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Opprints Visual Illusions

Dahlia Contours

Illusory grey dots appear at the intersections of the black lines in this Dahlia flower-like pattern.

These dots themselves join up to create a secondary illusion of concentric white circles.

The circles usually appear brighter near the centre.

Moving your head from side to side may accentuate the illusion.

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©2002 Opprints

©2002 Opprints

www.opprints.co.uk