Table 8 Entropy for the distribution of decomposition structures of a resolution as induced by the anisotropic uniform distribution (g = 10, b = 1/ 4, c = 0)
From: Assessing JPEG2000 encryption with key-dependent wavelet packets
Res. at level | Quality | Entropy (anisouni) |
|---|---|---|
0 | 1 | 1321.9 |
1 | 1/2 | 660.5 |
2 | 1/4 | 329.7 |
3 | 1/8 | 164.4 |
4 | 1/16 | 81.7 |
5 | 1/32 | 40.3 |
6 | 1/64 | 19.7 |
7 | 1/128 | 9.3 |
8 | 1/256 | 4.2 |
9 | 1/512 | 1.5 |
10 | 1/1024 | 0.0 |