PyShearlets/README.orig at master · fwrnke/PyShearlets · GitHub

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FFST - Fast Finite Shearlet Transform

Overview
--------
The FFST package provides a fast implementation of the Finite Shearlet Transform.
Following the the path via the continuous shearlet transform,
its counterpart on cones and finally its discretization on the full grid we obtain the
translation invariant discrete shearlet transform. Our discrete shearlet transform
can be efficiently computed by the fast Fourier transform (FFT).
The discrete shearlets constitute a Parseval frame of the finite Euclidean space such that

More information can be found in the following Papers
   - S. Häuser and G. Steidl, "Convex Multilabel Segmentation with Shearlet Regularization",
        International Journal of Computer Mathematics. 90, (1), 62-81, 2013
   - S. Häuser and G. Steidl, "FFST: a tutorial", arXiv Preprint 1202.1773, 2014

The Matlab-Version of the toolbox is available for free download at

               http://www.mathematik.uni-kl.de/imagepro/software/

The zip-file contains all relevant files and folders. Simply unzip the archive
and add the folder (with subfolders!) to your Matlab-path or run installFFST.m.

The folder FFST contains the main files for the both directions of the transform.
The included shearlets are stored in the folder shearlets. The folder helper
contains some helper functions. To create  simple geometric structures some
functions are provided in create. See contents.m and the comments in each
file for more information.

Installation
------------
Run installFFST.m to add all folders to your MATLAB path.
To check if everything is installed correctly run simple_example.m for testing.

Feedback
--------
If you have any questions, comments or suggestions feel free to contact

   Sören Häuser <haeuser@mathematik.uni-kl.de>
   TU Kaiserslautern, Dept. of Mathematics
   Paul-Ehrlich-Str. 31
   67663 Kaiserslautern, GERMANY

Please keep track of any bugs you might encounter and send them to the author.

If you find FFST useful, we would be delighted to hear about what application
you are using FFST for!

Legal Information & Credits
---------------------------
Copyright (c) 2014 Sören Häuser

This software was written by Sören Häuser.
It was developed at the Department of Mathematics, TU Kaiserslautern

FFST is free software. You can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3 of the License, or (at your option) any later
version. If not stated otherwise, this applies to all files contained in this
package and its sub-directories.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA