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Steerable scale discretised wavelets on the sphere http://astro-informatics.github.io/s2dw
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S2DW CODE Steerable scale discretised wavelets on the sphere ---------------------------------------------------------------- DESCRIPTION The S2DW code provides functionality to perform the scale discretised wavelet transform on the sphere developed in our paper: Exact reconstruction with directional wavelets on the sphere. Routines are provided to compute wavelet and scaling coefficients from the spherical harmonic coefficients of a signal on the sphere and to synthesise the spherical harmonic coefficients of the original signal from its wavelet and scaling coefficients. The reconstruction of the spherical harmonic coefficients of the original signal is exact to numerical precision. Typically, maximum reconstruction errors are of the order 10^(-12) or smaller. Please see our paper for further details of the wavelet transform and a discussion of typical reconstruction errors and execution times of this implementation. VERSION Release 1.1 AUTHORS J. D. McEwen (http://www.jasonmcewen.org) and Y. Wiaux REFERENCE Y. Wiaux, J. D. McEwen, P. Vandergheynst, and O. Blanc Exact reconstruction with directional wavelets on the sphere. Mon. Not. Roy. Astron. Soc., 388(2):770-788, 2008 (arXiv:0712.3519) DOCUMENTATION See doc/index.html REQUIREMENTS Library: FFTW (http://www.fftw.org/) CFITSIO (http://heasarc.gsfc.nasa.gov/docs/software/fitsio/) Utility programs: S2 (http://www.jasonmcewen.org/codes.html) HEALPix (http://healpix.jpl.nasa.gov/) INSTALLATION See doc/index.html DOWNLOAD http://www.jasonmcewen.org/codes.html SUPPORT See http://cosmocoffee.info/ forums NOTE The package is still under development Please report problems/bugs by email to Jason McEwen LICENSE S2DW package to compute the scale discretised wavelet transform on the sphere Copyright (C) 2008 Jason McEwen and Yves Wiaux This program 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 2 of the License, or (at your option) any later version. 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 (LICENSE.txt). 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.