From: A New Robust Watermarking Scheme to Increase Image Security
Attack type | Watermarked image PSNR | of extracted watermark | ||
---|---|---|---|---|
 |  | Mohanty method [24] | Asatryan method [27] | Proposed method |
No Attack | 48.27 dB | 0.9975 | 0.9988 | 0.9975 |
AF() + JP(50) | 29.49 dB | 0.6533 | 0.6898 | 0.7008 |
S(1/2) + B(3) + JP(60) | 28.91 dB | 0.5611 | 0.5709 | 0.5770 |
SH(1) + MF() | 29.25 dB | 0.5753 | 0.7128 | 0.6389 |
MF() + S(1/2) + JP(60) | 30.25 dB | 0.5901 | 0.4866 | 0.7178 |
GN(0,0.002) + MF() + JP(50) | 30.03 dB | 0.4569 | 0.5684 | 0.5360 |
GL() + CAR(1,1.2) + JP(50) | 26.38 dB | 0.7072 | 0.6079 | 0.8984 |
WF() + B(2) + JP(40) | 31.20 dB | 0.5310 | 0.6404 | 0.6696 |
B(2) + GN(0,0.002) + JP(50) | 29.38 dB | 0.4085 | 0.4402 | 0.5535 |
C(40%) | 18.01 dB | 0.1708 | 0.3508 | 0.4506 |
S(1/4) + JP(40) | 28.59 dB | 0.4598 | 0.2222 | 0.6341 |