Apr
22
Three Dimensions Are Better Than Two
Filed Under Color Basics, Digital Imaging, Herbiology, Illusions, Images in Print
Normally, your eyes don’t see anything in just one dimension. But pictures, whether on a monitor or in print, represent only one view, not two, like your eyes see.
Close one eye and look across the room. Now open it again and see the difference. When your eyes observe a scene, your brain merges two slightly different views of a scene (one from each eye) building a third dimension, depth, into your mind.
This phenomenon of depth perception can be crudely simulated by such things as 3-D movies, where two opposing colored lenses (usually red and green) recognize slightly misregistered (green and red) images recorded from two cameras lined-up at about the same distance apart as the human eyes. The red image is cancelled-out by the red lens and the green image is cancelled-out by the green lens. Once again, your brain is called on to assimilate two images into a single scene. Your brain is very tolerant of human silliness.
But in the case of printed images, your mind excuses single-vantage-point images, allowing you to perceptually accept the image as real even though your eyes have never actually seen such a thing in real life.
Think about it!
©copyright 2008 Herb Paynter
http://www.imageprep.net
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