Fig. 7
An illustration of four line graphs labeled a through d showing OUTPUT S N R versus INPUT S N R in decibels, comparing M P E, S U R E, and a 45 degree line.

(Color online) Output SNR versus input SNR corresponding to the MPE- and SURE-based pointwise shrinkages, under various noise distributions. The output SNR values are calculated by averaging over 100 independent noise realizations. (a) Gaussian noise, (b) Laplacian noise, (c) Student’s-t noise, and (d) Multimodal noise.

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