colour.models.log_decoding_ACEScct

colour.models.log_decoding_ACEScct(ACEScct: Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1], constants: Structure | None = None) → Annotated[ndarray[tuple[Any, ...], dtype[float16 | float32 | float64]], 1]

Apply the ACEScct log decoding inverse opto-electronic transfer function (OETF).

Parameters:

• ACEScct (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) – ACEScct non-linear encoded value.

• constants (Structure | None) – ACEScct constants.

Returns:

Linear AP1 colourspace value.

Return type:

numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
ACEScct	1	1

Range	Scale - Reference	Scale - 1
lin_AP1	1	1

References

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

Examples

>>> log_decoding_ACEScct(0.413588402492442)
np.float64(0.1799999...)