colour.models.oetf_PQ_BT2100

colour.models.oetf_PQ_BT2100(E: FloatingOrArrayLike) → FloatingOrNDArray

Define Recommendation ITU-R BT.2100 Reference PQ opto-electrical transfer function (OETF).

The OETF maps relative scene linear light into the non-linear PQ signal value.

Parameters

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

Returns

\(E'\) is the resulting non-linear signal (\(R'\), \(G'\), \(B'\)).

Return type

numpy.floating or 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_PQ_BT2100(0.1)  
0.7247698...

previous

colour.models.oetf_inverse_HLG_BT2100

next

colour.models.oetf_inverse_PQ_BT2100