colour.models.log_encoding_ALEXALogC¶
- colour.models.log_encoding_ALEXALogC(x, firmware='SUP 3.x', method='Linear Scene Exposure Factor', EI=800)[source]¶
Defines the ARRI ALEXA Log C log encoding curve / opto-electronic transfer function.
- Parameters
x (numeric or array_like) – Linear data \(x\).
firmware (unicode, optional) – {‘SUP 3.x’, ‘SUP 2.x’}, Alexa firmware version.
method (unicode, optional) – {‘Linear Scene Exposure Factor’, ‘Normalised Sensor Signal’}, Conversion method.
EI (int, optional) – Ei.
- Returns
ARRI ALEXA Log C encoded data \(t\).
- Return type
numeric or ndarray
References
[]
Notes
Domain
Scale - Reference
Scale - 1
x
[0, 1]
[0, 1]
Range
Scale - Reference
Scale - 1
t
[0, 1]
[0, 1]
Examples
>>> log_encoding_ALEXALogC(0.18) 0.3910068...