@sjbrown.co.uk Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 11. Bootstrap copyright (ImageMagick utilizes CSS for its web pages under this copyright): Bootstrap v3.3.5 (http://getbootstrap.com) Copyright 2011-2015 Twitter, Inc. Licensed under the MIT license * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *	11.72 KB	2026-02-22 21:26
📄 README.md # ImageMagick [![Build Status](https://github.com/ImageMagick/ImageMagick/workflows/main/badge.svg)](https://github.com/ImageMagick/ImageMagick/actions) [![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/imagemagick.svg)](https://issues.oss-fuzz.com/issues?q=%22project%20ImageMagick%22) [![Donate](https://img.shields.io/badge/%24-donate-ff00ff.svg)](https://github.com/sponsors/ImageMagick) <p align="center"> <img align="center" src="https://imagemagick.org/image/wizard.png" alt="ImageMagick logo" width="265" height="353"/> </p> [ImageMagick®](https://imagemagick.org/) is a free and [open-source](https://imagemagick.org/license/) software suite, used for editing and manipulating digital images. It can be used to create, edit, compose, or convert bitmap images, and supports a wide range of file [formats](https://imagemagick.org/script/formats.php), including JPEG, PNG, GIF, TIFF, and PDF. ## What is ImageMagick? ImageMagick is widely used in industries such as web development, graphic design, and video editing, as well as in scientific research, medical imaging, and astronomy. Its versatile and customizable nature, along with its robust image processing capabilities, make it a popular choice for a wide range of image-related tasks. ImageMagick includes a command-line interface for executing complex image processing tasks, as well as APIs for integrating its features into software applications. It is written in C and can be used on a variety of operating systems, including Linux, Windows, and macOS. The main website for ImageMagick can be found at [https://imagemagick.org](https://imagemagick.org/). The source code for this software can be accessed through a [repository](https://github.com/ImageMagick/ImageMagick). In addition, we maintain a legacy version of ImageMagick [version 6](https://legacy.imagemagick.org/). Creating a security policy that fits your specific local environment before making use of ImageMagick is highly advised. You can find guidance on setting up this [policy](https://imagemagick.org/script/security-policy.php). Also, it's important to verify your policy using the [validation tool](https://imagemagick.org/script/security-policy.php). ## Features and Capabilities One of the key features of ImageMagick is its support for scripting and automation. This allows users to create complex image manipulation pipelines that can be run automatically, without the need for manual intervention. This can be especially useful for tasks that require the processing of large numbers of images, or for tasks that need to be performed on a regular basis. In addition to its core image manipulation capabilities, ImageMagick also includes a number of other features, such as support for animation, color management, and image rendering. These features make it a versatile tool for a wide range of image-related tasks, including graphic design, scientific visualization, and digital art. Overall, ImageMagick is a powerful and versatile software suite for displaying, converting, and editing image files. Its support for scripting and automation, along with its other features, make it a valuable tool for a wide range of image-related tasks. Here are just a few [examples](https://imagemagick.org/script/examples.php) of what ImageMagick can do: * [Animation](https://imagemagick.org/script/command-line-options.php#bilateral-blur): non-linear, edge-preserving, and noise-reducing smoothing filter. * [Bilateral Blur](https://imagemagick.org/script/command-line-options.php#bilateral-blur): non-linear, edge-preserving, and noise-reducing smoothing filter. * [Color management](https://imagemagick.org/script/color-management.php): accurate color management with color profiles or in lieu of-- built-in gamma compression or expansion as demanded by the colorspace. * [Color thresholding](https://imagemagick.org/script/color-management.php) force all pixels in the color range to white otherwise black. * [Command-line processing](https://imagemagick.org/script/command-line-processing.php) utilize ImageMagick from the command-line. * [Complex text layout](https://en.wikipedia.org/wiki/Complex_text_layout) bidirectional text support and shaping. * [Composite](https://imagemagick.org/script/composite.php): overlap one image over another. * [Connected component labeling](https://imagemagick.org/script/connected-components.php): uniquely label connected regions in an image. * [Convex hull](https://imagemagick.org/script/convex-hull.php) smallest area convex polygon containing the image foreground objects. In addition, the minimum bounding box and unrotate angle are also generated. * [Decorate](https://imagemagick.org/Usage/crop/): add a border or frame to an image. * [Delineate image features](https://imagemagick.org/Usage/transform/#vision): Canny edge detection, mean-shift, Hough lines. * [Discrete Fourier transform](https://imagemagick.org/Usage/fourier/): implements the forward and inverse [DFT](http://en.wikipedia.org/wiki/Discrete_Fourier_transform). * [Distributed pixel cache](https://imagemagick.org/script/distribute-pixel-cache.php): offload intermediate pixel storage to one or more remote servers. * [Draw](https://imagemagick.org/Usage/draw/): add shapes or text to an image. * [Encipher or decipher an image](https://imagemagick.org/script/cipher.php): convert ordinary images into unintelligible gibberish and back again. * [Format conversion](https://imagemagick.org/script/convert.php): convert an image from one [format](https://imagemagick.org/script/formats.php) to another (e.g. PNG to