A Hidden Chaotic Attractor with an Independent Amplitude-Frequency Controller

Table 3

A correlation coefficient of two adjacent pixels in the original and encrypted on the pepper image.

Image	Channel	Horizontal	Vertical	Diagonal
Original image	B	0.98645	0.98782	0.97851
	G	0.99529	0.99282	0.98965
	R	0.99428	0.99168	0.98792
Encrypted image	B	0.00494	−0.02531	0.00540
	G	−0.01262	−0.01606	0.00444
	R	−0.00282	−0.01656	0.00919