colour.xyY_to_xy

colour.xyY_to_xy(xyY: Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) → NDArrayFloat

Convert from CIE xyY colourspace to CIE xy chromaticity coordinates.

xyY argument with last dimension being equal to 2 will be assumed to be a CIE xy chromaticity coordinates argument and will be returned directly by the definition.

Parameters:

xyY (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) – CIE xyY colourspace array or CIE xy chromaticity coordinates.

Returns:

CIE xy chromaticity coordinates.

Return type:

numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
xyY	1	1

References

[CIET14804f], [Wikipedia05d]

Examples

>>> xyY = np.array([0.54369557, 0.32107944, 0.12197225])
>>> xyY_to_xy(xyY)
array([ 0.54369557...,  0.32107944...])
>>> xy = np.array([0.54369557, 0.32107944])
>>> xyY_to_xy(xy)
array([ 0.54369557...,  0.32107944...])