- Remote spectral imaging with simultaneous extraction of 3D topography for historical wall paintings

(a) Mock wall painting tile with colour patches of the most common paint found in Mogao caves from left to right: azurite, vermilion, malachite, red ochre and red lead in animal glue. (b–f) PRISMS measured spectra from a distance of 8m at 0° (black dot), 30° (red dot), 45° (green dot) and 60° (blue cross) compared with spectrometer measured spectra at 45°/45° (blue curve) for azurite (b), vermilion (c), malachite (d), red ochre (e), red lead (f). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

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Reference

Remote spectral imaging with simultaneous extraction of 3D topography for historical wall paintings - Scientific Figure on ResearchGate. Available from: https://www.researchgate.net/figure/a-Mock-wall-painting-tile-with-colour-patches-of-the-most-common-paint-found-in-Mogao_fig1_263856882 [accessed 22 Jun 2025]

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(a) Mock wall painting tile with colour patches of the most common paint found in Mogao caves from left to right: azurite, vermilion, malachite, red ochre and red lead in animal glue. (b–f) PRISMS measured spectra from a distance of 8m at 0° (black dot), 30° (red dot), 45° (green dot) and 60° (blue cross) compared with spectrometer measured spectra at 45°/45° (blue curve) for azurite (b), vermilion (c), malachite (d), red ochre (e), red lead (f). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)

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<a href="https://www.researchgate.net/figure/a-Mock-wall-painting-tile-with-colour-patches-of-the-most-common-paint-found-in-Mogao_fig1_263856882"><img src="https://www.researchgate.net/publication/263856882/figure/fig1/AS:269888866484231@1441357928189/a-Mock-wall-painting-tile-with-colour-patches-of-the-most-common-paint-found-in-Mogao.png" alt="(a) Mock wall painting tile with colour patches of the most common paint found in Mogao caves from left to right: azurite, vermilion, malachite, red ochre and red lead in animal glue. (b–f) PRISMS measured spectra from a distance of 8m at 0° (black dot), 30° (red dot), 45° (green dot) and 60° (blue cross) compared with spectrometer measured spectra at 45°/45° (blue curve) for azurite (b), vermilion (c), malachite (d), red ochre (e), red lead (f). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)"/></a>