colour.ICaCb_to_XYZ#

colour.ICaCb_to_XYZ(ICaCb: ArrayLike) → NDArrayFloat[source]#

Convert from \(IC_AC_B\) tristimulus values to CIE XYZ colourspace.

Parameters:

ICaCb (ArrayLike) – \(IC_AC_B\) tristimulus values.

Returns:

CIE XYZ colourspace array.

Return type:

numpy.ndarray

Notes

Domain

Scale - Reference

Scale - 1

ICaCb

I : [0, 1]

Ca : [-1, 1]

Cb : [-1, 1]

I : [0, 1]

Ca: [-1, 1]

Cb: [-1, 1]

Range

Scale - Reference

Scale - 1

XYZ

[0, 1]

[0, 1]

References

[Frohlich17]

Examples

>>> XYZ = np.array([0.06875297, 0.05753352, 0.02081548])
>>> ICaCb_to_XYZ(XYZ)
array([ 0.20654008,  0.12197225,  0.05136951])