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function test_failed=test_wfbt2filterbank
%-*- texinfo -*-
%@deftypefn {Function} test_wfbt2filterbank
%@verbatim
%TEST_FILTERBANK test the equivalence of wfbt anf filterbank
% Usage: test_wfbt2filterbank()
%
%@end verbatim
%@strong{Url}: @url{http://ltfat.github.io/doc/testing/test_wfbt2filterbank.html}
%@end deftypefn
% Copyright (C) 2005-2016 Peter L. Soendergaard <peter@sonderport.dk>.
% This file is part of LTFAT version 2.2.0
%
% 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 3 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.
%
% You should have received a copy of the GNU General Public License
% along with this program. If not, see <http://www.gnu.org/licenses/>.
disp(' =============== TEST_WFBT2FILTERBANK ===========');
test_failed=0;
L = [ 135, 211];
W = [1,2,3];
W = 1;
gt = {};
gt{1} = {'db4',1,'dwt'};
gt{2} = {'db4',4,'full'};
gt{3} = {{'ana:spline4:4',3,'dwt'},{'syn:spline4:4',3,'dwt'}};
gt{4} = wfbtinit(gt{2});
gt{4} = wfbtremove(3,0,gt{4});
gt{4} = wfbtremove(3,1,gt{4});
gt{5} = {{'ana:symorth3',3,'dwt'},{'ana:symorth3',3,'dwt'}};
% This case tests different filters in nodes
wt2 = wfbtinit({'db3',1});
wt2 = wfbtput(1,1,'db10',wt2);
gt{5} = wt2;
scaling = {'scale','sqrt','noscale'};
scalingInv = scaling(end:-1:1);
crossoverval = 10000;
for hh=1:2
if hh==1
testWhat = 'wfbt';
elseif hh==2
testWhat = 'wpfbt';
end
fprintf(' =============== Testing %s ===========\n',testWhat);
for jj=1:numel(gt)
for ww=1:numel(W)
for ii=1:numel(L)
f = tester_rand(L(ii),1);
gttmp = gt(jj);
if isempty(gttmp{1})
continue;
end
if iscell(gt{jj}) && iscell(gt{jj}{1})
gttmp = gt{jj}{1};
else
gttmp = gttmp{1};
end
if strcmp(testWhat,'wfbt')
refc = wfbt(f,gttmp);
[g,a] = wfbt2filterbank(gttmp);
elseif strcmp(testWhat,'wpfbt')
refc = wpfbt(f,gttmp);
[g,a] = wpfbt2filterbank(gttmp);
end
c = filterbank(f,g,a,'crossover',1);
err = norm(cell2mat(c)-cell2mat(refc));
[test_failed,fail]=ltfatdiditfail(err,test_failed);
if ~isstruct(gt{jj})
fprintf('FILT %d, COEF, FFT L= %d, W= %d, err=%.4e %s \n',jj,L(ii),W(ww),err,fail);
else
fprintf('FILT %d, COEF, FFT L= %d, W= %d, err=%.4e %s\n',jj,L(ii),W(ww),err,fail);
end;
c = filterbank(f,g,a,'crossover',crossoverval);
err = norm(cell2mat(c)-cell2mat(refc));
[test_failed,fail]=ltfatdiditfail(err,test_failed);
if ~isstruct(gt{jj})
fprintf('FILT %d, COEF, TD L= %d, W= %d, err=%.4e %s \n',jj,L(ii),W(ww),err,fail);
else
fprintf('FILT %d, COEF, TD L= %d, W= %d, err=%.4e %s\n',jj,L(ii),W(ww),err,fail);
end;
if iscell(gt{jj}) && iscell(gt{jj}{2})
gttmp = gt{jj}{2};
end
if strcmp(testWhat,'wfbt')
[g,a] = wfbt2filterbank(gttmp);
elseif strcmp(testWhat,'wpfbt')
[g,a] = wpfbt2filterbank(gttmp);
end
fhat = ifilterbank(refc,g,a,L(ii),'crossover',1);
err = norm(fhat-f);
[test_failed,fail]=ltfatdiditfail(err,test_failed);
if ~isstruct(gt{jj})
fprintf('FILT %d, INV, FFT L= %d, W= %d, err=%.4e %s \n',jj,L(ii),W(ww),err,fail);
else
fprintf('FILT %d, INV, FFT L= %d, W= %d, err=%.4e %s\n',jj,L(ii),W(ww),err,fail);
end;
fhat = ifilterbank(refc,g,a,L(ii),'crossover',crossoverval);
err = norm(fhat-f);
[test_failed,fail]=ltfatdiditfail(err,test_failed);
if ~isstruct(gt{jj})
fprintf('FILT %d, INV, TD L= %d, W= %d, err=%.4e %s \n',jj,L(ii),W(ww),err,fail);
else
fprintf('FILT %d, INV, TD L= %d, W= %d, err=%.4e %s\n',jj,L(ii),W(ww),err,fail);
end;
for scIdx = 1:numel(scaling)
gttmp = gt(jj);
if iscell(gt{jj}) && iscell(gt{jj}{1})
gttmp = gt{jj}{1};
else
gttmp = gttmp{1};
end
if strcmp(testWhat,'wfbt')
urefc = uwfbt(f,gttmp,scaling{scIdx});
[g,a] = wfbt2filterbank(gttmp,scaling{scIdx});
elseif strcmp(testWhat,'wpfbt')
urefc = uwpfbt(f,gttmp,scaling{scIdx});
[g,a] = wpfbt2filterbank(gttmp,scaling{scIdx});
end
uc = ufilterbank(f,g,a,'crossover',crossoverval);
err = norm(uc-urefc);
[test_failed,fail]=ltfatdiditfail(err,test_failed);
if ~isstruct(gt{jj})
fprintf('FILT %d, %s, COEF, FFT, UNDEC, L= %d, W= %d, err=%.4e %s \n',jj,scaling{scIdx},L(ii),W(ww),err,fail);
else
fprintf('FILT %d, %s, COEF, FFT, UNDEC, L= %d, W= %d, err=%.4e %s\n',jj,scaling{scIdx},L(ii),W(ww),err,fail);
end;
if iscell(gt{jj}) && iscell(gt{jj}{2})
gttmp = gt{jj}{2};
end
if strcmp(testWhat,'wfbt')
[g,a] = wfbt2filterbank(gttmp);
elseif strcmp(testWhat,'wpfbt')
[g,a] = wpfbt2filterbank(gttmp);
end
g = comp_filterbankscale(g,a,scalingInv{scIdx});
fhat = ifilterbank(urefc,g,ones(numel(g),1),L(ii),'crossover',crossoverval);
err = norm(fhat-f);
[test_failed,fail]=ltfatdiditfail(err,test_failed);
if ~isstruct(gt{jj})
fprintf('FILT %d, %s, INV, FFT, UNDEC, L= %d, W= %d, err=%.4e %s \n',jj,scaling{scIdx},L(ii),W(ww),err,fail);
else
fprintf('FILT %d, %s INV, FFT, UNDEC, L= %d, W= %d, err=%.4e %s\n',jj,scaling{scIdx},L(ii),W(ww),err,fail);
end;
end
end
end
end
end
end
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