Fig. 2From: Utilization of computer vision and multispectral imaging techniques for classification of cowpea (Vigna unguiculata) seedsa Main reflectance signatures of non-aged (control) and aged seeds for different periods of artificial accelerated ageing (24, 48, 72 and 96 h), b PCA score plot of the raw spectral data of all cowpea seeds showing differentiation between aged and non-aged seeds, c main reflectance signatures of germinated and non-germinated seeds despite artificial accelerated ageing implementedBack to article page