Table 4 Watermark algorithm robustness by using a watermark with a length of 104 bits, and a perceptive mask
From: Robust watermark technique using masking and Hermite transform
Image | Gaussian filter (9) | Median filter (8) | Gaussian noise (11) | SP noise (11) | JPEG (21) | Scale (19) | Rotation (37) | X shear. (26) | Y shear. (26) |
|---|---|---|---|---|---|---|---|---|---|
Lena | 5 | 0 | 0 | 0 | 7 | 3 | 24 | 15 | 3 |
Pirate | 5 | 0 | 0 | 0 | 15 | 6 | 26 | 7 | 13 |
Blondie | 8 | 0 | 2 | 1 | 14 | 8 | 34 | 21 | 20 |
Cisne | 9 | 1 | 2 | 3 | 13 | 14 | 36 | 3 | 3 |