A Hidden Chaotic Attractor with an Independent Amplitude-Frequency Controller

Table 4

Correlation coefficient test result [36].

Image	Channel	Horizontal	Vertical	Diagonal
Original image	Red	0.97489	0.98660	0.96227
	Green	0.97532	0.98731	0.96377
	Blue	0.95167	0.97112	0.92931
Encrypted image	Red	0.00070	0.01175	0.01539
	Green	0.00855	−0.01537	−0.01660
	Blue	0.00122	0.00135	0.01235