Hello fellow investigators
I have two question 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, whys does the parser get confused?
Thanks for your time