Research Article
Secure Image Authentication Scheme Using Double Random-Phase Encoding and Compressive Sensing
Table 5
Information entropies for various methods.
| Image | Information entropies | Plaintext | Ref. [41] | Ref. [42] | Ref. [43] | Ours |
| Camera | 7.0097 | 7.9966 | 7.9955 | 7.9964 | 7.9984 | Lena | 7.2045 | 7.9951 | 7.9965 | 7.9984 | 7.9983 | Baboon | 7.0091 | 7.9947 | 7.9963 | 7.9954 | 7.9982 | Peppers | 7.5813 | 7.9965 | 7.9958 | 7.9982 | 7.9984 |
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