colour.models.oetf_SMPTE240M

colour.models.oetf_SMPTE240M(L_c: Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) → Annotated[ndarray[tuple[Any, ...], dtype[float16 | float32 | float64]], 1]

Apply the SMPTE 240M opto-electronic transfer function (OETF).

Parameters:

L_c (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) – Light input \(L_c\) to the reference camera normalised to the system reference white.

Returns:

Video signal output \(V_c\) of the reference camera normalised to the system reference white.

Return type:

numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
L_c	1	1

Range	Scale - Reference	Scale - 1
V_c	1	1

References

[SocietyoMPaTEngineers99]

Examples

>>> oetf_SMPTE240M(0.18)
0.4022857...