Figure 7 | A checkerboard-based technical validation confirms very good reproducibility and high validity of the HSI images. a, Reconstructed RGB image from a hyperspectral imaging (HSI) recording of a colorchecker board. b, Spectrometer (purple) and HSI (light and dark green) recordings for the 24 different color chips. The median spectrum across all available recordings (100 recordings for spectrometer, 13 recordings for HSI) is denoted by a solid line, the corresponding standard deviation as a shaded area.