colour.temperature.xy_to_CCT_McCamy1992

colour.temperature.xy_to_CCT_McCamy1992(xy)[source]

Returns the correlated colour temperature \(T_{cp}\) from given CIE xy chromaticity coordinates using McCamy (1992) method.

Parameters:xy (array_like) – CIE xy chromaticity coordinates.
Returns:Correlated colour temperature \(T_{cp}\).
Return type:numeric or ndarray

References

[Wikipedia2001]

Examples

>>> import numpy as np
>>> xy = np.array([0.31270, 0.32900])
>>> xy_to_CCT_McCamy1992(xy)  # doctest: +ELLIPSIS
6505.0805913...