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biorwavf

Biorthogonal spline wavelet filter

Description

example

[RF,DF] = biorwavf(wname) returns the reconstruction (synthesis) and decomposition (analysis) scaling filters, RF and DF, respectively, associated with the biorthogonal wavelet specified by wname.

Examples

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Return the biorthogonal spline wavelet scaling filters with two vanishing moments.

wname = 'bior2.2';
[RF,DF] = biorwavf(wname)
RF = 1×3

    0.2500    0.5000    0.2500

DF = 1×5

   -0.1250    0.2500    0.7500    0.2500   -0.1250

Input Arguments

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Name of biorthogonal wavelet, specified as 'biorNr.Nd' where possible values for Nr and Nd are as follows:

Nr = 1 Nd = 1 , 3 or 5
Nr = 2 Nd = 2 , 4 , 6 or 8
Nr = 3Nd = 1 , 3 , 5 , 7 or 9
Nr = 4 Nd = 4
Nr = 5 Nd = 5
Nr = 6 Nd = 8

Nr and Nd are the numbers of vanishing moments for the reconstruction and decomposition filters, respectively.

Example: 'biorwavf3.7'

Output Arguments

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Reconstruction filter associated with the biorthogonal wavelet wname, returned as a real-valued vector.

Decomposition filter associated with the biorthogonal wavelet wname, returned as a real-valued vector.

Introduced before R2006a