colour.encoding_cctf¶
-
colour.
encoding_cctf
(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.ENCODING_CCTFS
}, Computation function.
Other Parameters: **kwargs (dict, optional) – Keywords arguments for the relevant encoding CCTF of the
colour.ENCODING_CCTFS
attribute collection.Warning
For ITU-R BT.2100, only the reverse 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
>>> encoding_cctf(0.18, function='PLog', log_reference=400) ... # doctest: +ELLIPSIS 0.3910068... >>> encoding_cctf(0.18, function='ST 2084', L_p=1000) ... # doctest: +ELLIPSIS 0.1820115... >>> encoding_cctf( # doctest: +ELLIPSIS ... 0.11699185725296059, function='ITU-R BT.1886') 0.4090077...