colour.colour_rendering_index¶
- colour.colour_rendering_index(sd_test, additional_data=False)[source]¶
Returns the Colour Rendering Index (CRI) \(Q_a\) of given spectral distribution.
- Parameters
sd_test (SpectralDistribution) – Test spectral distribution.
additional_data (bool, optional) – Whether to output additional data.
- Returns
Colour Rendering Index (CRI).
- Return type
numeric or ColourRendering_Specification_CRI
References
[]
Examples
>>> from colour import SDS_ILLUMINANTS >>> sd = SDS_ILLUMINANTS['FL2'] >>> colour_rendering_index(sd) 64.2337241...