Multi-platform, free open source software for visualization and image computing.
Insight Toolkit (ITK) -- Official Repository. ITK builds on a proven, spatially-oriented architecture for processing, segmentation, and registration of scientific images in two, three, or more dimensions.
The Medical Imaging Interaction Toolkit.
A Task Manager for android
SimpleITK: a layer built on top of the Insight Toolkit (ITK), intended to simplify and facilitate ITK's use in rapid prototyping, education and interpreted languages.
A set of common support code for medical imaging, surgical navigation, and related purposes.