JPEG). * [Generalized pixel distortion](https://imagemagick.org/Usage/distorts/): correct for, or induce image distortions including perspective. * [Heterogeneous distributed processing](https://imagemagick.org/script/architecture.php#distributed): certain algorithms are OpenCL-enabled to take advantage of speed-ups offered by executing in concert across heterogeneous platforms consisting of CPUs, GPUs, and other processors. * [High dynamic-range images](https://imagemagick.org/script/high-dynamic-range.php): accurately represent the wide range of intensity levels found in real scenes ranging from the brightest direct sunlight to the deepest darkest shadows. * [Histogram equalization](https://imagemagick.org/script/clahe.php) use adaptive histogram equalization to improve contrast in images. * [Image cache](https://imagemagick.org/script/magick-cache.php): secure methods and tools to cache images, image sequences, video, audio or metadata in a local folder. * [Image calculator](https://imagemagick.org/script/fx.php): apply a mathematical expression to an image or image channels. * [Image gradients](https://imagemagick.org/script/gradient.php): create a gradual blend of one color whose shape is horizontal, vertical, circular, or elliptical. * [Image identification](https://imagemagick.org/script/identify.php): describe the format and attributes of an image. * [ImageMagick on the iPhone](https://imagemagick.org/script/download.php#iOS): convert, edit, or compose images on your iPhone. * [Large image support](https://imagemagick.org/script/architecture.php#tera-pixel): read, process, or write mega-, giga-, or tera-pixel image sizes. * [Montage](https://imagemagick.org/script/montage.php): juxtapose image thumbnails on an image canvas. * [Morphology of shapes](https://imagemagick.org/Usage/morphology/): extract features, describe shapes and recognize patterns in images. * [Motion picture support](https://imagemagick.org/script/motion-picture.php): read and write the common image formats used in digital film work. * [Multispectral imagery](https://imagemagick.org/script/multispectral-imagery.php): support multispectral imagery up to 64 bands. * [Noise and color reduction](https://imagemagick.org/Usage/transform/#vision) Kuwahara Filter, mean-shift. * [Perceptual hash](http://www.fmwconcepts.com/misc_tests/perceptual_hash_test_results_510/index.html): maps visually identical images to the same or similar hash-- useful in image retrieval, authentication, indexing, or copy detection as well as digital watermarking. * [Special effects](https://imagemagick.org/Usage/blur/): blur, sharpen, threshold, or tint an image. * [Text & comments](https://imagemagick.org/Usage/text/): insert descriptive or artistic text in an image. * [Threads of execution support](https://imagemagick.org/script/architecture.php#threads): ImageMagick is thread safe and most internal algorithms are OpenMP-enabled to take advantage of speed-ups offered by multicore processor chips. * [Transform](https://imagemagick.org/Usage/resize/): resize, rotate, deskew, crop, flip or trim an image. * [Transparency](https://imagemagick.org/Usage/masking/): render portions of an image invisible. * [Virtual pixel support](https://imagemagick.org/script/architecture.php#virtual-pixels): convenient access to pixels outside the image region. [Examples of ImageMagick Usage](https://imagemagick.org/Usage/), demonstrates how to use the software from the [command line](https://imagemagick.org/script/command-line-processing.php) to achieve various effects. There are also several scripts available on the website called [Fred's ImageMagick Scripts](http://www.fmwconcepts.com/imagemagick/), which can be used to apply geometric transforms, blur and sharpen images, remove noise, and perform other operations. Additionally, there is a tool called [Magick.NET](https://github.com/dlemstra/Magick.NET) that allows users to access the functionality of ImageMagick without having to install the software on their own systems. Finally, the website also includes a [Cookbook](http://im.snibgo.com/) with tips and examples for using ImageMagick on Windows systems. ## News Creating a security policy that fits your specific local environment before making use of ImageMagick is highly advised. You can find guidance on setting up this [policy](https://imagemagick.org/script/security-policy.php). Also, it's important to verify your policy using the [validation tool](https://imagemagick-secevaluator.doyensec.com/). As of ImageMagick version 7.1.1-16, you can choose and customize one of these [security policies](https://imagemagick.org/script/security-policy.php): Open, Limited, Secure, and Websafe. By default, ImageMagick supports up to 32 channels. As of ImageMagick version 7.1.1-16, you can enable up to 64 channels by adding the --enable-64bit-channel-masks option to the Linux configure build script. For Windows this will be enabled automatically. Want more performance from ImageMagick? Try these options: * add more memory to your system, see the [pixel cache](https://imagemagick.org/script/architecture.php#cache); * add more cores to your system, see [threads of execution support](https://imagemagick.org/script/architecture.php#threads); * reduce lock contention with the [tcmalloc](http://goog-perftools.sourceforge.net/doc/tcmalloc.html) memory allocation library; * push large images to a solid-state drive, see [large image support](https://imagemagick.org/script/architecture.php#tera-pixel). If these options are prohibitive, you can reduce the quality of the image results. The default build is Q16 HDRI. If you disable [HDRI](https://imagemagick.org/script/high-dynamic-range.php), you use half the memory and instead of predominantly 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 configure script options: --with-quantum-depth=8 --disable-hdri.	11.6 KB	2026-02-22 21:26

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