This paper present the classification of fresh aromatic coconuts into 3 types: single layer, double layer and one
and a half layer by inspecting colors at the bottom of coconuts. We take the photos the bottom of coconuts in
RGB mode, change the colors into the HSV mode, and then place 4 circles into the image. The 20 photos of
each type are used to generate the relation of the rings for each type by using polynomial regression. Finally,
we use the polynomial equations to test new 100 fresh aromatic coconuts, the result is 11.76% errors for
single layer, 18.6% for one and a half layer and 18.18% error for double layers.
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