A Novel Image Encryption Scheme Based on PWLCM and Standard Map

Table 2

Correlation analysis.

File name	Directions	Plain image	Proposed	Reference [18]
5.1.09.tiff	H	0.9051	−0.0062	−0.0109
	V	0.9417	0.0278	−0.0067
	D	0.9078	0.0061	−0.0089
5.1.10.tiff	H	0.9012	0.0251	−0.0138
	V	0.8553	−0.0228	−0.0043
	D	0.8338	−0.0098	−0.0221
5.1.11.tiff	H	0.9592	0.0307	−0.0133
	V	0.9419	−0.0250	0.0121
	D	0.8878	−0.0261	−0.0042
5.1.12.tiff	H	0.9538	−0.0031	−0.0059
	V	0.9747	−0.0196	−0.0148
	D	0.9327	−0.0110	0.0072
5.1.13.tiff	H	0.8762	−0.0185	0.0102
	V	0.8597	0.0043	−0.0104
	D	0.7537	0.0219	−0.0092
5.1.14.tiff	H	0.9477	0.0059	0.0122
	V	0.9009	−0.0149	−0.0227
	D	0.8478	0.0094	−0.0073