Introduction to ImageMagick
- ImageMagick®, http://www.imagemagick.org, is a software suite to create,
- edit, and compose bitmap images. It can read, convert and write images in
- a variety of formats (over 100) including DPX, EXR, GIF, JPEG, JPEG-2000,
- PDF, PhotoCD, PNG, Postscript, SVG, and TIFF. Use ImageMagick to translate,
- flip, mirror, rotate, scale, shear and transform images, adjust image
- colors, apply various special effects, or draw text, lines, polygons,
- ellipses and Bézier curves.
+ 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,
+ 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
images dynamically and automagically.
+
+ ImageMagick utilizes multiple computational threads to increase performance
+ 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
+ https://www.imagemagick.org/script/download.php. It runs on Linux, Windows,
+ Mac Os X, iOS, Android OS, and others.
+
+ The authoritative ImageMagick web site is
+ https://www.imagemagick.org. The authoritative source code repository is
+ http://git.imagemagick.org/repos/ImageMagick/.
+
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.
* Generalized pixel distortion: correct for, or induce image distortions
including perspective.
+ * Computer vision: Canny edge detection.
* Morphology of shapes: extract features, describe shapes and recognize
patterns in images.
* Motion picture support: read and write the common image formats used in
digital film work.
* Image calculator: apply a mathematical expression to an image or image
channels.
+ * Connected component labeling: uniquely label connected regions in an
+ image.
* Discrete Fourier transform: implements the forward and inverse DFT.
+ * 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.
* High dynamic-range images: accurately represent the wide range of
intensity levels found in real scenes ranging from the brightest direct
sunlight to the deepest darkest shadows.
* Threads of execution support: ImageMagick is thread safe and most
internal algorithms are OpenMP-enabled to take advantage of speed-ups
offered by multicore processor chips.
+ * Distributed pixel cache: offload intermediate pixel storage to one or
+ more remote servers.
* Heterogeneous distributed processing: 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.
* 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,
- http://www.fmwconcepts.com/imagemagick/: a plethora of command-line scripts
- that perform geometric transforms, blurs, sharpens, edging, noise removal,
- and color manipulations.
+ Examples of ImageMagick 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: a plethora of command-line scripts that
+ perform geometric transforms, blurs, sharpens, edging, noise removal,
+ and color manipulations. With Magick.NET, use ImageMagick without having
+ to install ImageMagick on your server or desktop.
+
projects / imagemagick / blobdiff