Inverse 2-d MRA wavelet transform (periodized, orthogonal)
x = IWT2_PO(wc,L,qmf)
2-d wavelet transform [n by n array, n dyadic]
coarse level
quadrature mirror filter
2-d signal reconstructed from wc
If wc is the result of a forward 2d wavelet transform, with wc = FWT2_PO(x,L,qmf), then x = IWT2_PO(wc,L,qmf) reconstructs x exactly if qmf is a nice qmf, e.g. one made by MakeONFilter.