<< ITWT2_YM Periodic Meyer Wavelet Transform Tools IWT_YM >>

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IWT2_YM

2d Inverse Wavelet Transform (periodized Meyer Wavelet)

Calling Sequence

x = IWT2_YM(wc,L,deg)

Parameters

Inputs:

wc :

2-d wavelet transform, size(wc) = [2^J,2^J].

L :

Coarsest Level of V_0; L << J

deg:

degree of polynomial window 2 <= deg <=4

Outputs:

x :

1-d reconstructed signal; length(x) = 2^J

Description

The 2d Meyer wavelet transform is obtained by the command wc = FWT2_YM(x,L,deg)

To reconstruct x, use IWT2_YM.

The Meyer wavelet is defined in the frequency domain. The algorithm is very different from usual quadrature mirror filter algorithms. See the Ph. D. Thesis of Eric Kolaczyk.

See also

Authors

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