wavDTWTFilters( bio = ``nearsyma", qshift = ``a" )
(1) N. G. Kingsbury, ``The dual-tree complex wavelet transform: a new efficient tool for image restoration and enhancement'', Proc. EUSIPCO 98, Rhodes, Sept. 1998.
(2) N. G. Kingsbury, ``Image processing with complex wavelets'', Phil. Trans. Royal Society London A, Sept. 1999, pp. 2543-2560.
(3) N. G. Kingsbury, ``A dual-tree complex wavelet transform with improved orthogonality and symmetry properties'', Proc. IEEE Conf. on Image Processing, Vancouver, Sept. 11-13, 2000, Paper 1429.
(4) I. Daubechies, ``Orthonormal Bases of Compactly Supported Wavelets'', Communications on Pure and, Applied Mathematics, 41, 909-96.
## calculate DTWT filters
temp <- wavDTWTFilters(bior = "nearsyma", qshift = "b")
## plot impulse responses of filters used in the
## forward DTWT
plot(temp)
## plot impulse responses of filters used in the
## inverse DTWT
plot(temp, forward = F)
## plot the squared gain response of the forward filters
plot(temp, freq = T)
## summarize the filter set
summary(temp)