Research Article
On the Cryptanalysis of a Bit-Level Image Chaotic Encryption Algorithm
Table 1
Information entropy of some encrypted images.
| | Image | Original image | Encrypted image | | R | G | B | R | G | B |
| | Lena | 7.314029 | 7.639443 | 7.050612 | 7.997213 | 7.997199 | 7.997233 | | Flower | 7.743743 | 7.130098 | 6.854102 | 7.997215 | 7.997182 | 7.99711 | | Greens | 7.743528 | 7.468523 | 5.834117 | 7.997192 | 7.997333 | 7.997374 | | Koala | 7.894208 | 7.849115 | 7.82162 | 7.997036 | 7.996995 | 7.997507 |
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