colour.difference.delta_E_CIE1976#
- colour.difference.delta_E_CIE1976(Lab_1: ArrayLike, Lab_2: ArrayLike) NDArrayFloat [source]#
Return the difference \(\Delta E_{76}\) between two given CIE L*a*b* colourspace arrays using CIE 1976 recommendation.
- Parameters:
Lab_1 (ArrayLike) – CIE L*a*b* colourspace array 1.
Lab_2 (ArrayLike) – CIE L*a*b* colourspace array 2.
- Returns:
Colour difference \(\Delta E_{76}\).
- Return type:
Notes
Domain
Scale - Reference
Scale - 1
Lab_1
L_1
: [0, 100]a_1
: [-100, 100]b_1
: [-100, 100]L_1
: [0, 1]a_1
: [-1, 1]b_1
: [-1, 1]Lab_2
L_2
: [0, 100]a_2
: [-100, 100]b_2
: [-100, 100]L_2
: [0, 1]a_2
: [-1, 1]b_2
: [-1, 1]References
[Lin03a]
Examples
>>> Lab_1 = np.array([48.99183622, -0.10561667, 400.65619925]) >>> Lab_2 = np.array([50.65907324, -0.11671910, 402.82235718]) >>> delta_E_CIE1976(Lab_1, Lab_2) 2.7335037...