wavepack2.comp.dct.lib

su 的源代码库

WAVEPACK2 - 2D Wavelet PACKet transform 

Function Prototype:
int wavePack_2(float **x, float **y, waveFilter *filter1, 
	waveFilter *filter2, int twopow1, int twopow2,
	int stage1, int stage2, int type);

Input:
x		array[][] for the signal
y 		array[][] for the wavelet coefficients
filter1		wavelet filter structure for the faster dimension
filter2		wavelet filter structure for the slower dimension
twopow1		2^pow is the length of the signal for the faster dimension 
twopow2		2^pow is the length of the signal for the slower dimension 
stage1		stage of decomposition for the faster dimension
stage2		stage of decomposition for the slower dimension
type		0 for decomposition, 1 for reconstruction
Author:		Tong Chen, 05/25/94