Research Article
A New Multistage Encryption Scheme Using Linear Feedback Register and Chaos-Based Quantum Map
Table 2
Local entropy measures for different sizes of Lena image.
| Lena image | Entropy value | | TB | R | G | B |
| 16 | | 5.9635 | 5.8740 | 5.9954 | 32 | | 6.8951 | 6.0147 | 6.5214 | 64 | | 6.0589 | 5.9959 | 56.0028 | 128 | | 6.5230 | 6.5024 | 6.5804 | 256 | | 7.8111 | 7.8047 | 7.9852 | 512 | | 7.8974 | 7.9632 | 7.9841 |
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