![]() Actually, the first puzzle still has me stumped. It’s just a matter of unfocusing your eyes so that they’re looking “behind” the paper rather than at it.Īnyhow, I particularly liked the first puzzle you posted - since it really was a puzzle and not just a matter of being able to see the image and recognize pi. I know some people need to hold the paper really close to their faces and then pull back, but I’ve never had to use any such trick. To me, though, it’s always been really easy to see the images. I even taught my gramma to see them, and that took some doing. When I was a kid, my family bought me three or four books of them. ![]() The background pattern for these two stereograms comes from the Hubble Deep Field image which was developed by some of the oldest light in the universe. I used to make my own stereograms using a program called Surface 3D R2 by Andreas Moll (Traxxdale Software) but it no longer seems available so try these two free Win XP programs if you want to do this too. ![]() These images fascinate me because they’re essentially tricking my binocular vision into hallucinating objects when I look “through” a pattern of (almost) random noise. (Unless your eyes point in slightly different directions… right?). With any luck the image should simply pop into view. Then use your peripheral vision to search the image for a hint of 3D structure but keep your face in focus. Be sure the monitor is perfectly level, and your head is perfectly vertical. If you can’t see them, try viewing these images on one of those shiny new LCD monitors and focus on your own reflection. And try again.I’ve found stereograms entrancing ever since I first managed to “see” one. If you lose focus, stay where you are and lower the stereogram, focusing again on the object behind it. The image should snap into place and become recognizable.Ħ. Once you can see this, try holding the stereogram up while allowing your eyes to slowly adjust. There should be a sweet spot in which you can begin to see the blurry three-dimensional picture within the stereogram when you raise it to your eyes. Once you’re able to keep your focus on the object and not the stereogram, try repeating this at different distances away from the object.ĥ. This means that your eyes will remain focused on the object instead and won’t readjust on the stereogram.Ĥ. Continue to look at the object and not the stereogram, even when the stereogram is blocking it. Move the stereogram up from underneath the object until it’s blocking your view of the object.ģ. Pick up the stereogram and look at the object that you’ve selected. Choose an object in the room you’re in – a photograph on the wall or a potted plant on a table in the corner.Ģ. Still not seeing it? Try to train your eyes this way:ġ. Once the image snaps into place, you should be able to see a sharp three-dimensional picture. You should be able to see the beginnings of a blurry three-dimensional picture.Ĥ. When you’re confident that your eyes can continue to look through the stereogram, move the image back and forth until the patterns begin to overlap. It may take a couple of tries to get this to work.ģ. Continue to look through the image as you move it away from you. This is the point at which your eyes will try to do what they do naturally – readjust focus. Then move the stereogram slowly away from your eyes. ![]() Hold it horizontally and look through the image as if it weren't right in front of you.Ģ. Start by putting your face up close to the printed stereogram or the digital screen with which you’re viewing it. The good news is, once you have successfully trained yourself to look at a stereogram, it will be that much easier from then on.ġ. Here are a few tips and tricks that can teach you how to do it properly. ![]()
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