colour.XYZ_to_IPT¶
-
colour.
XYZ_to_IPT
(XYZ)[source]¶ Converts from CIE XYZ tristimulus values to IPT colourspace.
Parameters: XYZ (array_like) – CIE XYZ tristimulus values. Returns: IPT colourspace array. Return type: ndarray Notes
Domain Scale - Reference Scale - 1 XYZ
[0, 1] [0, 1] Range Scale - Reference Scale - 1 IPT
I
: [0, 1]P
: [-1, 1]T
: [-1, 1]I
: [0, 1]P
: [-1, 1]T
: [-1, 1]- Input CIE XYZ tristimulus values needs to be adapted for CIE Standard Illuminant D Series D65.
References
Examples
>>> XYZ = np.array([0.20654008, 0.12197225, 0.05136952]) >>> XYZ_to_IPT(XYZ) # doctest: +ELLIPSIS array([ 0.3842619..., 0.3848730..., 0.1888683...])