Image Encryption Scheme Based on a Generalized Arnold Map and RSA Algorithm

Table 3

Correlation coefficients of different test images.

Image	Plain-image			Cipher-image
	Horizontal	Vertical	Diagonal	Horizontal	Vertical	Diagonal
Boat	0.9379	0.9383	0.8790	0.0146	0.0026	0.0013
Man	0.9911	0.9850	0.9362	0.0065	−0.0046	−0.0017
Male	0.9182	0.9304	0.8746	−0.0068	0.0163	−0.0017
Landscape	0.5778	0.6379	0.5558	−0.0035	0.0013	−0.0053