In above figure, which constitutes a modified version of the painting Tirets by Francois Morellet, small circles seem to appear and disappear as the eye is moved over them.
Morellet's Tirets Illusion
See alsoMoiré Pattern
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ReferencesSeckel, A. The Art of Optical Illusions. Carlton Books, p. 31, 2002.
Referenced on Wolfram|AlphaMorellet's Tirets Illusion
Cite this as:
Weisstein, Eric W. "Morellet's Tirets Illusion." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/MorelletsTiretsIllusion.html