colour.models.eotf_DCDM#

colour.models.eotf_DCDM(XYZ_p: ArrayLike, in_int: bool = False) → NDArrayFloat[source]#

Apply the DCDM electro-optical transfer function (EOTF).

Parameters:

XYZ_p (ArrayLike) – Non-linear CIE XYZ’ tristimulus values.
in_int (bool) – Whether to treat the input value as integer code value or float equivalent of a code value at a specified bit-depth.

Returns:

CIE XYZ tristimulus values.

Return type:

numpy.ndarray

Warning

DCDM is an absolute transfer function.

Notes

DCDM is an absolute transfer function, thus the domain and range values for the Reference and 1 scales are only indicative that the data is not affected by scale transformations.

Domain *	Scale - Reference	Scale - 1
`XYZ_p`	`UN`	`UN`

Range *	Scale - Reference	Scale - 1
`XYZ`	`UN`	`UN`

* This definition has an input int switch, thus the domain-range scale information is only specified for the floating point mode.

References

Examples

>>> eotf_DCDM(0.11281860951766724)
0.18...
>>> eotf_DCDM(462, in_int=True)
0.18...