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iswt2

Two Dimensional Inverse Stationary Wavelet Transform

Calling Sequence

X0=iswt2(A,H,V,D,wname])
X0=iswt2(A,H,V,D,Lo_R,Hi_R)
X0=iswt2(SWC,wname])
X0=iswt2(SWC,Lo_R,Hi_R)

Parameters

A:

approximation coefficient

H:

horizontal detail coefficient

V:

vertical detail coefficient

D:

detail coefficient

SWC:

composite coefficient

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"

X0:

reconstruced signal

Lo_R:

lowpass synthesis filter

Hi_R:

highpass synthesis filter

Description

iswt2 is two dimenstional discrete inverse stationary wavelet transform utility.

Examples

x=rand(128,128);
[A,H,V,D]=swt2(x,3,'db2');
x0 = iswt2(A,H,V,D,'db2');

Authors

See also


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