Python port of FFST copyright 2015-2016, Gregory R. Lee.
The original Matlab implementation is copyright 2014 Sören Häuser and is covered by a GPL v3 license (see README.orig and COPYING for the license terms).
The original Matlab implementation (v0.2) can be obtained here: http://www.mathematik.uni-kl.de/imagepro/software/ffst/
The implementation is described in the following publications.
S. Häuser, G. Steidl (2014). Fast Finite Shearlet Transform: a tutorial. ArXiv. (1202.1773),
S. Häuser and G. Steidl (2013). Convex Multiclass Segmentation with Shearlet Regularization. International Journal of Computer Mathematics. 90, (1), 62-81.
Alternative implementations of shearlets for Matlab are available here: ShearLab: www.shearlab.org