Research Article
An Image Encryption Algorithm Based on Hyperchaotic System and Variable-Step Josephus Problem
Table 7
The results of local Shannon entropy.
| Images | Original images | Cipher images |
| Cameraman 256256 | 5.5319 | 7.9037 | Brain 256256 | 4.6936 | 7.8998 | White 256256 | 0 | 7.9033 | Lena 256256 | 6.5355 | 7.9040 |
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