Research Article
A Class of Fourth-Order Telegraph-Diffusion Equations for Image Restoration
Table 3
The mean of ISNR (in dB) values for eight standard test images using random white Gaussian noise of variance 20.
| | Methods | Noise images | | Lena | Boats | Cameraman | Peppers | House | Elaine |
| | PM model | 4.3275 | 4.1487 | 4.0326 | 5.1120 | 4.2726 | 5.1737 | | TDE model | 4.4662 | 4.2745 | 4.1689 | 5.2022 | 4.3996 | 5.2461 | | ITDE model | 4.5743 | 4.3948 | 4.2917 | 5.2872 | 4.5127 | 5.3830 | | Fourth-order TDE | 4.7125 | 4.5222 | 4.4134 | 5.4431 | 4.6475 | 5.5705 |
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