IWT_PO {rwavelet}

Inverse Wavelet Transform (periodized, orthogonal)

Description

Suppose wc <- FWT_PO(x,L,qmf) where qmf is an orthonormal quad. mirror filter, e.g. one made by MakeONFilter. Then x can be reconstructed by x <- IWT_PO(wc,L,qmf).

Usage

IWT_PO(wc, L, qmf)

Arguments

wc

1-d wavelet transform: length(wc) = 2^J.

L

Coarsest scale (2^(-L) = scale of V_0); L << J.

qmf

quadrature mirror filter (orthonormal).

Value

x 1-d signal reconstructed from wc.

See Also

FWT_PO, MakeONFilter.

Examples

x <- MakeSignal('Ramp', 8)
L <- 0
qmf <- MakeONFilter('Haar')
wc <- FWT_PO(x, L, qmf)
xr <- IWT_PO(wc,L,qmf)