ImageMagick® is a software suite to create, edit, compose, or convert
bitmap images. It can read and write images in a variety of formats (over
- 200) including PNG, JPEG, JPEG-2000, GIF, TIFF, DPX, EXR, WebP, Postscript,
- PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort,
+ 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, 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.
The functionality of ImageMagick is typically utilized from the command
line or you can use the features from programs written in your favorite
- programming language. Choose from these interfaces: G2F (Ada), MagickCore
- (C), MagickWand (C), ChMagick (Ch), ImageMagickObject (COM+), Magick++
- (C++), JMagick (Java), L-Magick (Lisp), NMagick (Neko/haXe), MagickNet
+ language. Choose from these interfaces: G2F (Ada), MagickCore (C),
+ MagickWand (C), ChMagick (Ch), ImageMagickObject (COM+), Magick++ (C++),
+ JMagick (Java), L-Magick (Lisp), Lua, NMagick (Neko/haXe), Magick.NET
(.NET), PascalMagick (Pascal), PerlMagick (Perl), MagickWand for PHP
(PHP), IMagick (PHP), PythonMagick (Python), RMagick (Ruby), or TclMagick
(Tcl/TK). With a language interface, use ImageMagick to modify or create
and can read, process, or write mega-, giga-, or tera-pixel image sizes.
ImageMagick is free software delivered as a ready-to-run binary distribution
- or as source code that you may freely use, copy, modify, and distribute
- in both open and proprietary applications. It is distributed under the
- Apache 2.0 license, approved by the OSI and recommended for use by the OSSCC.
+ 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 license.
The ImageMagick development process ensures a stable API and ABI. Before
each ImageMagick release, we perform a comprehensive security assessment
- that includes memory and thread error detection to prevent security
- vulnerabilities.
+ that includes memory error and thread data race detection to prevent
+ security vulnerabilities.
- ImageMagick is available from http://www.imagemagick.org/download to
- download. It runs on Linux, Windows, Mac Os X, iOS, Android OS, and others.
+ The current release is the ImageMagick 7.0.8-* series. It runs on Linux,
+ Windows, Mac Os X, iOS, Android OS, and others.
- The authoritative ImageMagick web site is http://www.imagemagick.org.
+ The authoritative ImageMagick web site is https://www.imagemagick.org. The
+ authoritative source code repository is https://github.com/ImageMagick. We
+ maintain a source code mirror at https://gitlab.com/ImageMagick.
+
+ We continue to maintain the legacy release of ImageMagick, version 6,
+ at https://legacy.imagemagick.org.
Features and Capabilities
* Format conversion: convert an image from one format to another (e.g.
PNG to JPEG).
- * Transform: resize, rotate, crop, flip or trim an image.
+ * Transform: resize, rotate, deskew, crop, flip or trim an image.
* Transparency: render portions of an image invisible.
* Draw: add shapes or text to an image.
* Decorate: add a border or frame to an image.
* Special effects: blur, sharpen, threshold, or tint an image.
* Animation: create a GIF animation sequence from a group of images.
* Text & comments: insert descriptive or artistic text in an image.
+ * Image gradients: create a gradual blend of one color whose shape is
+ horizontal, vertical, circular, or ellipical.
* Image identification: describe the format and attributes of an image.
* Composite: overlap one image over another.
* Montage: juxtapose image thumbnails on an image canvas.
* Perceptual hash: maps visually identical images to the same or similar
hash-- useful in image retrieval, authentication, indexing, or copy
detection as well as digital watermarking.
+ * Complex text layout: bidirectional text support and shaping.
* Color management: accurate color management with color profiles or in
lieu of-- built-in gamma compression or expansion as demanded by the
colorspace.
concert across heterogeneous platforms consisting of CPUs, GPUs, and
other processors.
* ImageMagick on the iPhone: convert, edit, or compose images on your
- iPhone.
+ iPhone or iPad.
- Examples of ImageMagick Usage, http://www.imagemagick.org/Usage/, shows how
- to use ImageMagick from the command-line to accomplish any of these tasks and
- much more. Also, see Fred's ImageMagick Scripts,
+ Examples of ImageMagick Usage * https://www.imagemagick.org/Usage/
+ shows how to use ImageMagick from the command-line to accomplish any
+ of these tasks and much more. Also, see Fred's ImageMagick Scripts @
http://www.fmwconcepts.com/imagemagick/: a plethora of command-line scripts
that perform geometric transforms, blurs, sharpens, edging, noise removal,
- and color manipulations.
+ and color manipulations. With Magick.NET, use ImageMagick without having
+ to install ImageMagick on your server or desktop.
+
+
+News
+
+ Now that ImageMagick version 7 is released, we continue
+ to maintain the legacy release of ImageMagick, version 6, at
+ https://legacy.imagemagick.org. Learn how ImageMagick version 7 differs
+ from previous versions with our porting guide.
+
+ ImageMagick best practices strongly encourages you to configure a security
+ policy that suits your local environment.
+
+ 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).
+
+ Want more performance from ImageMagick? Try these options:
+
+ Add more memory to your system, see the pixel cache; Add more cores to
+ your system, see threads of execution support; push large images to a
+ solid-state drive, see large image support.
+ If these options are prohibitive, you can reduce the quality of the image
+ results. The default build is Q16 HDRI. If you disable HDRI, 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 configure script options:
+ --with-quantum-depth=8 --disable-hdri.
projects / imagemagick / blobdiff