Sigma | PSNR (dB) | ||
ONLM | CNLM | Proposed | |
5 | 25.34 | 26.03 | 27.20 |
10 | 23.51 | 24.67 | 25.01 |
15 | 21.68 | 22.34 | 23.78 |
20 | 20.26 | 22.10 | 23.02 |
25 | 20.01 | 21.94 | 22.51 |