Name
dualtree — 1D dualtree complex wavelet transform
Calling Sequence
[c,l]=dualtree(x,J,Faf,af)
Parameters
- x
-
: input vector
- J
-
: decomposition level
- Faf
-
: first stage analysis filter
- af
-
: further stage analysis filter
- c
-
: complex decomposition coefficient, real part for one tree and imainery part for another tree
- l
-
: coefficient length array
Description
dualtree is an utility function for 1D dualtree complex wavelet transform. Refer to Professor Ivan Selesnick's webpage at Brooklyn Polytech, NY.
Examples
[Faf,Fsf]=FSfarras('f');
[af,sf]=dualfilt1('f');
x=rand(1,256);
[c,l]=dualtree(x,3,Faf,af);
Authors
Roger Liu and Isaac Zhi