Table 3. Haralick features used for texture analysis.

Feature Name	Equation	#
Angular Second Moment (ASM), Homogeneity	$={\displaystyle \sum _{i=1}^G}{\displaystyle \sum _{j=1}^G}{\left\{P\left(i,j\right)\right\}}^2$	12
Contrast (CON)	$={\displaystyle \sum _{n=1}^G}{n}^2\left\{{\displaystyle \sum _{i=1}^G}{\displaystyle \sum _{j=1}^G}\right\{P\left(i,j\right)\},\left|i-j\right|=n$	13
Inverse Difference Moment (IDM)	$={\displaystyle \sum _{i=1}^G}{\displaystyle \sum _{j=1}^G}\frac{1}{1+{\left(i-j\right)}^2}P\left(i,j\right)$	14
Entropy II (ENT)	$=-{\displaystyle \sum _{i=1}^G}{\displaystyle \sum _{j=1}^G}P\left(i,j\right)\times \text{log}\left(P\left(i,j\right)\right)$	15
Correlation (CORR)	$={\displaystyle \sum _{i=1}^G}{\displaystyle \sum _{j=1}^G}\frac{\left\{i\times j\right\}\times P\left(i,j\right)-\left\{{\mu }_x\times {\mu }_y\right\}}{{\sigma }_x\times {\sigma }_y}$	16
Variance II (VAR)	$={\displaystyle \sum _{i=1}^G}{\displaystyle \sum _{j=1}^G}{\left(i-\mu \right)}^{2}P\left(i,j\right),\mu =\frac{1}{G^2}{\displaystyle \sum _{i=1}^G}{\displaystyle \sum _{j=1}^G}\left\{P\left(i,j\right)\right\}$	17
Sum Average (AVER)	$={\displaystyle \sum _{k=2}^{2G}}k\left(P_{x+y}\right)\left(k\right)$	18
Sum Entropy (SENT)	$=-{\displaystyle \sum _{k=2}^{2G}}{P}_{x+y}\left(k\right)\text{log}\left(P_{x+y}\left(k\right)\right)$	19
Difference Entropy (DENT)	$=-{\displaystyle \sum _{k=0}^{G-1}}{P}_{x-y}\left(k\right)\text{log}\left(P_{x-y}\left(k\right)\right)$	20
Cluster Shade (SHADE)	$={\displaystyle \sum _{i=1}^G}{\displaystyle \sum _{j=1}^G}{\left\{i+j-{\mu }_x-{\mu }_y\right\}}^3\times P\left(i,j\right)$	21
Cluster Prominence (PROM)	$={\displaystyle \sum _{i=1}^G}{\displaystyle \sum _{j=1}^G}{\left\{i+j-{\mu }_x-{\mu }_y\right\}}^4\times P\left(i,j\right)$	22