WaveletThreshold

WaveletThreshold[dwd] thresholds the detail wavelet coefficients in the DiscreteWaveletData object dwd.

WaveletThreshold[dwd,tspec] thresholds the coefficients using the thresholding specification tspec.

WaveletThreshold[dwd,tspec,wind] thresholds the wavelet coefficients given by the wavelet indices wind.

Please visit the official Wolfram Language Reference for more details and examples on core symbols.