Table 2: Comparison of correlation coefficients of image.

Algorithm Image Original image Encrypted image
Horizontal Vertical Diagonal Horizontal Vertical Diagonal

Proposed Lena 0.9722 0.9527 0.9860 −0.0140 −0.0086 −0.0034
[1]Lena 0.95030.97550.9275 −0.0226 0.0041 0.0368
[2]Lena 0.9279700.9263310.839072 −0.010889 −0.018110 −0.006104
[5] Lena 0.946 0.973 0.921 −0.0055 −0.0075 0.0026
[6] Lena 0.9569 0.9236 0.9019 0.0042 −0.0043 0.0163