WAVETRANS2 - 2D wavelet transform by tensor-product of two 1D transforms
Function Prototype:
int waveTrans_2(float **x, float **y, waveFilter *filter,
int twopow1, int twopow2, int stage1, int stage2, int type);
Input:
x array[][] for the signal
y array[][] for the wavelet coefficients
filter wavelet filter structure
twopow1 2^pow1 is the length of the signal along 1st dimension
twopow2 2^pow2 is the length of the signal along 2nd dimension
stage1 stage of decomposition along 1st dimension
stage2 stage of decomposition along 2nd dimension
type 0 for decomposition, 1 for reconstruction
Author: Tong Chen, 04/12/95