Research Article
Image Encryption Scheme Based on a Generalized Arnold Map and RSA Algorithm
Table 3
Correlation coefficients of different test images.
| Image | Plain-image | Cipher-image | Horizontal | Vertical | Diagonal | Horizontal | Vertical | Diagonal |
| Boat | 0.9379 | 0.9383 | 0.8790 | 0.0146 | 0.0026 | 0.0013 | Man | 0.9911 | 0.9850 | 0.9362 | 0.0065 | −0.0046 | −0.0017 | Male | 0.9182 | 0.9304 | 0.8746 | −0.0068 | 0.0163 | −0.0017 | Landscape | 0.5778 | 0.6379 | 0.5558 | −0.0035 | 0.0013 | −0.0053 |
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