A Reliable Image Watermarking Scheme Based on Redistributed Image Normalization and SVD

Table 3

Correlation values of the extracted watermarks by the proposed scheme corresponding to WM2.

Attack	City	Couple	Duck	Elaine	Flowers	House	Lena	Lighthouse	Parrots	Robots
NO	0.9807	0.9988	0.9978	0.9985	0.9988	0.9989	0.9986	0.9987	0.9984	0.9979
MF	0.5871	0.7304	0.8448	0.8461	0.6105	0.5177	0.8393	0.6925	0.8642	0.7410
AF	0.8342	0.9012	0.9151	0.9101	0.8589	0.8122	0.9067	0.8893	0.9377	0.8761
RO	0.9807	0.9988	0.9978	0.9985	0.9988	0.9989	0.9986	0.9987	0.9984	0.9979
FR	0.9807	0.9988	0.9978	0.9985	0.9988	0.9989	0.9986	0.9987	0.9984	0.9979
FC	0.9807	0.9988	0.9978	0.9985	0.9988	0.9989	0.9986	0.9987	0.9984	0.9979
PI	0.9760	0.9964	0.9966	0.9981	0.9934	0.9748	0.9971	0.9947	0.9959	0.9862
JPEG	0.9658	0.9869	0.9845	0.9869	0.9868	0.9857	0.9868	0.9862	0.9849	0.9843
MB	0.9122	0.9571	0.9620	0.9687	0.9409	0.9476	0.9611	0.9579	0.9693	0.9508
RS	0.9382	0.9769	0.9819	0.9830	0.9656	0.9417	0.9830	0.9701	0.9828	0.9712
GF	0.9638	0.9889	0.9889	0.9886	0.9844	0.9795	0.9887	0.9877	0.9933	0.9853
GN	0.7953	0.7968	0.7897	0.7989	0.7921	0.7884	0.8013	0.8090	0.8035	0.7819
SP	0.7210	0.7092	0.7069	0.7248	0.7350	0.6190	0.7229	0.7208	0.6696	0.6658
SN	0.7454	0.7979	0.7955	0.7658	0.7462	0.7201	0.7894	0.8164	0.8391	0.7838
GC	0.4754	0.3914	0.3607	0.3962	0.4208	0.4302	0.4042	0.3768	0.3675	0.4203
SH	0.9047	0.9363	0.9458	0.9532	0.9192	0.8638	0.9515	0.9336	0.9562	0.9188