MakeCDJVFilter -- Set up filters for CDJV Wavelet Transform

Usage

[a,b,c] = MakeCDJVFilter(request,degree)

Inputs

request

string: 'HighPass', 'LowPass', 'Precondition', 'Postcondition'

degree

integer: 2 or 3 (number of vanishing moments)

Outputs

a,b,c filter, left edge filter, right edge filter

('HighPass', 'LowPass')

a conditioning matrix ('Precondition', 'Postcondition')

Description

CDJV have developed an algorithm for wavelets on the interval which preserves the orthogonality, vanishing moments, smoothness, and compact support of Daubechies wavelets on the line.

The algorithm for wavelets on the interval of CDJV involves four objects not present in the usual periodized algorithm: right edge filters, left edge filters, and pre- and post- conditioning operators.

These objects are supplied by appropriate requests to MakeCDJVFilter.

See Also

IWT_CDJV, FWT_CDJV, CDJVDyadDown

References

Cohen, Daubechies, Jawerth and Vial, 1992.