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

[TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommittee14b], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommittee14c], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESProject16], [TheAoMPAaSciencesScienceaTCouncilAcademyCESACESPSubcommitteec]

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...