Rapid prediction of moisture content of dehydrated prawns using online hyperspectral imaging system

► Hyperspectral imaging as moisture content predictors of prawn. ► Prawns were extracted from background using spatial features of hyperspectral imaging. ► Moisture contents were determined using spectral features of hyperspectral imaging. ► SPA was first used for wavelength selection in hyperspectral imaging analysis. ► Moisture content distributions were visualized at different dehydration periods.