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Puzzle, Puzzle, On My Screen
I know the answer can be seen!
But can you find it?
It’s fun playing with stereoscopic effects that depend upon our normal binocular vision capabilities. We have two eyes, each eye looks at the world around us and our brain synthesizes it all into one experience, including depth clues from a variety of sources and significantly from the disparity, or the minor differences between each eye’s view.
In Stereographics, we establish these same differences in what at first appears to be two copies of the same image. But when you direct your right eye at the Right Eye image and your left eye at the Left Eye image, your brain merges them, and measures the differences automatically so that you see depth and shapes that are not apparent just looking at the flat screen itself.
There is a moderately easy skill involved, and hopefully many readers will have already encountered Stereograms, so they may have the skill already. If not, there are easy ways to trick your eyes into finding the right positioning so that you too can indulge in this Eye Candy method that allows your brain to play in a new playground accessed by the fact that you have two eyes!
The images here involve a method called Freeviewing, which is using your eyes to see stereoscopic images without requiring Red/Blue glasses, VR goggles, or other cumbersome optical devices to bring about this satisfying result. Specifically these images use what is called the Crossed Eye-path method, instead of the Parallel Eye-path method.
Most people physically have trouble directing their eye’s wider than straight ahead. That limits the size of images for the Parallel method to a width which matches the distance between your eyes, about 2 1/4 inches.
In the Crossed view method, there is no size restriction which provides access to much larger and higher resolution images — needing no special optical devices at all! That’s freedom!
So, how can we make this real easy for the beginner?
