Fig. 6From: Nonlocal total variation based on symmetric Kullback-Leibler divergence for the ultrasound image despecklingResults obtained with compared filters applied to the liver ultrasound image. a The original image. b-d Outputs of the compared filters, b BNLTV, c SAR-BM3D, d The proposed method. BNLTV = Bayesian NLTV; SAR-BM3D = blocking matching 3D filter of SAR imageBack to article page