colour.eotf_inverse#

colour.eotf_inverse(value: _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | bool | int | float | complex | str | bytes | _NestedSequence[bool | int | float | complex | str | bytes], function: Literal['DCDM', 'DICOM GSDF', 'ITU-R BT.1886', 'ITU-R BT.2100 HLG', 'ITU-R BT.2100 PQ', 'ITU-T H.273 ST.428-1', 'ST 2084', 'sRGB'] | str = 'ITU-R BT.1886', **kwargs) ndarray[Any, dtype[float16 | float32 | float64]] | ndarray[Any, dtype[int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64]][source]#

Encode estimated tristimulus values in a scene to \(R'G'B'\) video component signal value using given inverse electro-optical transfer function (EOTF).

Parameters:
Returns:

\(R'G'B'\) video component signal value.

Return type:

numpy.ndarray

Examples

>>> eotf_inverse(0.11699185725296059)  
0.4090077...
>>> eotf_inverse(  
...     0.11699185725296059, function="ITU-R BT.1886"
... )
0.4090077...