σ | BM3D | DNCNN | FFDNET | IRCNN |
15 | 32.6064 | 33.5505 | 33.5520 | 33.5654 |
25 | 30.0634 | 30.9125 | 30.9394 | 30.9081 |
30 | 29.9264 | 30.0279 | 30.0704 | 29.9871 |