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formfiltersdwt.m DWT filter generator adaptor

David Valencia ● December 5, 2010 ● Coded in Matlab

Used for the chain-processing DWT program.

For details please go to the blog post:

http://www.dsprelated.com/showarticle/126.php

 

This program requires:

http://www.dsprelated.com/showcode/44.php

% By David Valencia
% As posted in DSPRelated.com
% at http://www.dsprelated.com/showcode/45.php
% Used for the DWT chain processing program

function [hx] = formfiltersdwt(n_stages,branch,h0,h1)
if(branch==1)
    hx=formfilters(n_stages,branch,h0,h1);
elseif(branch==2)
    hx=formfilters(n_stages,2,h0,h1);
else
    hx=formfilters(n_stages-branch+2,2,h0,h1);
end

% The code line that is changed in formfilters.m for DWT is:
%p = mod(2^(n_stages-1-i),p);