colour.characterisation.matrix_colour_correction_Cheung2004#
- colour.characterisation.matrix_colour_correction_Cheung2004(M_T: ArrayLike, M_R: ArrayLike, terms: Literal[3, 4, 5, 7, 8, 10, 11, 14, 16, 17, 19, 20, 22, 35] | int = 3) NDArrayFloat [source]#
Compute a colour correction matrix from given \(M_T\) colour array to \(M_R\) colour array using Cheung et al. (2004) method.
- Parameters:
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.
terms (Literal[3, 4, 5, 7, 8, 10, 11, 14, 16, 17, 19, 20, 22, 35] | int) – Number of terms of the expanded polynomial.
- Returns:
Colour correction matrix.
- Return type:
References
Examples
>>> 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 >>> matrix_colour_correction_Cheung2004(M_T, M_R) array([[ 1.0526376..., 0.1378078..., -0.2276339...], [ 0.0739584..., 1.0293994..., -0.1060115...], [ 0.0572550..., -0.2052633..., 1.1015194...]])