colour.models.oetf_BT2100_HLG

colour.models.oetf_BT2100_HLG(E)

Defines Recommendation ITU-R BT.2100 Reference HLG opto-electrical transfer function (OETF / OECF).

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

Parameters:E (numeric or array_like) – \(E\) is the signal for each colour component \({R_S, G_S, B_S}\) proportional to scene linear light and scaled by camera exposure, normalized to the range [0, 1]. Returns:\(E\) is the resulting non-linear signal \({R', G', B'}\) in the range [0, 1]. Return type:numeric or ndarray

References

• [Bor17]
• [InternationalTUnion16]

Examples

>>> oetf_BT2100_HLG(0.18 / 12)  
0.2121320...