colour.XYZ_to_K_ab_HunterLab1966¶
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colour.
XYZ_to_K_ab_HunterLab1966
(XYZ)[source]¶ Converts from whitepoint CIE XYZ tristimulus values to Hunter L,a,b \(K_{a}\) and \(K_{b}\) chromaticity coefficients.
Parameters: XYZ (array_like) – Whitepoint CIE XYZ tristimulus values. Returns: Hunter L,a,b \(K_{a}\) and \(K_{b}\) chromaticity coefficients. Return type: ndarray References
Examples
>>> XYZ = np.array([109.850, 100.000, 35.585]) >>> XYZ_to_K_ab_HunterLab1966(XYZ) # doctest: +ELLIPSIS array([ 185.2378721..., 38.4219142...])