Table 9 Comparison between correlation coefficients of plain and encrypted images.
From: A new multiple image encryption algorithm using hyperchaotic systems, SVD, and modified RC5
| Â | Plain image | Encrypted image | ||||
|---|---|---|---|---|---|---|
Image | Horizontal | Diagonal | Vertical | Horizontal | Diagonal | Vertical |
House | 0.978232 | 0.936044 | 0.952926 | \(-0.00392847\) | \(-0.00247355\) | \(-0.0066417\) |
Peppers | 0.959422 | 0.930426 | 0.966795 | 0.00532219 | \(-0.000599774\) | 0.00445526 |
Mandrill | 0.848778 | 0.750624 | 0.79088 | 0.000208593 | \(-0.00393718\) | 0.000522149 |
Sailboat | 0.952381 | 0.919872 | 0.950138 | 0.00081823 | 0.00371487 | \(-0.00346439\) |
Satellite Image 4 | 0.975433 | 0.936835 | 0.964613 | \(-0.0037992\) | \(-0.00479489\) | 0.00632025 |
Satellite Image 5 | 0.886065 | 0.750058 | 0.843695 | \(-0.00423551\) | \(-0.00331787\) | 0.00217491 |
