colour.difference.delta_E_ITP#

Compute the colour difference \(\Delta E_{ITP}\) between two specified \(IC_TC_P\) colour encoding arrays using the Recommendation ITU-R BT.2124.

Parameters:

ICtCp_1 (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) – \(IC_TC_P\) colour encoding array 1.
ICtCp_2 (Annotated[_Buffer | _SupportsArray[dtype[Any]] | _NestedSequence[_SupportsArray[dtype[Any]]] | complex | bytes | str | _NestedSequence[complex | bytes | str], 1]) – \(IC_TC_P\) colour encoding array 2.

Returns:

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

Return type:

numpy.ndarray

Notes

A value of 1 is equivalent to a just noticeable difference when viewed in the most critical adaptation state.

Domain	Scale - Reference	Scale - 1
`ICtCp_1`	1	1
`ICtCp_2`	1	1

References

[InternationalTUnion19]

Examples

>>> ICtCp_1 = np.array([0.4885468072, -0.04739350675, 0.07475401302])
>>> ICtCp_2 = np.array([0.4899203231, -0.04567508203, 0.07361341775])
>>> delta_E_ITP(ICtCp_1, ICtCp_2)
1.42657228...

colour.difference.delta_E_ITP#

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