Table 4.
Color images' denoising results (PSNR/SSIM).
| Image | σ n | GSR | WNNM | SOLST | STROLLR | STLWSM |
|---|---|---|---|---|---|---|
| House | 15 | 38.89/0.507 | 50.87/0.980 | 47.76/0.960 | 43.06/0.756 | 55.73/0.992 |
| 20 | 35.08/0.550 | 48.43/0.967 | 45.35/0.933 | 40.14/0.645 | 53.35/0.987 | |
| 30 | 30.90/0.448 | 45.96/0.937 | 41.91/0.865 | 36.37/0.477 | 53.04/0.978 | |
| 40 | 28.24/0.356 | 43.40/0.896 | 39.45/0.788 | 33.73/0.364 | 50.63/0.963 | |
| 50 | 26.24/0.268 | 43.86/0.808 | 37.54/0.710 | 31.71/0.287 | 50.86/0.955 | |
| 75 | 22.67/0.152 | 41.19/0.359 | 34.05/0.534 | 28.19/0.176 | 48.14/0.905 | |
|
| ||||||
| House 2 | 15 | 38.20/0.329 | 50.78/0.980 | 47.74/0.960 | 43.19/0.770 | 55.55/0.992 |
| 20 | 34.87/0.319 | 48.37/0.967 | 45.33/0.933 | 40.26/0.663 | 53.25/0.986 | |
| 30 | 30.85/0.265 | 45.88/0.937 | 41.90/0.865 | 36.44/0.466 | 52.97/0.978 | |
| 40 | 28.22/0.211 | 43.42/0.896 | 39.44/0.789 | 33.80/0.383 | 50.57/0.963 | |
| 50 | 26.23/0.172 | 43.82/0.809 | 37.54/0.710 | 31.76/0.278 | 50.84/0.955 | |
| 75 | 22.67/0.109 | 41.22/0.358 | 34.05/0.533 | 28.21/0.190 | 48.15/0.907 | |
|
| ||||||
| Lake | 15 | 38.10/0.484 | 50.67/0.979 | 47.71/0.959 | 42.93/0.746 | 55.29/0.990 |
| 20 | 34.83/0.461 | 48.27/0.965 | 45.31/0.932 | 40.08/0.635 | 53.09/0.985 | |
| 30 | 30.84/0.381 | 45.83/0.935 | 41.89/0.864 | 36.32/0.466 | 52.82/0.977 | |
| 40 | 28.22/0.291 | 43.38/0.895 | 39.44/0.788 | 33.71/0.354 | 50.48/0.962 | |
| 50 | 26.23/0.226 | 43.78/0.808 | 37.54/0.710 | 31.68/0.278 | 50.72/0.954 | |
| 75 | 22.67/0.130 | 41.22/0.359 | 34.04/0.534 | 28.16/0.169 | 48.08/0.906 | |
|
| ||||||
| Pepper | 15 | 38.52/0.535 | 50.74/0.978 | 47.74/0.959 | 42.94/0.744 | 55.28/0.989 |
| 20 | 34.97/0.492 | 48.33/0.964 | 45.33/0.932 | 40.07/0.632 | 53.06/0.984 | |
| 30 | 30.88/0.439 | 45.84/0.933 | 41.98/0.864 | 39.52/0.476 | 52.73/0.975 | |
| 40 | 28.23/0.344 | 43.35/0.892 | 39.45/0.787 | 33.69/0.348 | 50.45/0.959 | |
| 50 | 26.24/0.279 | 43.81/0.805 | 37.54/0.709 | 31.70/0.272 | 50.61/0.950 | |
| 75 | 22.67/0.158 | 41.18/0.358 | 34.05/0.534 | 28.16/0.164 | 47.95/0.900 | |
|
| ||||||
| Plane | 15 | 38.44/0.451 | 50.82/0.980 | 47.74/0.961 | 43.31/0.782 | 55.57/0.992 |
| 20 | 34.94/0.431 | 48.37/0.967 | 45.34/0.939 | 40.35/0.676 | 53.25/0.987 | |
| 30 | 30.87/0.348 | 45.88/0.937 | 41.91/0.867 | 36.51/0.511 | 52.95/0.979 | |
| 40 | 28.23/0.265 | 43.41/0.896 | 39.45/0.790 | 33.85/0.397 | 50.55/0.963 | |
| 50 | 26.23/0.204 | 43.85/0.809 | 37.54/0.712 | 31.81/0.318 | 50.79/0.955 | |
| 75 | 22.67/0.117 | 41.17/0.358 | 34.05/0.534 | 28.23/0.200 | 48.14/0.906 | |
|
| ||||||
| Woman 2 | 15 | 38.82/0.398 | 50.73/0.979 | 47.74/0,959 | 42.89/0.737 | 55.36/0.990 |
| 20 | 35.07/0.390 | 48.32/0.965 | 45.34/0.932 | 40.03/0.623 | 53.11/0.985 | |
| 30 | 30.90/0.302 | 45.86/0.934 | 41.90/0.863 | 36.29/0.451 | 52.73/0.976 | |
| 40 | 28.23/0.227 | 43.42/0.893 | 39.44/0.786 | 33.67/0.338 | 50.39/0.960 | |
| 50 | 26.24/0.174 | 43.84/0.805 | 37.53/0.708 | 31.67/0.264 | 50.61/0.951 | |
| 75 | 22.67/0.102 | 41.14/0.357 | 34.04/0.533 | 28.14/0.157 | 47.93/0.901 | |