Fig. 6
From: Discerning the painter’s hand: machine learning on surface topography
A Example of a painting divided into background, foreground, and border (mixed background and foreground) patches of size 100 × 100 pixels (5 × 5 mm). B Distribution of the three classes across all patches in the training set. C Results from training on background patches, testing on foreground patches and vice versa using both height data and high-resolution photo data