Analytic Study of a Novel Color Image Encryption Method Based on the Chaos System and Color Codes

Table 6

Correlation coefficient values of two adjacent pixels of onion (198 × 135 pixels) ciphered image.

Direction	Red		Green		Blue
	Original image	Cipher image	Original image	Cipher image	Original image	Cipher image
Horizontal	0.9826	−0.0007	0.9786	−0.0068	0.9648	0.0003
Vertical	0.9900	−0.0034	0.9880	0.0046	0.9751	−0.0018
Diagonal	0.9721	−0.0054	0.9675	−0.0083	0.9427	−0.0021