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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