A game-theoretic architecture for visible watermarking system of ACOCOA (adaptive content and contrast aware) technique

EURASIP Journal on Advances in Signal Processing

Table 7 Performance summaries of watermarked color images before and after JPEG 2000 compression at compression ratio 100:3

Method	MSSIM			VIF			PSNR-HVS-M (dB)			WSNR (dB)
	A(1)	A(2)	A(3)	B(1)	B(2)	B(3)	C(1)	C(2)	C(3)	D(1)	D(2)	D(3)
Lena
Before	0.933	0.943	0.973	0.693	0.599	0.718	22.685	27.462	30.056	21.598	28.129	29.592
After	0.912	0.927	0.954	0.326	0.306	0.357	22.092	26.420	28.036	21.213	27.337	28.100
After (wm)	0.971	0.969	0.968	0.467	0.465	0.378	32.047	31.605	31.859	34.588	34.276	34.478
Tiffany
Before	0.910	0.931	0.975	0.664	0.572	0.733	24.008	27.869	32.861	27.167	32.968	36.949
After	0.885	0.910	0.952	0.287	0.273	0.344	23.625	27.186	30.286	27.039	32.453	35.031
After (wm)	0.966	0.964	0.966	0.453	0.451	0.364	32.364	32.016	32.712	38.579	38.572	39.148

Note: A, B, C, and D are image quality metric of MSSIM, VIF, PSNR-HVS-M, and WSNR, respectively.
(1) is Huang and Tang's method [18].
(2) is Tsai's method [12].
(3) is the proposed ACOCOA approach.