colour.difference.delta_E_CIE1976¶
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colour.difference.
delta_E_CIE1976
(Lab_1, Lab_2)[source]¶ Returns the difference \(\Delta E_{ab}\) between two given CIE L*a*b* colourspace arrays using CIE 1976 recommendation.
Parameters: - Lab_1 (array_like) – CIE L*a*b* colourspace array 1.
- Lab_2 (array_like) – CIE L*a*b* colourspace array 2.
Returns: Colour difference \(\Delta E_{ab}\).
Return type: numeric or ndarray
References
Examples
>>> Lab_1 = np.array([100.00000000, 21.57210357, 272.22819350]) >>> Lab_2 = np.array([100.00000000, 426.67945353, 72.39590835]) >>> delta_E_CIE1976(Lab_1, Lab_2) 451.7133019...