From: Adaptive reversible image watermarking algorithm based on IWT and level set
Attack type | Lena | Attack type | Lena |
---|---|---|---|
Original image | 79.46 | Salt and pepper noise (0.03) | 79.85 |
Shear 10% | 79.62 | Gaussian noise (0.03) | 79.76 |
Shear 20% | 80.11 | JPEG Q = 30 | 78.43 |
Gaussian filter (3 × 3, σ = 0.5) | 78.44 | JPEG Q = 50 | 79.84 |
4 × 4 median filtering | 78.87 | 3 × 3 median filtering | 78.16 |
Radius R | 80 | Radius R | 80 |