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Grouping by Contrast






Yesterday we talked about 7th annual Best Illusion of The Year contest. We covered the winner and one of the finalists, and I think it wouldn’t be fair if we moved on without mentioning one particular interactive animation. More specifically – the illusion that won the second prize.

Created by Erica Dixon, Arthur Shapiro and Kai Hamburger “Grouping by Contrast” presents luminance levels of four disks modulating in time. The top two disks become white when the bottom two disks become black (and viceversa), but when they are placed against a split background, the disks group together along the diagonals giving the illusion their modulation is out of sync. This grouping pattern follows the contrasts of the disks relative to their backgrounds. You are welcome to test this theory by playing with the interactive button below.


© 2011 Erica Dixon, Arthur Shapiro & Kai Hamburger



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