colour.temperature.xy_to_CCT_Hernandez1999¶
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colour.temperature.
xy_to_CCT_Hernandez1999
(xy)[source]¶ Returns the correlated colour temperature \(T_{cp}\) from given CIE XYZ tristimulus values xy chromaticity coordinates using Hernandez-Andres et al. (1999) method.
Parameters: xy (array_like) – xy chromaticity coordinates. Returns: Correlated colour temperature \(T_{cp}\). Return type: numeric References
Examples
>>> xy = np.array([0.31270, 0.32900]) >>> xy_to_CCT_Hernandez1999(xy) # doctest: +ELLIPSIS 6500.7420431...