Table 6 Comparison of robustness (BCR) against image processing attacks between Feng et al. [13], Lin et al. [25], the DCT-only, and the DWT-DCT methods
From: Blind image watermarking technique based on differential embedding in DWT and DCT domains
Attack | Method | |||
|---|---|---|---|---|
Feng et al. [13] | Lin et al. [25] | DCT-only | DWT-DCT | |
Bit-plane | 96.3 | 85.9 | 100 | 100 |
removal (5 bits) | ||||
Gamma | 99.2 | 76.1 | 100 | 100 |
correction (3) | ||||
Gaussian | 87.5 | 79.5 | 96.3 | 94.9 |
noise (0.01) | ||||
Histogram | 99.3 | 94.5 | 100 | 100 |
equalization | ||||
Laplacian | 100 | 91.4 | 100 | 100 |
sharpening | ||||
Median | 97.1 | 99.2 | 41.6 | 100 |
filter (3 ×3) | ||||
Gaussian | 98.8 | 94.5 | 83.4 | 100 |
filter (5 ×5) | ||||
Salt and pepper | 93.3 | 85.9 | 99.1 | 98.3 |
noise (0.02) | ||||