Table 3.

Classification accuracy when identifying organic vs non-organic fruit.

Fruit Type	Number of Classes	Number of Samples	Visible	NIR 1	NIR 2	Composite
(Organic/Inorganic)			(0–700 nm)	(700–1100 nm)	(1100–2000 nm)	(0–2000 nm)
Gala Apples	2	3358	0.966	0.874	0.988	0.982
Red Delicious Apples	2	1095	0.988	0.938	0.975	0.984
Naval Oranges	2	423	0.97	0.956	0.971	0.968
Green Onions	2	316	0.904	0.99	0.979	0.989
Green Bell Peppers	2	119	0.919	0.969	0.906	0.99