Navel Orange Maturity Classification by Multispectral Indexes Based on Hyperspectral Diffuse Transmittance Imaging

Table 1

Some physical parameters of navel oranges at three different maturity stages.

	Classes	Number	Weight (g)	Height (mm)	Perimeter (mm)	SSC (°Brix)
			Mean ± SD	Mean ± SD	Mean ± SD	Mean ± SD
Calibration	Immature	30	120.7 ± 16.80	55.6 ± 3.37	63.0 ± 3.65	12.8 ± 1.89
	Midmature	35	115.2 ± 14.95	53.9 ± 3.17	62.7 ± 3.49	14.4 ± 1.42
	Mature	35	115.6 ± 14.07	53.3 ± 3.88	63.6 ± 3.13	14.9 ± 1.26
Prediction	Immature	16	121.9 ± 17.2	56.2 ± 3.28	63.8 ± 3.26	12.7 ± 1.86
	Midmature	17	116.5 ± 13.6	53.8 ± 2.28	63.6 ± 3.47	14.0 ± 1.51
	Mature	17	120.4 ± 17.4	54.3 ± 2.98	64.4 ± 3.42	15.1 ± 0.85