colour.models.oetf_BT2100_PQ

colour.models.oetf_BT2100_PQ(E: ArrayLike) → NDArrayFloat

Apply the Recommendation ITU-R BT.2100 Reference PQ opto-electronic transfer function (OETF).

Parameters:

E (ArrayLike) – \(E = \{R_S, G_S, B_S; Y_S; \text{or } I_S\}\) denotes the signal determined by scene light and scaled by camera exposure.

Returns:

\(E'\) denotes the non-linear signal \(\{R', G', B'\}\).

Return type:

numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
E	UN	UN

Range	Scale - Reference	Scale - 1
E_p	UN	UN

References

[Bor17], [InternationalTUnion17]

Examples

>>> oetf_BT2100_PQ(0.1)
0.7247698...