s001. Hey orange!
You know what to do with those oranges, right? No, don’t eat them. Just found them in an open box near the stairs and they were already mushy when I picked them (and I don’t know who owns or left them).
Some of you might already know what to do when you see four oranges, I mean, two seemingly identical pictures placed side-by-side.
Stereography is the science (mostly) of rendering a 3-d image in the mind of the viewer by using a pair of 2-d images.
Above is an example for orthostereography, which uses images that are presented side-by-side. This kind of stereography goes back a long time, and was quite popular around the turn of the 19th century.
Learning to look or to see at stereograms can be easy for others. Some, though might find it hard to get the right ‘look’.
Way back in a Science class during my elementary days, I remember a lesson that indirectly demonstrated how one can see a stereogram. Actually, it was a topic about wall-eyed and cross-eyed (eye/sight disorders), and I had no idea whatever a stereogram was. It, the textbook, showed that when you put your two thumbs together (pointing towards each other) and try to see it with wall-eyed (I’m sure it is not cross-eyed, because I’m trying but I can’t), you will see a small oblong that is actually your thumbs’ ends merging. (Like the tips —the nail part— of your thumbs are chopped and placed together.)
If you can’t get it by doing the wall-eyed, (hey, again, wall-eyed is actually a disorder), my technique is to stare blankly onto the picture without really focusing. (Tulala sa Tagalog). In an instance, in my case, I see the two pictures moving and converging, producing three images. The image in the center is the product where you perceive the 3d effect. And you can ‘actually’ finally focus on the middle image once you see it to feel the effect better. You may have to adjust your distance from the pictures ‘to get the picture’.
I like looking at stereograms until I feel a slight dizziness. That’s why I want to make more. :))