colour.oetf_inverse¶
-
colour.
oetf_inverse
(value, function='ITU-R BT.709', **kwargs)[source]¶ Decodes \(R'G'B'\) video component signal value to tristimulus values at the display using given inverse opto-electronic transfer function (OETF / OECF).
- Parameters
value (numeric or array_like) – Value.
function (unicode, optional) – {‘ITU-R BT.709’, ‘ARIB STD-B67’, ‘ITU-R BT.2100 HLD’, ‘ITU-R BT.2100 PQ’, ‘ITU-R BT.601’, }, Inverse opto-electronic transfer function (OETF / OECF).
- Other Parameters
r (numeric, optional) – {
colour.models.oetf_ARIBSTDB67()
}, Video level corresponding to reference white level.- Returns
Tristimulus values at the display.
- Return type
numeric or ndarray
Examples
>>> oetf_inverse(0.409007728864150) 0.1... >>> oetf_inverse( ... 0.409007728864150, function='ITU-R BT.601') 0.1...