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Wavelab Toolbox >> Wavelab Toolbox > Bi-Orthogonal Wavelet Transform tools > IWT2_SBS

IWT2_SBS

Inverse 2d Wavelet Transform

Calling Sequence

x = IWT2_SBS(wc,L,qmf,dqmf)

Parameters

Inputs:

wc :

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

L :

coarse level

qmf :

low-pass quadrature mirror filter

dqmf:

high-pas 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_SBS(x,L,qmf,dqmf) then x = IWT2_SBS(wc,L,qmf,dqmf) reconstructs x exactly if qmf is a nice quadrature mirror filter, e.g. one made by MakeBioFilter

Authors

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