Pigment degradation in oil paint induced by indoor climate:comparison of visual and computational backscattered electron images
作者： Katrien Keune , Rick P. Kramer , Zara Huijbregts , Henk L. Schellen , Marc H.L. Stappers
DOI: 10.1017/S1431927616000076
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摘要: For the first time degradation of lead white pigment in mature oil paint has been used as an internal marker for degree saponification and hence chemical paint. Computational image analysis backscattered electron images quantified intact versus nonpigmented lead-rich areas (degraded white) layers. This new methodology was applied to a series samples taken from four painted wall hangings (dated 1778), which makes it possible study influence indoor climate on aged paintings. The visual interpretation computational revealed clear trends. highest room found north close windows, whereas diminished further away window. Lead south less degraded, but showed similar trend paintings wall. These results imply strong relationship between location room.
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