Table 2 PSNR (In dB) and UIQI of the noisy testing images of Peppers, Lena, Cameraman and Boat with respect to different noise variances.
From: A scale-based forward-and-backward diffusion process for adaptive image enhancement and denoising
Image | Noise variance (σ2) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Â | 100 | 225 | 400 | 625 | 900 | |||||
| Â | PSNR | UIQI | PSNR | UIQI | PSNR | UIQI | PSNR | UIQI | PSNR | UIQI |
Peppers | 28.16 | 0.5411 | 24.71 | 0.4087 | 22.22 | 0.3232 | 20.31 | 0.2646 | 18.82 | 0.2237 |
Lena | 28.14 | 0.5024 | 24.60 | 0.3891 | 22.15 | 0.3137 | 20.22 | 0.2617 | 18.70 | 0.2221 |
Cameraman | 28.27 | 0.3806 | 24.86 | 0.3066 | 22.45 | 0.2585 | 20.56 | 0.2227 | 19.03 | 0.1945 |
Boat | 28.13 | 0.6322 | 24.63 | 0.5031 | 22.17 | 0.4132 | 20.27 | 0.3467 | 18.73 | 0.2960 |