Sure shrinking
Purpose
Description
Macro Synopsis
Modules
Related Functions
References
Purpose
Noise reduction by wavelet sure shrinking
Description
"Sure shrinking" performs soft shrinking with three
different thresholds that are computed for each octave. For a detailed
discussion of how the thresholds are obtained and used see the paper
of Donoho [35].
Parameters:
- number n of octaves (decomposition depth of the discrete wavelet transform)
- noise level nl (estimated standard deviation)
Macro Synopsis
y = WaveletSureShrink(x,n,nl);
signal x,y;
int n;
float nl;
Modules
Wavelet
Related Functions
Define wavelet, Load wavelet,
Save wavelet, Decompose,
Reconstruct, Hard shrinking,
Soft shrinking.
References
Donoho [35], Donoho/Johnstone [56]