Attacks | Watermarked scanner image | Watermarked Radiographic image | Watermarked Image Echo graphic Image | Watermarked image mammographic | ||||||||
BER | NC | SSIM | BER | NC | SSIM | BER | NC | SSIM | BER | NC | SSIM | |
No attack | 1.00 | 1.00 | 0.98 | 0.92 | 0.94 | 0.97 | 0.86 | 0.95 | 0.99 | 1.00 | 0.99 | 0.99 |
Gaussian filter [2 × 2] | 0.34 | 0.93 | 0.97 | 3.06 | 0.34 | 0.93 | 0.97 | 0.96 | 0.98 | 0.61 | 0.91 | 0.97 |
Gaussian filter [5 × 5] | 0.84 | 0.82 | 0.92 | 0.44 | 0.84 | 0.82 | 0.92 | 0.92 | 0.97 | 0.23 | 0.97 | 0.97 |
Gaussian noise [0.001] | 0.54 | 0.92 | 0.98 | 0.77 | 0.54 | 0.92 | 0.98 | 0.94 | 0.9 | 0.74 | 0.93 | 0.98 |
Gaussian noise [0.1] | 0.45 | 0.67 | 0.89 | 0.33 | 0.45 | 0.67 | 0.89 | 0.65 | 0.71 | 0.81 | 0.65 | 0.77 |
Salt & pepper (density = 0.01) | 0.69 | 0.54 | 0.78 | 0.77 | 0.69 | 0.54 | 0.77 | 0.69 | 0.54 | 0.77 | 0.79 | 0.64 |
Salt & pepper (density = 0.1) | 0.78 | 0.45 | 0.89 | 0.66 | 0.73 | 0.65 | 0.88 | 0.78 | 0.45 | 0.89 | 0.66 | 0.55 |
Resizing (scale = 0.3) | 0.67 | 0.81 | 0.89 | 0.87 | 4.67 | 0.89 | 0.89 | 3.67 | 0.81 | 0.82 | 0.67 | 0.88 |
Resizing (scale = 0.1) | 0.31 | 0.78 | 087 | 0.78 | 3.11 | 0.78 | 0.87 | 3.11 | 0.78 | 0.87 | 0.91 | 0.75 |
Median filter [3 × 3] | 0.67 | 0.98 | 0.93 | 0.98 | 0.67 | 0.98 | 0.93 | 0.67 | 0.98 | 0.93 | 0.87 | 0.98 |
Median filter [5 × 5] | 2.44 | 0.90 | 0.96 | 0.90 | 2.44 | 0.90 | 0.96 | 2.44 | 0.90 | 0.96 | 0.44 | 0.88 |
Rotation 10˚ | 4.27 | 0.89 | 0.91 | 0.89 | 4.27 | 0.89 | 0.91 | 4.27 | 0.89 | 0.91 | 0.89 | 0.88 |
Rotation 30˚ | 3.49 | 0.87 | 0.78 | 0.87 | 4.41 | 0.84 | 0.79 | 3.49 | 0.73 | 0.78 | 0.91 | 0.78 |