[color=#0000ff][i][color=#0000ff][i][color=#999999]This activity belongs to the GeoGebra book [url=https://www.geogebra.org/m/saakgfvd]Voronoi Paintings[/url].[/color][/i][/color][/i][/color][br][br]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 [i]Number 1A[/i]. In others, because the silhouettes of the focal areas form a single group that dominates the entire painting, as in Goya's [i]The Third of May in Madrid[/i] (Figure 16).[br][center][url=https://www.geogebra.es/paintings/figura%2016a%20color.jpg][img]https://www.geogebra.es/paintings/peq/figura%2016a%20color.jpg[/img][/url] [url=https://www.geogebra.es/paintings/figura%2016b%20color.jpg][img]https://www.geogebra.es/paintings/peq/figura%2016b%20color.jpg[/img][/url][br]Figure 16: [i]Number 1A (Pollock) and The Third of May (Goya)[/i][/center]However, in other paintings, it is easy to isolate the different elements that capture our attention, as they are well-differentiated, as in Vincent van Gogh's [i]The Bedroom in Arles[/i] (Figure 17).[br][center][url=https://www.geogebra.es/paintings/figura%2017a%20color.jpg][img]https://www.geogebra.es/paintings/peq/figura%2017a%20color.jpg[/img][/url] [url=https://www.geogebra.es/paintings/figura%2017b%20color.jpg][img]https://www.geogebra.es/paintings/peq/figura%2017b%20color.jpg[/img][/url][br]Figure 17: [i]The Voronoi diagram highlights the isolation of the elements in this painting[/i][/center]For better and faster scanner results, it is recommended to [url=https://www.geogebra.org/material/download/format/file/id/duuc93ww]download the construction[/url].

[color=#999999][color=#999999][color=#0000ff][color=#0000ff][color=#999999][color=#999999]Author of the activity and GeoGebra construction: [/color][/color][/color][color=#0000ff][color=#999999][color=#999999][url=https://www.geogebra.org/u/rafael]Rafael Losada[/url].[/color][/color][/color][/color][/color][/color]