Fig. 8
From: Mapping the pigment distribution of Vermeer’s Girl with a Pearl Earring
a Visible light photograph. René Gerritsen Art & Research Photography; b False-colour reflectance image (RGB: 608, 504, 450 nm) showing values from 0 to 3% apparent reflectance. The region of the figure was masked; c average reflectance spectra from five regions of interest shown in b; d NIR reflectance image averaged from 725 to 925 nm; e image showing difference in reflectance between two NIR spectral regions: 1600–1680 nm and 1000–1200 nm; f MA-XRF map of lead (Pb M) (thresholded to emphasise the background)