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

Table 1

Correlation coefficients of image.

Image	Original image			Encrypted image
	Horizontal	Diagonal	Vertical	Horizontal	Diagonal	Vertical
Cameraman	0.9276	0.9120	0.9597	0.0119	−0.0021	−0.0025
Lena	0.9722	0.9527	0.9860	−0.0140	−0.0086	−0.0034
Peppers	0.9667	0.9382	0.9694	−0.0088	0.0080	−0.0054
Lake	0.9768	0.9544	0.9748	−0.0155	0.0101	−0.0088
Dollar	0.8035	0.6952	0.6938	0.0131	−0.0183	0.0263
Columbia	0.9727	0.9403	0.9705	0.0060	−0.0104	−0.0093
Lax	0.7889	0.7151	0.8483	−0.0107	0.0147	0.0107
Boat	0.9407	0.9158	0.9545	0.0169	−0.0074	−0.0077
Aerial	0.9135	0.7952	0.8677	0.0084	−0.0123	−0.0133