colour.xy_to_CCT¶
-
colour.
xy_to_CCT
(xy, method='CIE Illuminant D Series')[source]¶ Returns the correlated colour temperature \(T_{cp}\) from given CIE xy chromaticity coordinates using given method.
- Parameters
xy (array_like) – CIE xy chromaticity coordinates.
method (unicode, optional) – {‘CIE Illuminant D Series’, ‘Kang 2002’, ‘Hernandez 1999’, ‘McCamy 1992’}, Computation method.
- Other Parameters
optimisation_parameters (dict_like, optional) – {
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
numeric or ndarray
References
[HernandezAndresLR99], [KMH+02], [Wik01a], [Wik01b], [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...