colour.is_within_macadam_limits#

colour.is_within_macadam_limits(xyY: ArrayLike, illuminant: Union[Literal['A', 'C', 'D65'], str] = 'D65', tolerance: Optional[Floating] = None) NDArray[source]#

Return whether given CIE xyY colourspace array is within MacAdam limits of given illuminant.

Parameters
  • xyY (ArrayLike) – CIE xyY colourspace array.

  • illuminant (Union[Literal[('A', 'C', 'D65')], str]) – Illuminant name.

  • tolerance (Optional[Floating]) – Tolerance allowed in the inside-triangle check.

Returns

Whether given CIE xyY colourspace array is within MacAdam limits.

Return type

numpy.ndarray

Notes

Domain

Scale - Reference

Scale - 1

xyY

[0, 1]

[0, 1]

Examples

>>> is_within_macadam_limits(np.array([0.3205, 0.4131, 0.51]), 'A')
array(True, dtype=bool)
>>> a = np.array([[0.3205, 0.4131, 0.51],
...               [0.0005, 0.0031, 0.001]])
>>> is_within_macadam_limits(a, 'A')
array([ True, False], dtype=bool)