colour.models.oetf_BT601¶

colour.models.oetf_BT601(L)[source]¶

Defines Recommendation ITU-R BT.601-7 opto-electronic transfer function (OETF / OECF).

Parameters:	L (numeric or array_like) – Luminance \(L\) of the image.
Returns:	Corresponding electrical signal \(Es\).
Return type:	numeric or ndarray

References

Examples

>>> oetf_BT601(0.18)  
0.4090077...