Bedroom in Arles, Van Gogh
This activity belongs to the GeoGebra book Voronoi Paintings.
The procedure we are using is not valid for all paintings, whether figurative or abstract. In some cases, because the elements lack a sharp profile, as in Pollock's painting Number 1A. In others, because the silhouettes of the focal areas form a single group that dominates the entire painting, as in Goya's The Third of May in Madrid (Figure 16).
Figure 16: Number 1A (Pollock) and The Third of May (Goya)
Figure 17: The Voronoi diagram highlights the isolation of the elements in this painting
Author of the activity and GeoGebra construction: Rafael Losada.