SpringerPlus

Table 3 Correlation coefficients of the plain and ciphered images

From: A new image encryption algorithm based on logistic chaotic map with varying parameter

Images	Horizontal	Vertical	Diagonal
Plain image	0.98496	0.97179	0.96853
Encrypt with T = 1	0.0088	0.0083	0.0121
Encrypt with T = 2	0.0053	0.0040	0.0062
Encrypt with T = 3	0.0021	0.0046	0.0033
Ref. (Wang and Guo 2014)	0.0063	0.0063	0.0069
Ref. (Hua et al. 2015)	0.0024	−0.0086	0.0402
Ref. (Tong et al. 2015)	0.0038	0.0058	0.0133

Back to article page