[Retracted] Medical Image Encryption Based on 2D Zigzag Confusion and Dynamic Diffusion

Table 10

Results of NPCR and UACI between cipher text images.

Cipher image
		CT	NPCR (%)	99.6155	99.6140	99.6086	99.6349	98.6584	98.1796	99.6170	99.6071
UACI (%)	33.4619		33.4497	33.3950	33.5288	32.5783	31.9500	33.4280	33.4726
X-ray	NPCR (%)	99.6153	99.5949	99.6130	99.5992	98.9952	98.5431	99.6140	99.6110
	UACI (%)	33.4954	33.4653	33.4467	33.4728	33.2973	32.6806	33.4590	33.4543