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This study investigated the feasibility of using hyperspectral imaging for determining banana color (L∗, a∗ and b∗) and firmness as well as classifying ripe and unripe samples. The hyperspectral images at wavelengths 380–1023nm were acquired. Partial least squares (PLS) models were built to predict color and firmness. Two-wavelength combination method λi-λjλi+λj,λi2-λj2λi2+λj2,λiλjandλi-λj was used...
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