Identification of Damage in Pear Using Hyperspectral Imaging Technology

Table 4

Discriminant results of SVM based on the characteristic wavelengths of R, A, and K-M spectra.

Spectra	Pretreatment	Wavelength selection	Number of characteristic wavelengths	Discriminant accuracy (%)
				Test set	Calibration set
R	RAW	CARS	10	84.38	81.81
	GF		10	85.94	83.33
	COW		16	93.75	92.19
	RAW	UVE	21	96.88	95.83
	GF		58	95.31	100
	COW		111	95.31	93.75
A	RAW	CARS	75	96.88	100
	GF		85	93.75	97.4
	COW		6	82.81	90.63
	RAW	UVE	98	90.63	97.4
	GF		97	89.06	91.67
	COW		71	92.19	99.48
K-M	RAW	CARS	15	87.5	91.67
	GF		43	93.75	96.88
	COW		33	78.13	86.46
	RAW	UVE	111	93.75	94.79
	GF		103	95.31	94.27
	COW		60	93.75	94.27