colour.IPT_to_XYZ¶

colour.IPT_to_XYZ(IPT)[source]¶

Converts from IPT colourspace to CIE XYZ tristimulus values.

Parameters:	IPT (array_like) – IPT colourspace array.
Returns:	CIE XYZ tristimulus values.
Return type:	ndarray

Notes

Domain Scale - Reference Scale - 1

IPT

I : [0, 1]

P : [-1, 1]

T : [-1, 1]

I : [0, 1]

P : [-1, 1]

T : [-1, 1]

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

References

[Fai13d]

Examples

>>> IPT = np.array([0.38426191, 0.38487306, 0.18886838])
>>> IPT_to_XYZ(IPT)  # doctest: +ELLIPSIS
array([ 0.2065400...,  0.1219722...,  0.0513695...])