colour.models.log_decoding_ACEScct#

colour.models.log_decoding_ACEScct(ACEScct: ArrayLike, constants: Structure = CONSTANTS_ACES_CCT) NDArrayFloat[source]#

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

Parameters:
  • ACEScct (ArrayLike) – ACEScct non-linear value.

  • constants (Structure) – ACEScct constants.

Returns:

lin_AP1 value.

Return type:

numpy.ndarray

References

[TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommittee14b], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommittee14c], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESProject16], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommitteea]

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)  
0.1799999...