DawnArmy Wrote:It seems like everyone sees different pictures at first glance. For me I saw two praying human first.
I love positive/negative space images. Optical illusion art is often the most "fun" art. The common ones, such as several straight lines drawn at regular intervals through a circle(s) can play tricks on the eye's natural capability of foreshortening objects in terms of distance and the comparison to surroundings. (Sorry. I get a little geeky about art, which I studied in college.) Here's a more complex version of that illusion:
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Do the horizontal lines look straight or curved?
(This image does my head in a bit, but that's only because the eye is desperately trying to make sense of the illusion.)
The most famous of the dual image optical illusion's is Rubin's Vase:
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Which do you see first?
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Here a more complex version of Rubin's Vase (aka Rubin's Face):
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And if you give the second picture a frame of reference it's even easier to see the secondary image:
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The theory is that the white shapes supposedly advance while the black shapes tend to recede. As you can tell from the responses to the OP, that isn't always the case. Although when I placed the black box around the white space in the second Rubin Vase the frame of reference for the eye does make it easier to see the white shape advancing.
Ok, I've embarrassed myself enough. This is Sheldon Cooper signing off from "Fun with Flags".