Algorithm 1 Detection of pre-exiting termite mounds with hyperspectral imaging.
	Input: raw hyperspectral image file
	Pre-processing
1.	Calculate hyper-cube radiance
2.	Perform Orthorectification process
3.	Load GPS coordinates from register file, and obtain a ROI
4.	Apply closing operator once            ▷ structuring element: 3 × 3 rectangle
	Material Classification
5.	Load illuminant spectrum from white reference
6.	Calculate reflectance
7.	Load material reflectance library
8.	Run SVM classifier
9.	Filter segmented material layers: “Eroded Soil” and “Light Grass”
	Object Detection
10.	Apply Smooth-Median Filter on soil layer                 ▷ kernel size: 3
11.	Apply closing operator on soil layer once      ▷ structuring element: 3 × 3 rectangle
12.	Create a temporal Image $T1$
13.	$T1\leftarrow$ double dilation operator on soil layer      ▷ structuring element: 3 × 3 ellipse
14.	Apply Smooth-Median Filter on grass layer               ▷ kernel size: 3
15.	Create a temporal Image $T2$
16.	$T2\leftarrow$ AND operator between grass layer and $T1$
17.	if Mean($T2$) $=0.0$ then return null
18.	end if
19.	Find contours from the soil layer
20.	for $i\leftarrow 0,n$ do                 ▷ $n=$ number of detected soil contours
21.	Select $SC\left(i\right)$                   ▷ $SC\left(i\right)=$ soil contour at i index
22.	Run $MatchShapes$ method                   ▷ output: $ratio$
23.	$Psc\leftarrow$ perimeter of SC(i)
24.	if $ratio\le 0.15$ $Psc\ge 10$ then
25.	Discard $SC\left(i\right)$
26.	else
27.	Find contours from the grass layer
28.	for $j\leftarrow 0,m$ do           ▷ $m=$ number of detected grass contours
29.	Select $GC\left(j\right)$             ▷ $GC\left(j\right)=$ grass contour at j index
30.	$Pgc\leftarrow$ perimeter of $GC\left(j\right)$
31.	$d\leftarrow$ distance between $GC\left(j\right)$ and $SC\left(i\right)$ centroids
32.	$rad\leftarrow$ radius of $SC\left(i\right)$
33.	$Prop\leftarrow Pgc/Psc$
34.	if $d=1.2*rad$ ($Pgc\ge Psc$ || $Prop0.8$) then
35.	$ILD\leftarrow$ Minimum intersection line distance between $SC\left(i\right)$ and $GC\left(j\right)$
36.	if $ILD=2.5$ then
37.	Draw contours at ROI image
38.	end if
39.	end if
40.	end for
41.	end if
42.	end for
43.	return ROI Image