Optical coherence tomography and spectral imaging of a wall painting
There are two reasons for determining the composition of paints used in historical paintings. The first is for conservation purposes, i.e., to identify which conservation methods should be used to best treat an artwork based on its paint composition. The second purpose is art history. For example, some pigments were used in certain periods, while others are more modern. Analysis of the pigments allows art historians to constrain the time when the painting was created, which assists with dating the artwork. Furthermore, pigments can be attributed to geographical areas and are used to shed light on historical pigment trade ...
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