Research Article
A Fingerprint Image Encryption Scheme Based on Hyperchaotic Rössler Map
Table 1
Correlation coefficient of encrypted image.
| Image | Horizontal correlation | Vertical correlation | Diagonal correlation |
| Plain image | 0.8180 | 0.8670 | 0.8184 | Encryption without permutation | 0.0392 | 0.0082 | 0.0392 | Encryption with permutation | 0.0199 | | 0.0199 |
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