colour.models.eotf_H273_ST428_1

colour.models.eotf_H273_ST428_1(V)

Define the SMPTE ST 428-1 (2019) electro-optical transfer function (EOTF).

Parameters:

V – Electrical signal \(V\).

Returns:

Corresponding output display Luminance \(L_o\) of the image.

Return type:

numpy.ndarray

Notes

• The function given in [InternationalTUnion21] divides \(L_o\) by 48 contrary to what is given in [SocietyoMPaTEngineers19] and colour.models.eotf_DCDM().

Range	Scale - Reference	Scale - 1
V	[0, 1]	[0, 1]

Domain	Scale - Reference	Scale - 1
L_o	[0, 1]	[0, 1]

References

• [InternationalTUnion21], [SocietyoMPaTEngineers19]

Examples

>>> eotf_H273_ST428_1(0.5000483377172)  
0.1799999...