Fig. 15: Multispectral colorimetry results coupled to micro-profilometry for iron oxide model system. | npj Heritage Science

Fig. 15: Multispectral colorimetry results coupled to micro-profilometry for iron oxide model system.

From: How to approach long-term monitoring of chemical dynamics in oil paintings?

Fig. 15

a Micro-profilometry height map with flat areas A, B and C and unstable areas 1–5 indicated. b Line profiles corresponding to the white dashed line in (a). Protrusions 4 and 5 are indicated. c Average ΔE values (CIE 1976) are calculated for the entire surface area of the sample. d Average ΔE values for flat areas e Average ΔE values for unstable protrusions.

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