Table 9 Comparison of correlation coefficients.
From: An image encryption scheme using 4-D chaotic system and cellular automaton
Image | Algorithm | Horizontal | Vertical | Diagonal |
|---|---|---|---|---|
Lena | Proposed | − 0.00075224 | − 0.0018227 | 0.00108 |
Lena | Bashir et al.10 | − 0.00932 | 0.010248 | − 0.005223 |
Lena | Malik et al.11 | 0.0012 | 0.0007 | − 0.0003 |
Lena | Jnana Ramakrishna et al.23 | − 0.00024 | − 0.00130 | − 0.00013 |
Lena | Norouzi et al.29 | − 0.00049 | − 0.00057 | 0.00021 |
Lena | Su et al.58 | 0.0050 | − 0.0001 | 0.0006 |
Lena | Bashir et al.55 | 0.023815 | − 0.0182048 | 0.0073787 |
