Fig. 5

Mary Cassatt, Little Girl in a Blue Armchair (c.1878). Collection of Mr. and Mrs. Paul Mellon, National Gallery of Art, Washington, DC. (Top) Color image, (Middle) IRR 1100–1400 nm, (Bottom) False–color IRR (B 1100–1400 nm, G 1500–1800 nm, R 2100–2400 nm)