colour.models.eotf_inverse_BT2100_PQ

colour.models.eotf_inverse_BT2100_PQ(F_D: ArrayLike) → NDArrayFloat

Apply the Recommendation ITU-R BT.2100 Reference PQ inverse electro-optical transfer function (EOTF).

Parameters:

F_D (ArrayLike) – Luminance \(F_D\) of a displayed linear component \(\{R_D, G_D, B_D\}\) or \(Y_D\) or \(I_D\), in \(cd/m^2\).

Returns:

\(E'\) denotes a non-linear colour value \(\{R', G', B'\}\) or \(\{L', M', S'\}\).

Return type:

numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
F_D	UN	UN

Range	Scale - Reference	Scale - 1
E_p	UN	UN

References

[Bor17], [InternationalTUnion17]

Examples

>>> eotf_inverse_BT2100_PQ(779.988360834085370)
np.float64(0.7247698...)