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Stereograms
Beginning of essay
Single Image Random Dot (SIRDS) are not only a lot of fun, but they demonstrate many of the properties of stereopsis. "Stereopsis" means that each eye sees a slightly different image, also known as three dimensional or 3D. Stereopsis is essential for our perception of depth.
Leonardo da Vinci dem ....
Middle of essay
.... with impaired depth perception or people who have one eye which is extremely dominant will have more difficulty seeing stereograms.
A stereogram is seen by allowing the eyes to diverge. It's as if you're focused on an object that is more distant than the printed page. However, if you cross your eyes you will invert the image (see the image inside out). Crossing the eyes may also strain the eyes. The normal diverging technique can actually help you learn to relax your eyes
There are many int.... |
| Number of words: 1535 |
Approximate pages: 6 |
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