colour.temperature.CCT_to_uv_Ohno2013#

colour.temperature.CCT_to_uv_Ohno2013(CCT_D_uv: ArrayLike, cmfs: Optional[MultiSpectralDistributions] = None) ndarray[source]#

Return the CIE UCS colourspace uv chromaticity coordinates from given correlated colour temperature \(T_{cp}\), \(\Delta_{uv}\) and colour matching functions using Ohno (2013) method.

Parameters:
  • CCT_D_uv (ArrayLike) – Correlated colour temperature \(T_{cp}\), \(\Delta_{uv}\).

  • cmfs (Optional[MultiSpectralDistributions]) – Standard observer colour matching functions, default to the CIE 1931 2 Degree Standard Observer.

Returns:

CIE UCS colourspace uv chromaticity coordinates.

Return type:

numpy.ndarray

References

[Ohn14]

Examples

>>> from pprint import pprint
>>> from colour import MSDS_CMFS, SPECTRAL_SHAPE_DEFAULT
>>> cmfs = (
...     MSDS_CMFS['CIE 1931 2 Degree Standard Observer'].
...     copy().align(SPECTRAL_SHAPE_DEFAULT)
... )
>>> CCT_D_uv = np.array([6507.4342201047066, 0.003223690901513])
>>> CCT_to_uv_Ohno2013(CCT_D_uv, cmfs)  
array([ 0.1977999...,  0.3122004...])