colour.models.log_decoding_ACEScct¶

colour.models.log_decoding_ACEScct(ACEScct, constants={'A': 10.5402377416545, 'B': 0.0729055341958355, 'X_BRK': 0.0078125, 'Y_BRK': 0.155251141552511})[source]¶

Defines the ACEScct colourspace log decoding / electro-optical transfer function.

Parameters:	ACEScct (numeric or array_like) – ACEScct non-linear value. constants (Structure, optional) – ACEScct constants.
Returns:	lin_AP1 value.
Return type:	numeric or ndarray

References

[TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommittee14c], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommittee14d], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESProject16], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommittee]

Notes

Domain	Scale - Reference	Scale - 1
`ACEScct`	[0, 1]	[0, 1]

Range	Scale - Reference	Scale - 1
`lin_AP1`	[0, 1]	[0, 1]

Examples

>>> log_decoding_ACEScct(0.413588402492442)  # doctest: +ELLIPSIS
0.1799999...