19. The method of claim 14 , where the second order statistical features include at least one of entropy, homogeneity, energy, and correlation.
19. The method of claim 14 , where the second order statistical features include at least one of entropy, homogeneity, energy, and correlation. 23. The method of claim 19 , where correlation is defined as Σ θ 1 , θ 2 ⁢ ⁢ ( θ 1 - μθ 1 ) ⁢ ( θ 2 - μθ 2 ) ⁢ C ⁡ ( θ 1 , θ 2 ) σ θ 1 , σ θ 2 where θ 1 is a directional gland tensor for a first gland in a pair of glands, where the pair of glands is in the localized subgraph, where θ 2 is a directional gland tensor for a second gland in the pair of glands, and where C is the directional gland tensor co-occurrence matrix, where the directional gland tensor co-occurrence matrix is a b×b co-occurrence matrix.