Energy

・ N_g is the number of distinct grey-level in the quantized image.

・ p(i, j) is the (i, j)th entry in a normalized GLCM:

; R is a normalizing constant (in this study.

・ μ_x, μ_y, σ_x, and σ_y are the means and standard deviations of p_x and p_y; μ is the mean of μ_x and μ_y; p_x(i) and p_y(j) are the marginal-probabilities:

・ HX and HY are the entropies of p_x and p_y, respectively:

Contrast

Correlation

Variance

Homogeneity

Sum average

Sum variance

Sum entropy

Entropy

Difference variance

Difference entropy

Information measures of correlation

Maximal correlation coefficient

Auto-correlation

Dissimilarity

Cluster shade

Cluster prominence

Maximum probability