Contour Lines in Art


An explanation of Marr's zero-crossings.

For each picture, the original is first, and the result of the search for zero-crossings is second.

Vincent van Gogh -- The Starry Night (original)Vincent van Gogh's Starry Night.

Vincent van Gogh -- The
Starry Night (contours)Contains many long, complicated contours.

Kandinsky -- Composition VI
(original)Wassily Kandinsky's Composition 6

Kandinsky -- Composition VI
(contours)Many complicated shapes, edges

Mondrian -- Composition with Red, Yellow, and Blue (original)Piet Mondrian's Composition with Red, Yellow, and Blue

Mondrian -- Composition
with Red, Yellow, Blue (contours)The structure of the painting remains evident.

Seurat -- Le port de Gravelines
(original)Georges Seurat's Le port de Gravelines

Seurat -- Le port de
Gravelines (contours)You can still make out many details of the picture


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