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Table 4 The expected average decomposition depth for isotropic WP distributions (b = 1/ 4, c = 0)

From: Assessing JPEG2000 encryption with key-dependent wavelet packets

Iso. g D g D g c D g f
1 0.5 0.857 1
2 1.41176 1.6406 1.90625
3 2.41174 2.3105 2.70703
4 3.41174 2.89673 3.40967
5 4.41174 3.40946 4.02496