Table 5 Average bit error rates (in percentage) for three compared watermarking methods under various attacks
Attack type | DWT-SVD | LWT-DCT-SVD | DWT-AMM | DWT-AMMa (3) | DWT-AMMd (3) |
|---|---|---|---|---|---|
0. none | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
A | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 |
B | 0.00 | 0.00 | 0.76 | 0.50 | 0.95 |
C | 0.00 | 0.00 | 0.00 | 0.00 | 0.03 |
D | 19.57 | 25.07 | 3.66 | 0.21 | 49.45 |
E | 50.05 | 29.06 | 49.68 | 46.61 | 8.96 |
F | 46.33 | 31.82 | 0.00 | 0.00 | 0.00 |
G | 0.00 | 0.00 | 0.73 | 0.34 | 1.38 |
H | 0.00 | 0.00 | 3.46 | 1.56 | 9.32 |
I | 53.14 | 57.48 | 1.69 | 0.82 | 4.08 |
J | 1.22 | 1.92 | 0.02 | 0.01 | 0.01 |
K | 2.21 | 3.43 | 0.94 | 0.86 | 10.92 |
L | 1.07 | 0.83 | 0.91 | 0.70 | 2.22 |
M | 0.58 | 0.33 | 0.81 | 0.53 | 2.55 |
N | 5.35 | 14.47 | 1.64 | 0.67 | 28.80 |