A high capacity reversible data hiding through multi-directional gradient prediction, non-linear regression analysis and embedding selection

EURASIP Journal on Image and Video Processing

Table 2 Comparison of PSNR and SSIM for our schemes on Baboon image

Scheme	Payload	Payload	Payload	Payload	Payload
	= 7864	= 23,593	= 44,564	65,536	= 86,508
	PSNR	PSNR	PSNR	PSNR	PSNR
	SSIM	SSIM	SSIM	SSIM	SSIM
Proposed	52.56	45.85	40.17	38.33	36.23
	0.9981	0.9894	0.9824	0.9695	0.9571
Proposed (sort)	53.03	46.24	41.60	38.78	36.52
	0.9999	0.9942	0.9853	0.9748	0.9644
Proposed (selection)	55.78	47.39	42.72	39.55	37.27
	0.9999	0.9943	0.9857	0.9755	0.9643
Difference	+ 3.22	+ 1.54	+ 2.55	+ 1.22	+ 1.04
	+ 0.0009	+ 0.0049	+ 0.0033	+ 0.006	+ 0.0072