colour.models.eotf_reverse_BT2100_HLG¶
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colour.models.
eotf_reverse_BT2100_HLG
(F_D, L_B=0, L_W=1000, gamma=None)[source]¶ Defines Recommendation ITU-R BT.2100 Reference HLG reverse electro-optical transfer function (EOTF / EOCF).
Parameters: - F_D (numeric or array_like) – Luminance \(F_D\) of a displayed linear component \({R_D, G_D, B_D}\) or \(Y_D\) or \(I_D\), in \(cd/m^2\).
- L_B (numeric, optional) – \(L_B\) is the display luminance for black in \(cd/m^2\).
- L_W (numeric, optional) – \(L_W\) is nominal peak luminance of the display in \(cd/m^2\) for achromatic pixels.
- gamma (numeric, optional) – System gamma value, 1.2 at the nominal display peak luminance of \(1000 cd/m^2\).
Returns: \(E'\) denotes a non-linear colour value \({R', G', B'}\) or \({L', M', S'}\) in HLG space in range [0, 1].
Return type: numeric or ndarray
References
Examples
>>> eotf_reverse_BT2100_HLG(6.476039825649814) 0.2121320...