A New Hybrid Chaotic Map and Its Application on Image Encryption and Hiding

Table 2

Correlation coefficient comparison.

	Between two adjacent pixels			Between corresponding pixels in two different images
		Plain image	Ciphered image	Different ciphered images^2	Plain-ciphered
Correlation coefficient	Vertical	0.96684049	7.16211445×10^−5	7.29256967×10^−4	−0.00135729535
	Horizontal	0.954339329	−0.0010516
	Diagonal	0.935083629	0.00151382

2 The two difference ciphered images’ corresponding plain images only have one gray pixel in difference.