dualfilt1 {waveslim} | R Documentation |
Kingsbury's Q-filters for the dual-tree complex DWT.
dualfilt1()
None.
These cofficients are rounded to 8 decimal places.
af |
List (i=1,2) - analysis filters for tree i |
sf |
List (i=1,2) - synthesis filters for tree i |
Note: af[[2]]
is the reverse of af[[1]]
.
Matlab: S. Cai, K. Li and I. Selesnick; R port: B. Whitcher
Kingsbury, N.G. (2000). A dual-tree complex wavelet transform with improved orthogonality and symmetry properties, Proceedings of the IEEE Int. Conf. on Image Proc. (ICIP).
WAVELET SOFTWARE AT POLYTECHNIC UNIVERSITY, BROOKLYN, NY
http://taco.poly.edu/WaveletSoftware/