colour.difference.delta_E_CIE1976#

Compute the colour difference \(\Delta E_{76}\) between two specified CIE L*a*b* colourspace arrays using the CIE 1976 recommendation.

Parameters:

Lab_1 (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 100]) – CIE L*a*b* colourspace array 1.
Lab_2 (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 100]) – CIE L*a*b* colourspace array 2.

Returns:

Colour difference \(\Delta E_{76}\).

Return type:

numpy.ndarray

Notes

Domain	Scale - Reference	Scale - 1
`Lab_1`	100	1
`Lab_2`	100	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...

colour.difference.delta_E_CIE1976#

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