colour.temperature.uv_to_CCT_Krystek1985#
- colour.temperature.uv_to_CCT_Krystek1985(uv: ArrayLike, optimisation_kwargs: Optional[Dict] = None) FloatingOrNDArray[source]#
Return the correlated colour temperature \(T_{cp}\) from given CIE UCS colourspace uv chromaticity coordinates using Krystek (1985) method.
- Parameters
- Returns
Correlated colour temperature \(T_{cp}\).
- Return type
Warning
Krystek (1985) does not give an analytical inverse transformation to compute the correlated colour temperature \(T_{cp}\) from given CIE UCS colourspace uv chromaticity coordinates, the current implementation relies on optimization using
scipy.optimize.minimize()definition and thus has reduced precision and poor performance.Notes
Krystek (1985) method computations are valid for correlated colour temperature \(T_{cp}\) normalised to domain [1000, 15000].
References
[Kry85]
Examples
>>> uv_to_CCT_Krystek1985(np.array([0.20047203, 0.31029290])) ... 6504.3894290...