Research Article
Visually Meaningful Image Encryption Scheme Based on DWT and Schur Decomposition
Table 4
The variance value of test images.
| Plain image | Host image | Variance value | Host image | Cipher image | Visual image |
| Cameraman () | Lena | | 228.5859 | | Baboon | | 228.5859 | | Peppers | | 228.5859 | |
| Boat () | Sun | R | | 249.8594 | | G | | 263.8203 | | B | | 254.0781 | | Earth | R | | 249.8594 | | G | | 263.8203 | | B | | 254.0781 | |
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