colour.models.oetf_inverse_HLG_BT2100¶
- colour.models.oetf_inverse_HLG_BT2100(E_p: FloatingOrArrayLike, constants: colour.utilities.data_structures.Structure = CONSTANTS_BT2100_HLG) FloatingOrNDArray[source]¶
Define Recommendation ITU-R BT.2100 Reference HLG inverse opto-electrical transfer function (OETF).
- Parameters
E_p (FloatingOrArrayLike) – \(E'\) is the resulting non-linear signal \({R', G', B'}\).
constants (colour.utilities.data_structures.Structure) – Recommendation ITU-R BT.2100 Reference HLG constants.
- Returns
\(E\) is the signal for each colour component \({R_S, G_S, B_S}\) proportional to scene linear light and scaled by camera exposure.
- Return type
Notes
Domain
Scale - Reference
Scale - 1
E_p[0, 1]
[0, 1]
Range
Scale - Reference
Scale - 1
E[0, 1]
[0, 1]
References
[Bor17], [InternationalTUnion17]
Examples
>>> oetf_inverse_HLG_BT2100(0.212132034355964) 0.0149999...