colour.characterisation.white_balance_multipliers¶

colour.characterisation.white_balance_multipliers(sensitivities: colour.characterisation.cameras.RGB_CameraSensitivities, illuminant: colour.colorimetry.spectrum.SpectralDistribution) → numpy.ndarray[source]¶

Compute the RGB white balance multipliers for given camera RGB spectral sensitivities and illuminant.

Parameters

sensitivities (colour.characterisation.cameras.RGB_CameraSensitivities) – Camera RGB spectral sensitivities.
illuminant (colour.colorimetry.spectrum.SpectralDistribution) – Illuminant spectral distribution.

Returns

RGB white balance multipliers.

Return type

numpy.ndarray

References

[DFI+17]

Examples

>>> path = os.path.join(
...     RESOURCES_DIRECTORY_RAWTOACES,
...     'CANON_EOS_5DMark_II_RGB_Sensitivities.csv')
>>> sensitivities = sds_and_msds_to_msds(
...     read_sds_from_csv_file(path).values())
>>> illuminant = SDS_ILLUMINANTS['D55']
>>> white_balance_multipliers(sensitivities, illuminant)
... 
array([ 2.3414154...,  1.        ,  1.5163375...])

colour.characterisation.generate_illuminants_rawtoaces_v1

colour.characterisation.normalise_illuminant