Is Seeing Believing? (Please watch video first)

 This site offers many "EYE TRICKS": http://www.colorbasics.com/Optical-Illusions/ If you really want to "drill down" to what is going on, A GREAT BOOK, "VISION and ART" is found here: http://comprehensivephotography.com/books/33.html

 So, what did we see from this exercise of "the inverse image of the girl"?

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