Efficient Encryption System for Numerical Image Safe Transmission

Table 3

ρ and NC values of the original image and its corresponding encrypted image.

Image	Status	NC	Horizontal	Vertical	Diagonal
Lena	Plain	−0.0010	0.80482	0.81942	0.82776
	Cipher		0.00027	−0.01339	−0.07913
Peppers	Plain	−0.0015	0.84679	0.97335	0.88347
	Cipher		0.00638	−0.06850	−0.05433
Baboon	Plain	0.0011	0.83045	0.87679	0.87929
	Cipher		0.00742	−0.00602	−0.10326
Walkbridge	Plain	0.00019	0.87108	0.87934	0.84997
	Cipher		0.00093	0.00380	−0.00776
Cameraman	Plain	0.0026	0.87790	0.89079	0.90087
	Cipher		0.00226	−0.00774	−0.00580
Jetplane	Plain	−0.0030	0.80839	0.81643	0.82083
	Cipher		−0.05928	0.00381	−0.15028