colour.XYZ_to_UCS

colour.XYZ_to_UCS(XYZ)

Converts from CIE XYZ tristimulus values to CIE UCS colourspace.

Parameters:XYZ (array_like) – CIE XYZ tristimulus values. Returns:CIE UCS colourspace array. Return type:ndarray

Notes

• Input CIE XYZ tristimulus values are in domain [0, 1].
• Output CIE UCS colourspace array is in range [0, 1].

References

• [Wikv]
• [Wikd]

Examples

>>> import numpy as np
>>> XYZ = np.array([0.07049534, 0.10080000, 0.09558313])
>>> XYZ_to_UCS(XYZ)  
array([ 0.0469968...,  0.1008    ,  0.1637439...])