colour.colorimetry.whiteness_Taube1960¶
-
colour.colorimetry.
whiteness_Taube1960
(XYZ, XYZ_0)[source]¶ Returns the whiteness index \(WI\) of given sample CIE XYZ tristimulus values using Taube (1960) method.
- Parameters
XYZ (array_like) – CIE XYZ tristimulus values of sample.
XYZ_0 (array_like) – CIE XYZ tristimulus values of reference white.
- Returns
Whiteness \(WI\).
- Return type
numeric or ndarray
Notes
Domain
Scale - Reference
Scale - 1
XYZ
[0, 100]
[0, 1]
XYZ_0
[0, 100]
[0, 1]
Range
Scale - Reference
Scale - 1
WI
[0, 100]
[0, 1]
Whiteness \(WI\) values larger than 100 indicate a bluish white and values smaller than 100 indicate a yellowish white.
References
Examples
>>> import numpy as np >>> XYZ = np.array([95.00000000, 100.00000000, 105.00000000]) >>> XYZ_0 = np.array([94.80966767, 100.00000000, 107.30513595]) >>> whiteness_Taube1960(XYZ, XYZ_0) 91.4071738...