Magnetic Resonance Image Denoising Algorithm Based on Cartoon, Texture, and Residual Parts

Table 5

Average PSNR values of denoising the cartoon, texture, and residual parts in order (W: Wiener filter, H: hard threshold, and S: soft threshold).

Noise variance	0.01	0.03	0.05	0.07	0.09
SHW	29.36	25.05	23.47	21.67	20.99
SWH	28.54	23.60	21.93	20.25	19.67
HSW	24.05	23.10	18.55	19.96	16.71
HWS	24.50	22.33	20.96	19.92	19.21
WSH	28.02	25.26	19.19	20.64	17.00
WHS (proposed)	29.71	25.85	23.69	22.16	20.99
Max	29.71	25.85	23.69	22.16	20.99