Table 1.
Parameters for Gaussian, Rayleigh and exponentialnoise of synthetic images
| Distribution | Parameter |
Noise intensity (dB) |
||||||
|---|---|---|---|---|---|---|---|---|
| 20 | 18 | 16 | 14 | 12 | 10 | 8 | ||
| Gaussian | σ | 0.0766 | 0.0966 | 0.1214 | 0.1530 | 0.1929 | 0.2430 | 0.3091 |
| Rayleigh | b | 0.0277 | 0.0398 | 0.0539 | 0.0725 | 0.0980 | 0.1335 | 0.1858 |
| Exponential | a | 14.0361 | 10.0361 | 8.3389 | 6.8749 | 5.6862 | 4.6894 | 3.8549 |
Note: σ, standard deviation for Gaussian distribution with median μ = 0; b, scale for Rayleigh distribution with shifting parameter α = 0; a, scale parameter for exponential distribution.