mloss.org FWTNhttp://mloss.orgUpdates and additions to FWTNenThu, 25 Mar 2010 16:58:24 -0000FWTN 1.0http://mloss.org/software/view/242/<html><p>The package includes a simple and standalone implementation of orthonormal wavelet transformations for D dimensional tensors in L levels. It is generic in the quadrature mirror filter, so any filter (Haar, Daubechies etc.) can be used. Runtime is O(n) with n being the number of elements of the tensor. The code is written in plain C (with inspirations from Wavelab); a Matlab/Octave mex wrapper as well as a demo example is provided.
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<p>In Matlab, you simply type the following to perform the transformation.
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<p>qmf = [1,1]/sqrt(2); % Haar Wavelet
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<p>L = 3; % # Levels in the pyramid
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<p>W = fwtn(X,L,qmf); % apply FWT, inverse: X = fwtn(W,L,qmf,1);
</p></html>Hannes NickischThu, 25 Mar 2010 16:58:24 -0000http://mloss.org/software/rss/comments/242http://mloss.org/software/view/242/wavelet