colour.models.ootf_BT2100_PQ

colour.models.ootf_BT2100_PQ(E)

Defines Recommendation ITU-R BT.2100 Reference PQ opto-optical transfer function (OOTF / OOCF).

The OOTF maps relative scene linear light to display linear light.

Parameters:E (numeric or array_like) – \(E = {R_S, G_S, B_S; Y_S; or I_S}\) is the signal determined by scene light and scaled by camera exposure. The values \(E\), \(R_S\), \(G_S\), \(B_S\), \(Y_S\), \(I_S\) are in the range [0, 1]. Returns:\(F_D\) is the luminance of a displayed linear component (\(R_D\), \(G_D\), \(B_D\); \(Y_D\); or \(I_D\)). Return type:numeric or ndarray

References

• [Bor17]
• [InternationalTUnion16]

Examples

>>> ootf_BT2100_PQ(0.1)  
779.9883608...