Research Article
An Unequal Image Privacy Protection Method Based on Saliency Detection
Table 8
Entropy analysis of three channels.
| | Original image | Channel | Entropy | | Significant regions | Cipher blocks |
| | Eagle | R | 6.7955 | 7.9883 | | G | 6.6199 | 7.9883 | | B | 5.8452 | 7.9883 |
| | Chicken | R | 7.1462 | 7.9951 | | G | 6.9712 | 7.9951 | | B | 6.9004 | 7.9951 |
| | Leaf | R | 7.2890 | 7.9921 | | G | 7.1148 | 7.9921 | | B | 6.9236 | 7.9921 |
| | Dear | R | 7.2562 | 7.9919 | | G | 7.2000 | 7.9919 | | B | 6.9812 | 7.9919 |
| | Ball | R | 7.7168 | 7.9891 | | G | 7.2286 | 7.9891 | | B | 5.1497 | 7.9891 |
| | Squirrel | R | 7.2491 | 7.9973 | | G | 7.5227 | 7.9973 | | B | 7.3945 | 7.9973 |
|
|
