adfig07.m

老外写的小波变换的工具箱

% adfig07 -- Adapt Figure 07: MultiResolution Analysis of Blocks and HeaviSine
%                Using Haar & Db4
%
% Mallat's MRA groups together all the terms in the wavelet 
% decomposition which occupy the same scale (with perhaps
% different locations).
%
% Here we display the MRA of the four functions from Figure 1,
% using the Daubechies Nearly Symmetric S8 Wavelet. Each curve
% represents the contributions arising from a single scale.
%

global L
global Blocks Bumps HeaviSine Doppler
%
HaarQMF = MakeONFilter('Haar');
%
   %clf; 
   subplot(221);
   xw = FWT_PO(Blocks,L,HaarQMF);
   IMJPlotMultiRes(xw,L,.2,HaarQMF);
   title(' 7 (a) Haar[Blocks] ')
%
   subplot(222);
   xw = FWT_PO(HeaviSine,L,HaarQMF);
   IMJPlotMultiRes(xw,L,.2,HaarQMF);
   title(' 7 (b) Haar[HeaviSine] ')
%
Db4QMF  = MakeONFilter('Daubechies',4);
%
   subplot(223)
   xw = FWT_PO(Blocks,L,Db4QMF);
   IMJPlotMultiRes(xw,L,.2,Db4QMF);
   title(' 7 (c) Db4[Blocks] ')
%
   subplot(224)
   xw = FWT_PO(HeaviSine,L,Db4QMF);
   IMJPlotMultiRes(xw,L,.2,Db4QMF);
   title(' 7 (d) Db4[HeaviSine] ')

    
    
 
 
%
%  Part of Wavelab Version 850
%  Built Tue Jan  3 13:20:41 EST 2006
%  This is Copyrighted Material
%  For Copying permissions see COPYING.m
%  Comments? e-mail [e-mail]