Second Stage Filters
[af,sf]=dualfilt1('f') af=dualfilt1('a') sf=dualfilt1('s')
flag, 'f' for full, 'a' for analysis and 's' for synthesis
analysis filter, 4x10 matrix, real branch low and high pass filters and imagery branch low and high pass filters
synthesis filter
dualfilt1 is an utility function for obtaining second and further stage filters for dualtree complex wavelet transform. Refer to Professor Ivan Selesnick's webpage at Brooklyn Polytech, NY.