Fig. 3From: The role of smalt in complex pigment mixtures in Rembrandt’s Homer 1663: combining MA-XRF imaging, microanalysis, paint reconstructions and OCTT-SNE cluster analyses of the MA-XRF data showing the 18 clusters (a–d) as color projections on top of the Pb-L map (left), together with their spectral line intensities (middle), and tSNE plots (right)Back to article page