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IWT2_PB

Inverse 2d Wavelet Transform (periodized, biorthogonal)

Calling Sequence

x = IWT2_PB(wc,L,qmf,dqmf)

Parameters

Inputs:

wc :

2-d wavelet transform [n by n array, n dyadic]

L :

coarse level

qmf :

quadrature mirror filter

qmf :

dual quadrature mirror filter

Outputs:

x :

2-d signal reconstructed from wc

Description

If wc is the result of a forward 2d wavelet transform, with wc = FWT2_PB(x,L,qmf,dqmf) then x = IWT2_PB(wc,L,qmf,dqmf) reconstructs x exactly if [qmf,dqmf] is a nice pair of quadrature mirror filters, e.g. one made by MakeBSFilter.

See also

Authors

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