<< wavefun2 orth_biorth_wavelets wrev >>

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wfilters

wavelet filter set

Calling Sequence

[Lo_D,Hi_D,Lo_R,Hi_R]=wfilters(wname)
[Lo_D,Hi_D]=wfilters(wname,'d')
[Lo_R,Hi_R]=wfilters(wname,'r')
[Lo_D,Lo_R]=wfilters(wname,'l')
[Hi_D,Hi_R]=wfilters(wname,'h')

Parameters

wname :

wavelet name, haar( "haar"), daubechies daubechies ("db1" to "db36"), coiflets ("coif1" to "coif17"), symlets ("sym2" to "sym20"), legendre ("leg1" to "leg9"), bathlets("bath4.0" to "bath4.15" and "bath6.0" to "bath6.15"), dmey ("dmey"), beyklin ("beylkin"), vaidyanathan ("vaidyanathan"), biorthogonal B-spline wavelets ("bior1.1" to "bior6.8"), "rbior1.1" to "rbior6.8"

Lo_D :

lowpass analysis filter

Hi_D :

highpass analysis filter

Lo_R :

lowpass synthesis filter

Hi_R :

highpass synthesis filter

Description

wfilters is an utility function for obtaining analysis and synthesis filter set.

Examples

[lo_d,hi_d,lo_r,hi_r]=wfilters('db2');

Authors

See also


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