Fig. 5
From: Fading into the background: the dark space surrounding Vermeer’s Girl with a Pearl Earring
Mapping of the Girl: diagonal line in the upper right marked with a red arrow. a Polarised light photograph: René Gerritsen Art & Research Photography. b Infrared image (900–1100 nm): René Gerritsen Art & Research Photography. c MS-OCT glaze + varnish layer thickness map for the background of the painting. Glazes in the figure could not be detected. d MA-XRF map: lead (Pb-M). e MA–XRF map: copper (Cu–K). f MA-XRF map: potassium (K–K). g MA-XRF map: calcium (Ca–K). h Detail of the top right corner of a. i Detail of the top right corner of d, with contrast heightened