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I couldn't tell which one was supposed to seem female and which male, myself, although I have some problem differentiating faces, anyway.


The difference is much easier to perceive after further increase of contrast and brightness:

http://alteredqualia.com/visualization/hn/illusion-of-sex.pn...


Indeed. I had no trouble at all with the top one. Well, "trouble", given that this is an error. :)




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