ITK/Release 4/Why Switch to ITKv4

Modularization

• Easier to find what you are looking for.
• Easier to understand how to use the toolkit.
• Build only the parts of the toolkit that you need.
• Extend bridging of the toolkit to other toolkit and libraries.
• Makes it easy to associate and build auxiliary community projects with the External module.
• Find the quality control per module by performing code coverage tests per module.

New Registration Framework

• Automatic optimization parameter scale estimation
• Composite transform
• Displacement field transform
• Better integration of dense displacement field registration into the framework
• Better support for multi-threading
• Additional evolutionary optimizers
• Different B-Spline registration approach available
• Transform symmetric second rank tensors

SimpleITK

• Ease of Use
  • Illustrations of ITK, WrappedITK, and SimpleITK
• Rapid development
• Interactive processing

WrapITK

• Tight incorporation of the outstanding formerly third party WrapITK project.
• Numpy integration.