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Heritage Science
Fig. 3 | Heritage Science

Fig. 3

From: Integrated X-ray fluorescence and diffuse visible-to-near-infrared reflectance scanner for standoff elemental and molecular spectroscopic imaging of paints and works on paper

Fig. 3

(Left) color image of Andrea del Sarto’s Charity, Samuel H. Kress collection, National Gallery of Art, Washington D.C. Photo Mr. G. Williams, (middle) Copper (Cu Kα) map, (right) inverted natural log of Iron Kα map. Dark areas denote where iron was found. Note in the Cu Kα map the head of a man can be seen in reserve (red arrow), in the area of the chest and chin of the boy in the middle of the painting

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