colour.temperature.xy_to_CCT_Kang2002¶
-
colour.temperature.xy_to_CCT_Kang2002(xy, optimisation_parameters=None)[source]¶ Returns the correlated colour temperature \(T_{cp}\) from given CIE xy chromaticity coordinates using Kang et al. (2002) method.
- Parameters
xy (array_like) – CIE xy chromaticity coordinates.
optimisation_parameters (dict_like, optional) – Parameters for
scipy.optimize.minimize()definition.
- Returns
Correlated colour temperature \(T_{cp}\).
- Return type
ndarray
Warning
Kang et al. (2002) does not give an analytical inverse transformation to compute the correlated colour temperature \(T_{cp}\) from given CIE xy chromaticity coordinates, the current implementation relies on optimization using
scipy.optimize.minimize()definition and thus has reduced precision and poor performance.References
Examples
>>> xy_to_CCT_Kang2002(np.array([0.31342600, 0.32359597])) ... 6504.3893128...