Optical illusion, 錯視/ 視錯覺

The narrator on the video from Bite Size Psych explains: 'If you zoom in on the picture you find that the striped bars aren't actually the same colour'
Optical illusion is stumping the whole web (and we guarantee you'll get it wrong too) | Daily Mail Online
Read more: http://www.dailymail.co.uk/femail/article-3544253/Optical-illusion-stumping-web-guarantee-ll-wrong-too.html#ixzz46DdWU1KB
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optical illusion - 視錯覺

Optical illusion - Wikipedia, the free encyclopedia

錯視又稱視覺假像