单词	chromaticity
释义	chromaticity /ˌkrəʊməˈtɪsɪti / noun [mass noun] The quality of colour, independent of brightness.A previous study of pied flycatchers Ficedula hypoleuca showed that the chromaticity of the characteristic blue eggs of this species was associated with male provisioning rate to resulting nestlings.... As a result, the stability of the luminance and the chromaticity can be preserved against age deterioration. If you look at an instrument's data sheet, you will see uncertainty values on the order of 0.002 in chromaticity (x, y) and 2% in luminance.
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