A Novel Image Authentication with Tamper Localization and Self-Recovery in Encrypted Domain Based on Compressive Sensing

Table 3

PSNR and NC of the recovered images through the different proportion of cropping attacks.

Cropping ratio	PSNR (dB)			NC
	I_RE	I_new	I_final	I_RE	I_new	I_final
0	36.41	36.38	36.41	0.9987	0.9984	0.9987
1/64	34.51	33.58	34.47	0.9971	0.9921	0.9969
1/32	32.79	32.17	32.70	0.9943	0.9914	0.9986
1/16	30.90	29.51	30.09	0.9830	0.9247	0.9555
1/8	29.47	28.24	28.45	0.9797	0.9144	0.9390
1/4	28.11	26.86	27.04	0.9687	0.8166	0.8531