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Fig. 5
Wavelet denoising by hard-thresholding, using parameters λ = 2 and J0 = 0 and scale-discretised generating functions. When using needlets and B-spline wavelets, the denoised signals have S / N(d) = 14.68 dB and 14.46 dB respectively. This example is included in S2LET as a documented demo program.
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