Table 3.

Textural analysis and radiometric indexes employed in this research.

S-2 Indexes		References
Index Applied	Equation *
NDVI	$\frac{\mathrm{NIR}-\mathrm{Red}}{\mathrm{NIR}+\mathrm{Red}}$	[68]
NDWI	$\frac{\mathrm{NIR}-\mathrm{MIR}}{\mathrm{NIR}+\mathrm{MIR}}$	[69]
SAVI	$\frac{\mathrm{L}\times (\mathrm{NIR}-\mathrm{Red})}{\mathrm{NIR}+\mathrm{Red}+0.5}$	[70]
S-1 GLCM Textural Measures
Mean	${\displaystyle \sum _{\mathrm{i},\mathrm{j}=0}^{\mathrm{N}-1}}{\mathrm{iP}}_{\mathrm{i},\mathrm{j}}$	[46]
Variance	${\displaystyle \sum _{\mathrm{i},\mathrm{j}=0}^{\mathrm{N}-1}}{\mathrm{iP}}_{\mathrm{i},\mathrm{j}}\left(\mathrm{i}-\mathsf{\mu }\right)²$
Correlation	$\frac{{\sum }_{\mathrm{i},\mathrm{j}=0}^{\mathrm{N}-1}{\mathrm{iP}}_{\mathrm{i},\mathrm{j}}-{\mathsf{\mu }}_{\mathrm{x}}{\mathsf{\mu }}_{\mathrm{y}}}{{\mathsf{\sigma }}_{\mathrm{x}}{\mathsf{\sigma }}_{\mathrm{y}}}$

* Where NIR is the near infrared band, 842 nm for S-2, for NDVI, NDWI, and SAVI; Red is 665 nm for S-2 for NDVI and SAVI; MIR (Medium Infrared) is 2190 nm for S-2, for NDWI; P(i,j) is a normalized gray-tone spatial dependence matrix such that SUM(i,j = 0, N − 1) (P(i,j)) = 1; i and j represent the rows and columns, respectively, for the measures of Mean, Variance and Correlation; μ is the mean, for the Variance textural measure; and N is the number of distinct grey levels in the quantized image; μ_x. μ_y, σ_x, and σ_y are the means and standard deviations of p_x and p_y, respectively, for the correlation textural measure.