A Robust Image Watermarking in the Joint Time-Frequency Domain

EURASIP Journal on Advances in Signal Processing

Table 2 Correlations between the original and the extracted watermarks under Noise and Filtering attacks.

Attack	Lena	Baboon	Boats	Barbara
AWGN	0.9126	0.8592	0.9443	0.9045
AWGN	0.9070	0.8705	0.9383	0.8740
AWGN	0.9251	0.9053	0.9165	0.8772
AWGN	0.8981	0.9040	0.8372	0.9219
AWGN	0.8655	0.8183	0.8875	0.8796
SP Noise	0.9325	0.9354	0.9907	0.9689
SP Noise	0.9189	0.9221	0.9063	0.9291
SP Noise	0.8633	0.8721	0.8849	0.9139
SP Noise	0.8834	0.8712	0.8295	0.8936
SP Noise	0.8777	0.8616	0.8470	0.8737
WF	0.9834	0.9109	0.9923	0.9730
WF	0.9686	0.8851	0.9805	0.9532
WF	0.9687	0.8890	0.9815	0.9565
WF	0.9602	0.8168	0.9701	0.9154
WF	0.9813	0.8011	0.9940	0.9163
MF	0.3004	0.6862	0.3818	0.6111
MF	0.2580	0.3820	0.1761	0.5817
MF	0.4588	0.4429	0.3489	0.5800
MF	0.3975	0.4467	0.3215	0.5643
MF	0.4396	0.4498	0.3368	0.5773