Table 7 PSNR value of the restored image “Lena” with optimal values of c and λ is 26.01. Parameter sensitivity analysis for our proposed method M3 by percentage increased in values of the parameters c and λ, with the resultant percentage increase or decrease in PSNR of the denoised image of size (4002)
Image | 30% (↑) | 60% (↑) | ||||
|---|---|---|---|---|---|---|
c | λ | PSNR | c | λ | PSNR | |
Lena | 2.20 | 20.15 | 2.26 (↓) | 2.71 | 24.80 | 3.93 (↓) |