colour.models.oetf_inverse_BT709

colour.models.oetf_inverse_BT709(V: ArrayLike) → Annotated[ndarray[tuple[Any, ...], dtype[float16 | float32 | float64]], 1]

Apply the Recommendation ITU-R BT.709-6 inverse opto-electronic transfer function (OETF).

Parameters:

V (ArrayLike) – Electrical signal \(V\).

Returns:

Luminance \(L\) of the image.

Return type:

numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
V	1	1

Range	Scale - Reference	Scale - 1
L	1	1

References

[InternationalTUnion15b]

Examples

>>> oetf_inverse_BT709(0.409007728864150)
0.1...