Dazzle camouflage, also known as razzle dazzle or dazzle painting, was a family of ship camouflage used extensively in World War I and to a lesser extent in World War II. Credited to artist Norman Wilkinson, it consisted of complex patterns of geometric shapes in contrasting colours, interrupting and intersecting each other.
Unlike some other forms of camouflage, dazzle works not by offering concealment but by making it difficult to estimate a target's range, speed and heading. Norman Wilkinson explained in 1919 that dazzle was intended more to mislead the enemy as to the correct position to take up than actually to miss his shot when firing.
Dazzle was adopted by the British Admiralty and the U.S. Navy with little evaluation. Each ship's dazzle pattern was unique to avoid making classes of ships instantly recognisable to the enemy. The result was that a profusion of dazzle schemes was tried, and the evidence for their success was at best mixed. So many factors were involved that it was impossible to determine which were important, and whether any of the colour schemes were effective.
Dazzle attracted the notice of artists, with Picasso notably claiming cubists had invented it. The vorticist artist Edward Wadsworth, who supervised the camouflaging of over 2,000 ships during the First World War, painted a series of canvases of dazzle ships after the war, based on his wartime work.