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19th August 2009, 16:23
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#1 |
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Stereograms ~ {ERG}
Stereograms BEFORE YOU SKIP THE TEXT PLEASE READ IT FOR IT HAS VALUABLE INFORMATION, DON'T GO MAKING REPLIES LIKE "I CANNOT SEE A THING", BECAUSE ALL THESE HAVE BEEN TESTED BY ME. A stereogram is a picture within a picture. Hidden inside each image is an object which appears in 3D when viewed correctly. Most Stereogram pictures are usually generated so that if you look at (converge your eyes on) a position twice as far away as the picture, and focus on the picture, generally after a few minutes you see a surprising 3D image! Most people find this extremely difficult for the first time. You have to focus on a point which is different from where you are looking. This is known as "de-coupling" your vision process. Instinctively people focus at the same point they are looking at, and this is the main obstacle in seeing images of this type. This is why most posters come with a reflective surface such as glass or plastic covering them---if you try to look at your reflection you will be looking at a point twice as far away as the actual poster. It has been noted by almost everyone that while this sometimes helps beginners see the 3D effect for the first (and perhaps even the first few) times, experienced viewers to not need any help like this, and indeed the reflection is usually very distracting and decreases the quality of the 3D effect. There are many ways to teach this de-coupling to either yourself or to others, including (in almost no particular order): NOTE: It is generally easier to see Stereograms under bright light. I have been told this is because you eye relies less on focus under harsh conditions. Another point, to see stereo images, you need to have "passable" use of both eyes. If you wear glasses try with and without them on. Some short-sighted people can see them easier without their glasses on (if they get closer to the picture). The pull-back Hold the picture (or move your face) so your nose is touching the picture. Most people than can not possibly focus with something this close to their eyes, and they will be content with their inability to focus. With the picture up close, pretend that you are looking straight ahead, right through it. Now slowly pull the picture (or your face) away while keeping your eyes pointed straight ahead. If you do this slow enough, an image usually appears when the picture is at the correct distance. The Card Hold a thin postcard or even a visiting card directly in the middle of the picture. Now move your head to position the other end of the card between your eyes. If the alignment is good you should see only one image. Now relax your eyes and slowly bring things into focus, pulling your head back. Remember you should not think that you see a 3D effect, you should be sure. When you are sure continue focusing & remove the card.  |
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19th August 2009, 17:35
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#2 |
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Don't Mess With Jenny48549
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These are always a lot of fun, hope you have more examples! I learned to view these when I was a kid with a tecnique that you didn't mention above- it might be easier for some using this method, similar to the viewing card.
Basically, to make the images pop all I am doing is allowing my eyes to slightly cross. I emphasize, slightly! As I learned it, all you need to do is hold up your index finger about 12 inches away from your face while allowing the picture to fill your background vision. Focus on your finger and move it closer to your nose, do this slowly until you notice the double vision associated with crossing your eyes. Just where the effect starts should be enough to produce the effect. Even with good vision you may have to concentrate to bring the picture back into focus, keeping your eyes relaxed will help, straining will cause you to over-compansate. When the picture is back in sharp(er) focus slowly lower your finger. It can take some practice, but once your eyes become accustomed to it, you shouldn't have any problem. You'll automatically know how to position and focus without any aids to help you. Tip: Looking at the abouve picture you'll notice there are five full pictures of the clocks and two halve pictures. You'll know your eyes are in the right position when you count six full pictures of the clock. That will produce the 3d effect, you may only then need to adjust your focus to bring the image into sharp relief! Hope that helps!
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Last edited by Pheonixx; 19th August 2009 at 21:17.
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21st August 2009, 00:04
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#4 |
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Im normally good at these but ^ one gave me a headache
 got it eventually though  |
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23rd August 2009, 11:06
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#7 |
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Blossom Waves  |
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