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WT2DVisu(2) Scilab Function WT2DVisu(2)
NAME
WT2DVisu - Visualise a 2D Multiresolution
Author: Bertrand Guiheneuf
This routine constructs a matrix that shows all the wavelet coefficients of
a 2D matrix.
Usage
[V]=WT2DVisu(wt)
Input parameter
o wt : real unidimensional matrix [m,n] Contains the wavelet transform
(obtained with FWT2D).
Output parameter
o V : real matrix [m,n] Contains a matrix to be visualized directly
Description
Introduction
This routine is used to display all the scales and all the frequency com-
ponents of a wavelet transform.
Parameters
wt must be a real matrix. It's generally obtained with FWT2D. V the
wavelet coefficents.
Example
a=rand(256,256); q=MakeQMF('daubechies',4); wt = FWT2D(a,8,q);
V=WT2DVisu(wt); viewmat(V);
See Also
FWT2D, IWT2D, WT2Dext,
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