FWT3_PO {rwavelet}

3-d MRA Forward Wavelet Transform (periodized, orthogonal)

Description

A three-dimensional wavelet transform is computed for the array x. qmf filter may be obtained from MakeONFilter. To reconstruct, use IWT3_PO.

Usage

FWT3_PO(x, L, qmf)

Arguments

x

3-d array (n by n by n array, n dyadic).

L

coarse level.

qmf

quadrature mirror filter.

Details

3-D counterpart of Donoho's FWT2_PO, original matlab code Vicki Yang and Brani Vidakovic.

Value

wc 3-d wavelet transform.

See Also

IWT3_PO, MakeONFilter.

Examples

qmf <- MakeONFilter('Daubechies', 10)
L <- 3
x <- array(rnorm(32^3), c(32,32,32))
wc <- FWT3_PO(x, L, qmf)