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swt >> orth_biorth_wavelets > wavefun2

wavefun2

2-D Wavelet and Scaling Functions

Calling Sequence

[S,W1,W2,W3,XYVAL]=wavefun2(wname,ITER)

Parameters

wname:

wavelet name, haar( "haar"), 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", Kingsbury ("ksq1", "ksq2"), Farras ("fa1", fa2)

ITER:

iteration cycle, default is 4, large cycle may consume more time

S :

tensor product of PHI and PHI

W1:

tensor product of PHI and PSI

W2:

tensor product of PSI and PHI

W3:

tensor product of PSI and PSI

XYVAL:

2-D time domain grid

Description

wavefun2 is an utility to get 2-D scaling function phi and wavelet function psi. Only available on orthogonal wavelets. ITER should be small integers for short computation time.

Examples

[S,W1,W2,W3,XYVAL]=wavefun2('sym4',4);

Authors

See also


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