colour.oetf_inverse¶
- colour.oetf_inverse(value: Union[float, numpy.typing._array_like._SupportsArray[numpy.dtype], numpy.typing._nested_sequence._NestedSequence[numpy.typing._array_like._SupportsArray[numpy.dtype]], bool, int, complex, str, bytes, numpy.typing._nested_sequence._NestedSequence[Union[bool, int, float, complex, str, bytes]]], function: Union[Literal['ARIB STD-B67', 'Blackmagic Film Generation 5', 'DaVinci Intermediate', 'ITU-R BT.2100 HLG', 'ITU-R BT.2100 PQ', 'ITU-R BT.601', 'ITU-R BT.709'], str] = 'ITU-R BT.709', **kwargs: Any) Union[float, numpy.ndarray] [source]¶
Decode \(R'G'B'\) video component signal value to tristimulus values at the display using given inverse opto-electronic transfer function (OETF).
- Parameters
value (Union[float, numpy.typing._array_like._SupportsArray[numpy.dtype], numpy.typing._nested_sequence._NestedSequence[numpy.typing._array_like._SupportsArray[numpy.dtype]], bool, int, complex, str, bytes, numpy.typing._nested_sequence._NestedSequence[Union[bool, int, float, complex, str, bytes]]]) – Value.
function (Union[Literal['ARIB STD-B67', 'Blackmagic Film Generation 5', 'DaVinci Intermediate', 'ITU-R BT.2100 HLG', 'ITU-R BT.2100 PQ', 'ITU-R BT.601', 'ITU-R BT.709'], str]) – Inverse opto-electronic transfer function (OETF).
kwargs (Any) – {
colour.models.oetf_inverse_ARIBSTDB67()
,colour.models.oetf_inverse_BlackmagicFilmGeneration5()
,colour.models.oetf_inverse_DaVinciIntermediate()
,colour.models.oetf_inverse_HLG_BT2100()
,colour.models.oetf_inverse_PQ_BT2100()
,colour.models.oetf_inverse_BT601()
,colour.models.oetf_inverse_BT709()
}, See the documentation of the previously listed definitions.
- Returns
Tristimulus values at the display.
- Return type
Examples
>>> oetf_inverse(0.409007728864150) 0.1... >>> oetf_inverse( ... 0.409007728864150, function='ITU-R BT.601') 0.1...