2-dimensional wavelet transform (periodized, biorthonormal)
wc = FWT2_PBS(x,L,qmf,dqmf)
2-d image (n by n array, n dyadic)
coarse level
quadrature mirror filter
dual quadrature mirror filter
2-d wavelet transform
A two-dimensional Wavelet Transform is computed for the array x. To reconstruct, use IWT2_PBS.