colour.colour_fidelity_index#
- colour.colour_fidelity_index(sd_test: colour.colorimetry.spectrum.SpectralDistribution, additional_data=False, method: Union[Literal['CIE 2017', 'ANSI/IES TM-30-18'], str] = 'CIE 2017') float | colour.quality.cfi2017.ColourRendering_Specification_CIE2017 | colour.quality.tm3018.ColourQuality_Specification_ANSIIESTM3018 [source]#
Return the Colour Fidelity Index (CFI) \(R_f\) of given spectral distribution using given method.
- Parameters
sd_test (colour.colorimetry.spectrum.SpectralDistribution) – Test spectral distribution.
additional_data – Whether to output additional data.
method (Union[Literal['CIE 2017', 'ANSI/IES TM-30-18'], str]) – Computation method.
- Returns
Colour Fidelity Index (CFI) \(R_f\).
- Return type
float
orcolour.quality.ColourRendering_Specification_CIE2017
orcolour.quality.ColourQuality_Specification_ANSIIESTM3018
References
[CIET19017], [ANSIIESCCommittee18]
Examples
>>> from colour.colorimetry import SDS_ILLUMINANTS >>> sd = SDS_ILLUMINANTS["FL2"] >>> colour_fidelity_index(sd) 70.1208244...