Inverse Nonstandard Wavelet Transform (Periodized, Orthogonal)
x = INWT_PO(nwc,L,qmf)
nonstandard wavelet transform. Produced by FNWT_PO.
coarsest resolution level
quadrature mirror filter
1-d signal. length(x) = 2^J.
if x is a vector and M is a matrix, then one can calculate Mx in two ways: (a) Use standard basis: M*x (b) Use wavelet Basis: INWT[NSF * FNWT[x]] where NWT and INWT are nonstandard wavelet transforms and NSF is the nonstandard form of the matrix.