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Hello fellow investigators

I have two questions about optical illusions

1) A photo mosaic is something like this http://i.stack.imgur.com/Pzplp.png

What are the optical principles behind our eye merging the many tiny images into a large coherent one?

2)Are there etiological explanations of optical illusions in general - by this I mean can it be explained why image inputs get parsed in 'wrong' ways by the eye/brain, why does the parser get confused (I suspect it is because the eye has parsing parameters like we cannot see UV light - is there a list of those somewhere?)

Thanks for your time

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You've posted a nearly identical question on DSP, please don't cross-post to multiple SE sites simultaneously. – Mad Scientist♦ Jul 20 '12 at 16:44
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This question isn't even that good of a fit for DSP or bio.SE, it belongs on cogsci.SE. However, you should still avoid cross-posting. – Artem Kaznatcheev Jul 22 '12 at 5:13

closed as too localized by Mad Scientist♦ Jul 20 '12 at 16:44

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