Research Article
Image Encryption Scheme Based on a Generalized Arnold Map and RSA Algorithm
Table 6
The information entropy and local entropy of test images.
| | Image | Plain-image | Cipher-image | Local shannon |
| | Boat | 7.19137 | 7.99934 | 7.95559 | | Man | 7.10904 | 7.99933 | 7.95658 | | Male | 7.52374 | 7.99982 | 7.95709 | | Peppers | 7.29780 | 7.99927 | 7.95268 | | Sailboat | 7.38963 | 7.99929 | 7.95583 | | Bird | 6.73746 | 7.99931 | 7.95701 | | Woman | 7.24185 | 7.99929 | 7.95257 | | Landscape | 7.45319 | 7.99984 | 7.95436 |
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