BrainVisa Morphologist is collaborative BrainVisa extension library that provides computational tools for performing Object Based Morphology measurements to assess groupwise differences and track morphological changes to study aging, development, neurological and neurodegenerative disorders and genetic factors that affect them. This library includes source codes and methods for computation of regional GM thickness (multi-threaded and single thread), 3D gyrification index, sulcal lenght and depth and sulcal span and gyral white matter span.
These tools are distributed as plugins for a popular analysis package BrainVisa
The Artistic License or a derivative; see: http://www.opensource.org/licenses/artistic-license.php
The Artistic License is intended to allow a package to be released as open source while still giving the originator some control over the future of the package. The Artistic License is controversial and has been criticized as being "too vague"; packages are often released under a dual license where the Artistic License is used.