Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Watermark simulation related parameters
| Attack mode | Parameter | Normalized parameters | Signal to noise ratio (db) |
|---|---|---|---|
| unassailed | nothing | 0.894375 | 38.424410 |
| 95%JPEG compress | 95% | 0.894085 | 38.293235 |
| 45%JPEG compress | 45% | 0.754401 | 35.026503 |
| Gaussian noise | 1/4 | 0.547445 | 20.157188 |
| Salt and pepper noise | 0.002 | 0.664663 | 21.999809 |
| Rotate | 2° | 0.796050 | 23.123601 |
| Rotate | 95° | 0.779734 | 19.440330 |
| Shear | 1/4 | 0.664663 | 11.225899 |