colour.colour_rendering_index¶
- colour.colour_rendering_index(sd_test: SpectralDistribution, additional_data: Boolean = False) Union[Floating, ColourRendering_Specification_CRI] [source]¶
Return the Colour Rendering Index (CRI) \(Q_a\) of given spectral distribution.
- Parameters
sd_test (SpectralDistribution) – Test spectral distribution.
additional_data (Boolean) – Whether to output additional data.
- Returns
Colour Rendering Index (CRI).
- Return type
numpy.floating
orcolour.quality.ColourRendering_Specification_CRI
References
[OD08]
Examples
>>> from colour import SDS_ILLUMINANTS >>> sd = SDS_ILLUMINANTS['FL2'] >>> colour_rendering_index(sd) 64.2337241...