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 \(E\).
Return type:numeric or ndarray

Notes

Domain Scale - Reference Scale - 1
L [0, 1] [0, 1]
Range Scale - Reference Scale - 1
E [0, 1] [0, 1]

References

[InternationalTelecommunicationUnion2011f]

Examples

>>> oetf_BT601(0.18)  # doctest: +ELLIPSIS
0.4090077...