Image Encryption Technology Based on Fractional Two-Dimensional Triangle Function Combination Discrete Chaotic Map Coupled with Menezes-Vanstone Elliptic Curve Cryptosystem

Table 9

NPCR and UACI between cipher-images with slightly different plain-images.

Image	NPCR and UACI of Peppers
	NPCR (1-round %)	UACI (1-round %)	NPCR (2-round %)	UACI (2-round %)
Figure 12(a)(30, 30)	4.83	1.64	99.56	33.44
Figure 12(a)(50, 50)	81.44	27.35	99.62	33.50
Figure 12(a)(80, 80)	6.12	2.03	99.57	33.42
Figure 12(a)(100, 100)	6.83	2.32	99.60	33.50