colour.is_within_macadam_limits#

colour.is_within_macadam_limits(xyY: ArrayLike, illuminant: Union[Literal['A', 'C', 'D65'], str] = 'D65', tolerance: Optional[float] = 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[float]) – 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)