Sigma | PSNR (dB) | ||
ONLM | CNLM | Proposed | |
5 | 24.01 | 25.30 | 26.80 |
10 | 22.71 | 23.41 | 24.80 |
15 | 21.63 | 22.12 | 23.86 |
20 | 20.28 | 21.93 | 23.36 |
25 | 19.88 | 21.07 | 23.01 |