Fig. 10: Correlated element imaging with color photograph of a loose cartonnage fragment painted with EB. | npj Heritage Science

Fig. 10: Correlated element imaging with color photograph of a loose cartonnage fragment painted with EB.

From: Assessment of process variability and color in synthesized and ancient Egyptian blue pigments

Fig. 10

a Composite SEM-EDS X-ray image comprised of Ca (red), Cu (green), Si (blue), and S (orange) pixels. Higher resolution subregions i and ii are highlighted in white rectangles and shown below. b RGB image showing the location of color measurements for two × 200 µm spot line traces (unfilled white dashed circles), and 50 µm measurement spot sizes (thick unfilled white circles).

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