colour.xyY_to_XYZ

colour.xyY_to_XYZ(xyY: ArrayLike) → NDArrayFloat

Convert from CIE xyY colourspace to CIE XYZ tristimulus values.

Parameters:

xyY (ArrayLike) – CIE xyY colourspace array.

Returns:

CIE XYZ tristimulus values.

Return type:

numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
xyY	[0, 1]	[0, 1]

Range	Scale - Reference	Scale - 1
XYZ	[0, 1]	[0, 1]

References

[CIET14804f], [Wikipedia05d]

Examples

>>> xyY = np.array([0.54369557, 0.32107944, 0.12197225])
>>> xyY_to_XYZ(xyY)  
array([ 0.2065400...,  0.1219722...,  0.0513695...])