colour.characterisation.colour_correction_Vandermonde#

colour.characterisation.colour_correction_Vandermonde(RGB: ArrayLike, M_T: ArrayLike, M_R: ArrayLike, degree: int = 1) → NDArrayFloat[source]#

Perform colour correction of RGB colourspace array using the colour correction matrix from \(M_T\) colour array to \(M_R\) colour array using Vandermonde method.

Parameters:

  • RGB (ArrayLike) – RGB colourspace array to colour correct.

  • M_T (ArrayLike) – Test array \(M_T\) to fit onto array \(M_R\).

  • M_R (ArrayLike) – Reference array the array \(M_T\) will be colour fitted against.

  • degree (int) – Expanded polynomial degree.

Returns:

Colour corrected RGB colourspace array.

Return type:

numpy.ndarray

References

[Wikipedia03f]

Examples

>>> RGB = np.array([0.17224810, 0.09170660, 0.06416938])
>>> prng = np.random.RandomState(2)
>>> M_T = prng.random_sample((24, 3))
>>> M_R = M_T + (prng.random_sample((24, 3)) - 0.5) * 0.5
>>> colour_correction_Vandermonde(RGB, M_T, M_R)
array([0.2128689..., 0.1106242..., 0.036213...])