All material presented on this website, including articles, images, stereograms, flash clips and programs
are copyright protected and can not be used without written permission of the website owner
Welcome to the World of Hidden 3D Stereograms.
A stereogram is a 2D image that creates a visual illusion of a 3D scene. In order to see the hidden 3D shapes in these images, a special viewing technique is required.
If you do not know how use this technique, learn from these instructions:
Our Mission: This website is dedicated to stereograms, also called autostereograms, amazing optical illusions of three dimensions hidden within two dimensions.
Our mission is to collect all information about stereograms in one place and preserve it for future generations. Also, we want to let people, who are not familiar with stereograms,
know more about this fascinating art.
What are stereograms? A stereogram is an optical illusion of stereoscopic depth created from a flat, two-dimensional image or images.
At first sight a stereogram looks like an abstract image made of repeatable patterns. But if you look at it in a special way, the hidden 3D picture will magically appear.
What you will see is a relief object or objects wrapped with the pattern you can see in the 2D picture.
Some stereograms don't have hidden images and consist of several objects placed in rows. When you perceive them, the objects will appear three dimensional, sometimes resting on different levels of depth.
Not all stereograms are the same. There are different types and styles of stereograms.
How to see the stereograms? If you are a person who sometimes has trouble seeing hidden images in stereograms,
let us explore together how to view stereograms.
Once you can see stereograms well, you'll be able to see stereograms in our galleries,
play stereogram games, and even create your own stereograms with hidden pictures.
What blocks some people's ability to see stereograms? Most people (with normal vision) are able to see stereoscopic images,
however some people with monocular vision, who can only see out of one eye, cannot see hidden stereogram pictures the way most people can.
Surprisingly there is a tool on our website which reveals the
hidden image or images to people who can't see the hidden stereogram images with normal binocular vision.
How are stereograms made?
There are different types of stereograms, but the most popular ones, those with a hidden picture, are made from two images,
a depth map of the hidden picture, and some 2D pattern.
Special software renders stereograms, by stretching and cutting the pattern based on the given hidden picture.
Try our simple online stereogram creation tool - Stereogram Paint.
History of stereograms:
Originally stereograms were known as stereoscopic cards, representing views for each eye. The invention of autostereograms was possible thank to
computers. In the 90`s stereograms became a world craze and millions of stereogram books were sold.
After the craze calmed down, stereograms became a small niche of stereoscopical art.
Check the menu on your left, it allows you to access all main pages such as Theory, Gallery and Games.
It has two levels, the Main Menu and Sub-menu.
When you click on the main menu item, its sub-items will expand on the sub-menu, or you can just explore
our website using the sitemap.
by Nicola on 2009-07-21 05:58:59
i love these images and so easy to do
by josephine on 2009-09-29 04:43:40
Very much it is pleasant to see It!!!!!! br
by Marina on 2009-12-14 12:45:26
these are amazing
by angela on 2010-01-18 03:44:29
these pictures ar sooo cool but its a shame they ent all green!!! lol
by jade on 2010-01-18 03:46:22
yh i know!!!! i love green and orange!!! awsome x
by angela on 2010-01-18 03:47:00
you are too dull =( (9-Z)(9-X)(9-Y) is the answer
by Charlie on 2010-01-26 04:12:28
it looks like 948
by 948 on 2010-07-16 17:22:01
by xxx on 2010-08-07 13:36:04
by djayrush on 2010-10-26 11:45:06
Is there a way to get in touch with you? A friend and I have created a website that is all autostereograms - http://hiddenshit.net/ br br (click to advance)
by Adam on 2010-10-26 12:24:58
Is this a good excercise for a persons eyes - is sthis something that would be good to help preserve your eyesight?
fantastic program...many thanks for sharing this program br can I change or create stretch and cutting back ground?
by NAM on 2011-05-24 19:23:15
I really want to get your contact number or mail address
by NAM on 2011-05-24 19:24:17
by dirk on 2011-06-23 07:20:29
by welly luther on 2011-09-07 23:00:49
these pictures ar sooo cool but its a shame they ent all green!!! lol
by ahmad on 2011-09-22 11:16:52
by murugesa pillai on 2011-10-01 10:32:44
by ankam on 2011-10-21 07:55:28
Hahaha. Great captcha!
