A Robust Watermarking Scheme Based on Maximum Wavelet Coefficient Modification and Optimal Threshold Technique

Table 3

Comparisons of robustness against JPEG2000 compression.

	0.1	0.125	0.15	0.2	0.25	0.3	0.4	0.5	0.6
WTQ [14] (39.6 dB)	—	—	—	—	—	0.25	0.36	0.48	0.61
SD-QIM [32] (43.3 dB)	0.35	0.56	0.61	0.63	0.84	0.99	0.99	0.99	1
Our method (42.2 dB)	0.59	0.88	0.93	0.96	0.99	0.99	1	1	1