Blockchain-Based Reversible Data Hiding for Securing Medical Images

Table 2

Experimental results of the MRI medical images with different thresholds.

Image	Metrics	= 4	= 8	= 16	= 32	= 64
Medical A	Capacity	39671	43490	48507	52655	56038
	Metadata	66	114	234	738	1554
	ER (bpp)	0.6	0.66	0.74	0.8	0.85
	PSNR	70.1	57.02	42.68	37.44	35.34
	SSIM	0.9999	0.9999	0.9989	0.9971	0.9953
Medical B	Capacity	40608	43388	46851	50168	53448
	Metadata	138	258	546	1122	4338
	ER (bpp)	0.61	0.66	0.71	0.76	0.81
	PSNR	49.6	45.67	41.45	37.48	30.82
	SSIM	0.9999	0.9996	0.999	0.9976	0.9871