My fourth set of small optical illusion and visual perception related images you can link to from your own website / profile page.

Escaping criticism by Borel, an oil painting about 120 years old

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In case you missed them you can still see the third set of illusion pictures, the second perception pictures as well as the first set of illusion pictures.

Here is another set of small optical illusion and visual perception related images you can link to from your own website / profile page.

An induced contrast paradox: the middle green bar is light top and dark bottom when seen together with the left hand green bar, but all one tone when compared with the right hand green bar.

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In case you missed them you can still see the second perception pictures as well as the first set of illusion pictures.

Here are some more small optical illusion and visual perception related images you can link to from your own website / profile page.

Naked figures make up a face in this detail from a 150 year old print by Kuniyoshi

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In case you missed them you can still view the first set of illusion pictures.

Here are a few small optical illusion and visual perception related images you can link to from your own website / profile page.

Ehrensteins illusion: white circles appear superimposed on the sunbursts.

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