colour.eotf_inverse

colour.eotf_inverse(value, function='ITU-R BT.1886', **kwargs)[source]

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

Parameters:
  • value (numeric or array_like) – Value.
  • function (unicode, optional) – {‘ITU-R BT.1886’, ‘DCDM’, ‘DICOM GSDF’, ‘ITU-R BT.2100 HLG’, ‘ITU-R BT.2100 PQ’, ‘ST 2084’, ‘sRGB’}, Inverse electro-optical transfer function (EOTF / EOCF).
Other Parameters:
 
Returns:

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

Return type:

numeric or ndarray

Examples

>>> eotf_inverse(0.11699185725296059)  # doctest: +ELLIPSIS
0.4090077...
>>> eotf_inverse(  # doctest: +ELLIPSIS
...     0.11699185725296059, function='ITU-R BT.1886')
0.4090077...