colour.XYZ_to_xyY¶
-
colour.
XYZ_to_xyY
(XYZ, illuminant=array([ 0.3127, 0.329 ]))[source]¶ Converts from CIE XYZ tristimulus values to CIE xyY colourspace and reference illuminant.
- Parameters
XYZ (array_like) – CIE XYZ tristimulus values.
illuminant (array_like, optional) – Reference illuminant chromaticity coordinates.
- Returns
CIE xyY colourspace array.
- Return type
ndarray
Notes
Domain
Scale - Reference
Scale - 1
XYZ
[0, 1]
[0, 1]
Range
Scale - Reference
Scale - 1
xyY
[0, 1]
[0, 1]
References
Examples
>>> XYZ = np.array([0.20654008, 0.12197225, 0.05136952]) >>> XYZ_to_xyY(XYZ) array([ 0.5436955..., 0.3210794..., 0.1219722...])