SimpleITK: a simplified layer build on top of the Insight Toolkit (ITK), intended to facilitate its use in rapid prototyping, education and interpreted languages.
C++ CMake TeX Python Shell R Other
Latest commit 522e60b Oct 13, 2016 @blowekamp blowekamp committed with kwrobot Merge topic 'SimplifyColorShow'
f0359d1 Simplified the show command
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.ExternalData Create separate source and data tar-balls for distribution. Jun 10, 2015
CMake Use UNINITIALIZED CMake variable type when undefined. Oct 12, 2016
Code Merge topic 'SimplifyColorShow' Oct 13, 2016
Documentation Replacing 0.10.0 manylinux wheels with build 1. Aug 18, 2016
Examples Adding CSharp port of ImageRegistration1 example Sep 29, 2016
SuperBuild Disable pthreads in GTest Oct 11, 2016
TemplateComponents Renaming std::auto_ptr to nsstd::auto_ptr Jul 20, 2016
Testing Merge topic 'AddGetNumberOfPixels' Sep 19, 2016
Utilities Merge topic 'FixDoxygenCommandsAndEventSnippets' Sep 2, 2016
Wrapping Separate R Array functions into separate file Sep 19, 2016
.gitattributes Modify git attributes to allow big swig dot i files Dec 17, 2012
.gitignore ENH: Add ignore for CLion editior temp files Aug 5, 2016
.hooks-config.bash ENH: Simplify local Git hook chaining Feb 13, 2012
.travis.yml Initial checkin of .travis.yml Sep 1, 2016
CMakeLists.txt Merge topic 'CMakeTweaks' Jul 6, 2016
CTestConfig.cmake Updating Dash info Jun 21, 2014
LICENSE ENH: Adding the Apache license. Nov 25, 2010
NOTICE Updating copyright years in notice. Feb 5, 2013 Adding CircleCi badge for master branch. Aug 20, 2016 Adding comment documentation to Config version change Aug 15, 2016 Require SimpleITK major version to match for compatible version Apr 8, 2014 ENH: Add install and export rules for SimpleITK libs Mar 14, 2012
Version.cmake Bumping version 0.11.0 for development Jul 27, 2016
circle.yml Adding SSH multiplexing to prevent change host ID warnings distcc Sep 16, 2016



SimpleITK is an image analysis toolkit with a large number of components supporting general filtering operations, image segmentation and registration. It is built on top of the Insight Segmentation and Registration Toolkit ITK with the intent of providing a simplified interface to ITK. SimpleITK itself is written in C++ but is available for a large number of programming languages. Currently these include:

Wrapping of the C++ code is accomplished through SWIG, in principle, any language wrapped by SWIG should be applicable to SimpleITK.

Unlike ITK's support of n-dimensional spatio-temporal images, SimpleITK supports 2D, 3D and optionally 3D+time. The dimensionality refers to spatio-temporal dimensions, the voxels can be n-dimensional vectors.

SimpleITK is licensed under the Apache License in the same way as ITK.


SimpleITK uses the Git distributed version control system. The main repository is hosted on and mirrored to Github. There are two main branches, master and next. The "master" is a stable branch of the code, and suitable for most users, while "next" contains future features that are unlikely to be stable.

The SimpleITK Wiki is the main site for all things SimpleITK. The site includes information on installing the toolkit's binary distributions, building the toolkit, user support documentation and much more. The API documentation is maintained using Doxygen.

SimpleITK provides access to most of the ITK components, but not all. If you are looking for something specific and can't find it, ask for support on the mailing list (you will need to subscribe to the mailing list before you post).