Most recently, Professor at the University of Texas at El Paso David Novick has shared an optical illusion, which he called “confetti,” on his Twitter feed. Despite the fact that the circles in the background appear to be of four different colors, they are all actually the same color.
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Novick explained that the illusion occurs due to the horizontal stripes having different colors and crossing the circle – this is commonly known as Munker-White’s illusion.
The professor stressed that just like all Munker illusions, the perception depends on the size of the image when it’s viewed – at full-screen size, it can easily be seen that the dots are all the same color.
Social media users were amazed by his creation:
Novick’s tweets have apparently inspired some to create similar illusions: