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PSNR values for biometric (PSNRB) and signature (PSNRS).
| # | Attacks | PSNRB | PSNRS |
|---|---|---|---|
| 1 | Crop | 4.1422 | 23.5847 |
| 2 | Salt & pepper | 5.2669 | 6.9213 |
| 3 | Gaussian | 6.8711 | 7.3798 |
| 4 | Speckle | 5.4516 | 11.4783 |
| 5 | Rotation | 9.0110 | 7.2282 |
| 6 | Scale 2X | 24.0391 | 17.1220 |
| 7 | Scale 0.5X | 5.5592 | 7.5178 |
| 8 | Median | 6.6279 | 7.2673 |
| 9 | Sharpening | 4.7371 | 9.6499 |
| 10 | Motion blur | 4.3715 | 7.5336 |
| 11 | Average filter | 4.3984 | 7.8970 |
| 12 | Histogram equalization | 5.4978 | 10.2860 |
| 13 | JPEG | 5.4542 | 9.5644 |
| 14 | JPEG2000 | 6.4532 | 10.8961 |
