Research Article
Improved Chaos-Based Cryptosystem for Medical Image Encryption and Decryption
Table 10
Entropy value of encrypted black and white images.
| | Tool | Entropy | Correlation coefficient | | Global | Local | H | V | D |
| | Plain black image | 0 | 0 | — | — | — | | Encrypted black image | 7.9998 | 7.9574 | −0.0023 | −0.0042 | −0.00354 | | Plain white image | 0 | 0 | — | — | — | | Encrypted white image | 7.9998 | 7.9574 | −0.0035 | −0.0029 | −0.00173 |
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