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

Table 14

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

Image	NPCR and UACI of Boat
	NPCR (1-round %)	UACI (1-round %)	NPCR (2-round %)	UACI (2-round %)
Figure 17(a)(30, 30)	4.83	1.60	99.59	33.47
Figure 17(a)(50, 50)	81.46	27.45	99.62	33.59
Figure 17(a)(80, 80)	80.82	27.24	99.58	33.48
Figure 17(a)(100, 100)	6.82	2.32	99.62	33.61