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The Canonical Biplot method is used to determine the magnitude of the effects on the Δ chromatic coordinates (ΔL*, Δa*, Δb*) and the parameter ΔE*, where (ΔL*, Δa*, Δb*) are the difference in the values of the sample after each aging cycle and the value of the untreated sample and ΔE* = [(ΔL*)2 + (Δa*)2 + (Δb*)2]1/2. We performed a study of the changes in color produced by two types of artificial...
The major obstacle in identifying traditional Thai colors used in mural paintings is that most exist today only as names in old textbooks. The textbooks mention the name of each color without giving quantitative information about it. Mural paintings in Thailand have never been restored by matching the original colors, and, therefore, it is impossible to gather colorimetric data from any mural painting...
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