colour.ILLUMINANTS

colour.ILLUMINANTS = CaseInsensitiveMapping({'CIE 1931 2 Degree Standard Observer': ..., 'CIE 1964 10 Degree Standard Observer': ..., 'cie_2_1931': ..., 'cie_10_1964': ...})

Aggregated CIE illuminants chromaticity coordinates.

Notes

CIE Illuminant D Series D60 illuminant chromaticity coordinates were computed as follows:

CCT = 6000 * 1.4388 / 1.438
xy = colour.temperature.CCT_to_xy_CIE_D(CCT)

sd = colour.sd_CIE_illuminant_D_series(xy)
sd.interpolator = colour.LinearInterpolator
colour.XYZ_to_xy(
    colour.sd_to_XYZ(
        sd, colour.CMFS['CIE 1964 10 Degree Standard Observer']) / 100.0)

CIE Illuminant D Series D50 illuminant and CIE Standard Illuminant D Series D65 chromaticity coordinates are rounded to 4 decimals as given in the typical RGB colourspaces litterature. Their chromaticity coordinates as given in [CIET14804d] are (0.34567, 0.35851) and (0.31272, 0.32903) respectively.

References

[CIET14804d], [DigitalCInitiatives07], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommittee14c], [Wik06b]

ILLUMINANTS : CaseInsensitiveMapping

{‘CIE 1931 2 Degree Standard Observer’, ‘CIE 1964 10 Degree Standard Observer’}

Aliases:

• ‘cie_2_1931’: ‘CIE 1931 2 Degree Standard Observer’
• ‘cie_10_1964’: ‘CIE 1964 10 Degree Standard Observer’