colour.models.log_encoding_ERIMMRGB#
- colour.models.log_encoding_ERIMMRGB(X: FloatingOrArrayLike, bit_depth: int = 8, out_int: bool = False, E_min: float = 0.001, E_clip: float = 316.2) FloatingOrNDArray | IntegerOrNDArray [source]#
Define the ERIMM RGB log encoding curve / opto-electronic transfer function (OETF).
- Parameters:
X (FloatingOrArrayLike) – Linear data \(X_{ERIMM}\).
bit_depth (int) – Bit depth used for conversion.
out_int (bool) – Whether to return value as integer code value or float equivalent of a code value at a given bit depth.
E_min (float) – Minimum exposure limit.
E_clip (float) – Maximum exposure limit.
- Returns:
Non-linear data \(X'_{ERIMM}\).
- Return type:
Notes
Domain *
Scale - Reference
Scale - 1
X
[0, 1]
[0, 1]
Range *
Scale - Reference
Scale - 1
X_p
[0, 1]
[0, 1]
* This definition has an output integer switch, thus the domain-range scale information is only given for the floating point mode.
References
[SWG00]
Examples
>>> log_encoding_ERIMMRGB(0.18) 0.4100523... >>> log_encoding_ERIMMRGB(0.18, out_int=True) 105