colour.cctf_encoding¶
-
colour.
cctf_encoding
(value, function='sRGB', **kwargs)[source]¶ Encodes linear \(RGB\) values to non linear \(R'G'B'\) values using given encoding colour component transfer function (Encoding CCTF).
- Parameters
value (numeric or array_like) – Linear \(RGB\) values.
function (unicode, optional) – {
colour.CCTF_ENCODINGS
}, Computation function.
- Other Parameters
**kwargs (dict, optional) – Keywords arguments for the relevant encoding CCTF of the
colour.CCTF_ENCODINGS
attribute collection.
Warning
For ITU-R BT.2100, only the inverse electro-optical transfer functions (EOTFs / EOCFs) are exposed by this definition, please refer to the
colour.oetf()
definition for the opto-electronic transfer functions (OETF / OECF).- Returns
Non linear \(R'G'B'\) values.
- Return type
numeric or ndarray
Examples
>>> cctf_encoding(0.18, function='PLog', log_reference=400) ... 0.3910068... >>> cctf_encoding(0.18, function='ST 2084', L_p=1000) ... 0.1820115... >>> cctf_encoding( ... 0.11699185725296059, function='ITU-R BT.1886') 0.4090077...