colour.XYZ_to_xy¶
-
colour.
XYZ_to_xy
(XYZ, illuminant=array([ 0.3127, 0.329 ]))[source]¶ Returns the CIE xy chromaticity coordinates from given CIE XYZ tristimulus values.
- Parameters
XYZ (array_like) – CIE XYZ tristimulus values.
illuminant (array_like, optional) – Reference illuminant chromaticity coordinates.
- Returns
CIE xy chromaticity coordinates.
- Return type
ndarray
Notes
Domain
Scale - Reference
Scale - 1
XYZ
[0, 1]
[0, 1]
References
Examples
>>> XYZ = np.array([0.20654008, 0.12197225, 0.05136952]) >>> XYZ_to_xy(XYZ) array([ 0.5436955..., 0.3210794...])