After a conversation with Georgia Lee
, I decided to try making a tutorial to help explain strategies to view Stereogram images.
(This includes computer generated autostereograms.)
In Red, you will find the "technical" description of where to place your focus. If you can think of how you use a mirror, you do NOT look AT the image. Rather, you are focusing "through" the image. (You don't look at a mirror, but through it, about equidistant to see your image.)
For a complete technical description, look here:https://people.ece.cornell.edu/land/courses/ece5760
In Purple, you will see a less technical method. Since many artists are also daydreamers, this method may actually be more helpful. Have you ever sat daydreaming and realized your eyes were "unfocused"? It's the same muscles in your eyes that you need to "unfocus" in order to see the 3D image. (No, this isn't crossing your eyes. Don't cross. It's actually the opposite of crossing.)
For additional tips to see computer made autostereograms, look here:http://www.3dstereograms.com/stereogram-viewing-tips.php
(But keep in mind, my images are actual pictures as well, so there isn't a "hidden" picture...just dimensionalization of the existing elements.)
"But I still can't see them?" Only a small segment of people physically cannot view them (people blind in one eye, for example). Hold up one finger arm length in front of you. Look at an object on the other side of the room from you while holding your finger (still at arms length) between your eyes and the object you chose to look at. While continuing to look at the object, does your peripheral vision think you are holding up two fingers? If so, then you have the ability to see stereograms as well because your eye muscles just made the necessary adjustments required to see the 3D illusion.
One last suggestion: my designs are inspired by the old stereoscopes. Those devices had to be held with the image a particular distance away and with a divider that kept each eye from seeing both images. If you treated my designs that way, keeping the image to where it appears to be about two or three inches in width (not length) and then place a thin piece of dark cardboard between each image, that may help your eyes with the illusion (a clipboard works great).
Hope this helps!
Here are several stereograms I've created that you may practice with:http://app.sketchclub.com/sketch/10846428
(images used in this tutorial)http://app.sketchclub.com/sketch/10837684http://app.sketchclub.com/sketch/10834203http://app.sketchclub.com/sketch/10866271http://app.sketchclub.com/sketch/10869699http://app.sketchclub.com/sketch/10899266http://app.sketchclub.com/sketch/10910384http://app.sketchclub.com/sketch/10910388http://app.sketchclub.com/sketch/10910637http://app.sketchclub.com/sketch/10910677http://app.sketchclub.com/sketch/10910864http://app.sketchclub.com/sketch/10911278http://app.sketchclub.com/sketch/10915457
As of October 2017, there is a Stereogram group.http://app.sketchclub.com/group/stereograms
Feel free to visit to view the gallery of additional stereoscopic images from other artists, the learn how to create them for yourself or to join the discussion!
Since the fad era of stereograms some 25 years ago, in recent years there is growing evidence that the act of viewing stereograms is visually beneficial. The process in which the eye muscles move to bring an image into focus is essentially an isometric vision strengthening exercise.
Fun and healthy!
Side note: If anyone reads this far, I would be curious to know your opinion on a Stereogram compo. Thanks!
(Yes, I have a tutorial on how to make them:http://app.sketchclub.com/sketch/10910562