colour.difference.index_stress_Garcia2007

colour.difference.index_stress_Garcia2007(d_E: ArrayLike, d_V: ArrayLike) → NDArrayFloat

Compute the Kruskal’s Standardized Residual Sum of Squares (:math:`STRESS`) index according to the García, Huertas, Melgosa and Cui (2007) method.

Parameters:

• d_E (ArrayLike) – Computed colour difference array \(\Delta E\).

• d_V (ArrayLike) – Computed colour difference array \(\Delta V\).

Returns:

\(STRESS\) index.

Return type:

numpy.ndarray

References

[GarciaHMC07]

Examples

>>> d_E = np.array([2.0425, 2.8615, 3.4412])
>>> d_V = np.array([1.2644, 1.2630, 1.8731])
>>> index_stress_Garcia2007(d_E, d_V)
np.float64(0.1211709...)