Fig. 10
From: Tensor decomposition for painting analysis. Part 2: spatio-temporal simulation
The spatio-temporal simulation at time step 2 is most similar to the hyperspectral image, both colorimetrically and spectrally, with an average \(\Delta E_{00}\) of 0.86 and an average RMSE of 0.13. This indicates that light-induced aging happened in-between the two measurements (microfading and hyperspectral). However, there are other factors, mainly related to the differences between the two acquisitions setups, that could influence the accuracy of this result