colour.models.eotf_DCDM¶

colour.models.eotf_DCDM(XYZ_p, in_int=False)[source]¶

Defines the DCDM electro-optical transfer function (EOTF / EOCF).

Parameters

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

Returns

CIE XYZ tristimulus values.

Return type

numeric or 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`	[0, 1]	[0, 1]

Range *	Scale - Reference	Scale - 1
`XYZ`	[0, 1]	[0, 1]

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

References

Examples

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