Rune <aut### [at] runevisioncom> wrote:
> For example, the eyes have an edge detecting layer I think, or something 
> along those lines. This layer could find all the edges of the bars in your 
> image and send information about these edges on to the brain, so that the 
> brain can tell how many bars there are. The eyes also send the actual "raw" 
> brightness info on to the brain, but this may be in a "low resolution" where 
> no more than 16 different shades can be told apart. However, the brain can 
> still count all the bars, becuase of the edges detected in the eyes.

  I'm quite certain that if it was an animation where each frame is
completely filled by a shade of gray and was played eg. at 1 FPS, you
could clearly see the change.

-- 
                                                          - Warp

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