This optical illusion [1] is the closest thing I've come across. It relies on the fact that there are apparently separate parts of the visual processing in the

This optical illusion [1] is the closest thing I've come across. It relies on the fact that there are apparently separate parts of the visual processing in the brain for fine details and for more coarse features. This illusion consists of a picture of the fine details of Albert Einsteins face, so when you are close enough to see the details, you see Albert. But there is also a blurry image of Marilyn Monroe, which isn't really possible to make out until you view the image from farther away, or squint your eyes, so that the finer details are lost. [1] http://www.123opticalillusions.com/pages/albert-einstein-marilyn-monroe.php http://www.123opticalillusions.com/pages/albert-einstein-mar...