Fig. 4From: XRF and reflectance hyperspectral imaging on a 15th century illuminated manuscript: combining imaging and quantitative analysis to understand the artist’s techniqueDifferent hues on the red fruit. On the left: hyperspectral image, on the right: reflectance spectra of a the mantle of Petrarch (brazil wood), b the red of the fruit (vermilion), c gold on the fruit, d shadow on the fruit. It is important to note that red the fruit is 5 mm in diameterBack to article page