Chaotic Image Encryption Design Using Tompkins-Paige Algorithm

Table 2

Comparison of correlation coefficient of the proposed method and the other methods.

Correlation coefficient	Mao et al. [6]	Zhang et al. [9]	Gao et al. [10]	Zhou et al. [32]	Proposed encrypted image (Figure 13)
Horizontal (H)	0.045	0.082	0.016	0.012	0.005
Vertical (V)	0.028	0.040	0.065	0.027	0.011
Diagonal (D)	0.021	0.005	0.032	0.007	0.023
(H^2+V^2+D^2)^0.5	0.057	0.091	0.074	0.030	0.026
Average (H, V, D)	0.031	0.042	0.038	0.015	0.013