A Simple Image Encryption Based on Binary Image Affine Transformation and Zigzag Process

Table 8

Correlation coefficients between various decrypted images shown in Figure 8.

Images	Correlation coefficients
Figures 7(a) and 7(b)	0.0019
Figures 7(a) and 7(c)	−5.0690e−04
Figures 7(a) and 7(d)	9.6489e−04
Figures 7(a) and 7(e)	−5.8923e−04
Figures 7(a) and 7(f)	1.4796e−04
Figures 7(b) and 7(c)	−0.0014
Figures 7(b) and 7(d)	−0.0014
Figures 7(b) and 7(e)	8.0764e−04
Figures 7(b) and 7(f)	−0.0018
Figures 7(c) and 7(d)	−0.0016
Figures 7(c) and 7(e)	−1.0391e−04
Figures 7(c) and 7(f)	0.0030
Figures 7(d) and 7(e)	0.0038
Figures 7(d) and 7(f)	0.0024
Figures 7(e) and 7(f)	8.9324e−04