Hard Threshold Applied to Wavelet Coefficients.
[out,wcoef,wcoefrest] = HT(Noisy,L,qmf,sigma,coef)
1-d signal. length(y)= 2^J
Low-Frequency cutoff for shrinkage (e.g. L=4) Should have L << J!
Quadrature Mirror Filter for Wavelet Transform Optional, Default = Symmlet 8.
Standard deviation of additive Gaussian White Noise.
estimate, obtained by applying hard thresholding on wavelet coefficients
Wavelet Transform of input signal
Wavelet Transform of estimate