colour.models.eotf_reverse_BT1886

colour.models.eotf_reverse_BT1886(L, L_B=0, L_W=1)

Defines Recommendation ITU-R BT.1886 reverse electro-optical transfer function (EOTF / EOCF).

Parameters:

• L (numeric or array_like) – Screen luminance in \(cd/m^2\).
• L_B (numeric, optional) – Screen luminance for black.
• L_W (numeric, optional) – Screen luminance for white.

Returns:

Input video signal level (normalized, black at \(V = 0\), to white at \(V = 1\).

Return type:

numeric or ndarray

References

• [InternationalTUnion11a]

Examples

>>> eotf_reverse_BT1886(0.11699185725296059)  
0.4090077...