colour.models.oetf_inverse_BT601

colour.models.oetf_inverse_BT601(E)[source]

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

Parameters

E (numeric or array_like) – Electrical signal \(E\).

Returns

Corresponding luminance \(L\) of the image.

Return type

numeric or ndarray

Notes

Domain

Scale - Reference

Scale - 1

E

[0, 1]

[0, 1]

Range

Scale - Reference

Scale - 1

L

[0, 1]

[0, 1]

References

[InternationalTUnion11b]

Examples

>>> oetf_inverse_BT601(0.409007728864150)  
0.1...