colour.models.eotf_PQ_BT2100

colour.models.eotf_PQ_BT2100(E_p)[source]

Defines Recommendation ITU-R BT.2100 Reference PQ electro-optical transfer function (EOTF / EOCF).

The EOTF maps the non-linear PQ signal into display light.

Parameters:E_p (numeric or array_like) – \(E'\) denotes a non-linear colour value \({R', G', B'}\) or \({L', M', S'}\) in PQ space [0, 1].
Returns:\(F_D\) is the luminance of a displayed linear component \({R_D, G_D, B_D}\) or \(Y_D\) or \(I_D\), in \(cd/m^2\).
Return type:numeric or ndarray

Notes

Domain Scale - Reference Scale - 1
E_p [0, 1] [0, 1]
Range Scale - Reference Scale - 1
F_D [0, 1] [0, 1]

References

[Borer2017a], [InternationalTelecommunicationUnion2017]

Examples

>>> eotf_PQ_BT2100(0.724769816665726)  # doctest: +ELLIPSIS
779.9883608...