Table 3 Correlation coefficient of encrypted image.
From: A color image encryption scheme utilizing a logistic-sine chaotic map and cellular automata
Images | Â | Jelly | Baboon | House | Ref.32(2025) | Ref.33(2025) | |
|---|---|---|---|---|---|---|---|
Horizontal | R | − 0.0188 | − 0.0193 | 0.0221 | 0.0762 | -0.0099 | − 0.0112 |
|  | G | − 0.0390 | 0.0113 | − 0.0232 | 0.0875 | 0.0275 | − 0.0112 |
|  | B | − 0.0261 | -0.0342 | 0.0020 | 0.0704 | 0.0085 | − 0.0112 |
Vertical | R | − 0.0020 | -0.0327 | 0.0170 | 0.6654 | − 0.0007 | − 0.0115 |
|  | G | − 0.0569 | 0.0121 | − 0.0114 | 0.0787 | − 0.0099 | − 0.0115 |
|  | B | 0.0191 | 0.0060 | 0.0262 | 0.0598 | 0.0020 | − 0.0115 |
Diagonal | R | − 0.0158 | -0.0348 | 0.0030 | 0.0671 | 0.0052 | 0.0173 |
| Â | G | 0.0016 | 0.0170 | 0.0175 | 0.0751 | 0.0154 | 0.0173 |
|  | B | − 0.0040 | 0.0254 | − 0.0324 | 0.0637 | − 0.0122 | 0.0173 |
