colour.xy_to_CCT¶
- colour.xy_to_CCT(xy: ArrayLike, method: Union[Literal['CIE Illuminant D Series', 'Kang 2002', 'Hernandez 1999', 'McCamy 1992'], str] = 'CIE Illuminant D Series') FloatingOrNDArray[source]¶
Return the correlated colour temperature \(T_{cp}\) from given CIE xy chromaticity coordinates using given method.
- Parameters
xy (ArrayLike) – CIE xy chromaticity coordinates.
method (Union[Literal['CIE Illuminant D Series', 'Kang 2002', 'Hernandez 1999', 'McCamy 1992'], str]) – Computation method.
optimisation_kwargs – {
colour.temperature.xy_to_CCT_CIE_D(),colour.temperature.xy_to_CCT_Kang2002()}, Parameters forscipy.optimize.minimize()definition.
- Returns
Correlated colour temperature \(T_{cp}\).
- Return type
References
[HernandezAndresLR99], [KMH+02], [Wikipedia01a], [Wikipedia01b], [WS00d]
Examples
>>> import numpy as np >>> xy_to_CCT(np.array([0.31270, 0.32900])) 6508.1175148... >>> xy_to_CCT(np.array([0.31270, 0.32900]), 'Hernandez 1999') ... 6500.7420431...