by nemesis on 2011-10-24 14:26:39
i can see every one so easily -___- br br HIDDEN CODE IS: 452
by electriclord3 on 2012-01-15 09:30:14
Very nice to experiment with the software :) But could you please give us tips how to create a good depth map (which program do you use) and how to create a good texture map without the black lines and stuff. That would be very kind. br br Go on with your great art! Flo
by Flo on 2012-02-02 07:27:59
Is it good for health or not?
by hoho on 2012-02-08 02:10:33
by 150 on 2012-02-26 23:39:28
am i right
by jones on 2012-03-27 10:22:28
am i right 491
by jones on 2012-03-27 10:23:05
by a on 2012-05-24 00:04:55
by a on 2012-05-24 00:08:02
The link on your main page to reveal stereograms for those of us that can t see 3D is incorrect. What a cruel joke--I had to use that app to figure out your CAPTCHA to even post this comment. Anyway the actual link should be: br http://www.hidden-3d.com/reveal_stereogram.php
by Fix the link on 2012-05-24 17:17:35
by kishor on 2012-09-09 13:09:31
the code changes when you refresh the page so there is not only one code.
by le loucheur on 2012-11-05 20:15:56
GO GO GO
by GOOD on 2012-11-15 03:34:29
ا ن ا ا ش ك ر ك ش ك ر ا ج ز ى ل ا ع ل ي ب ر ا ع ت ك و م ج ه و د ك
by ali youssuf on 2012-12-12 17:17:07
by dinesh on 2013-01-19 06:42:50
by dinesh on 2013-01-19 06:43:26
my mail br firstname.lastname@example.org
by igor on 2013-06-05 05:53:32
by Atul on 2013-07-19 13:39:04
I m about to finish my work on a 3D Ascii Pong game for iPad I d love to get in contact with you. Here is my junk e-mail address since I don t want to post my primary on an open site: email@example.com br br You can download a version of it for Mac at http://digitaldiscrepancy.com/3DAsciiPong.zip br br I ll port it to windows soon the stereogram generator code was written in C.
by Pat on 2013-12-22 23:32:42
Screenshots for iPad app rendered in .gif: http://digitaldiscrepancy.com/images/animation.gif
by Pat on 2013-12-27 06:33:50
These are the best stereograms I ve ever seen. The texture / pattern is beautifully integrated into the composition.
by Boris on 2014-02-16 05:02:32
by jack on 2014-11-21 04:30:27
The score submission for Tetris doesn t work anymore. Please fix it!
by Piotr on 2015-03-14 15:55:06
by Yago on 2015-03-16 04:59:27
by hhank on 2015-05-08 19:42:00
by John on 2015-06-28 02:50:51
Check out android free app @ https://play.google.com/store/apps/details?id=com.cowbeans.hiddenmagic
by Android on 2015-11-04 08:49:55
I love stereograms post more plz
by Terry lough on 2016-03-09 10:20:45
I love these things! How is it that no one else I show these to can see them? I have no problem with them. Anyone else have this problem with your friends? They all think I am crazy!
by Skittles on 2016-04-25 12:18:36
by 110 on 2016-05-03 01:37:42
非 常 漂 亮 的 三 维 立 体 画 中 国 人 一 样 喜 欢 的 。 哈 哈 !!
by 我 是 中 国 人 on 2016-06-26 19:06:21
Very beautiful three-dimensional picture of the Chinese people like the same. ha-ha!!
by I am Chinese on 2016-06-26 19:10:11
by hafiz on 2016-10-21 08:49:08
I would like to learn how to make stereograms. Can you help?
by Cole on 2017-07-18 22:55:02
Please see my comment on the 3D Piano image at hidden-3d.com/index.php?id=gallery&oid=&pk=101&gallery=OAS. br Also my participation at familyday.hu
by Samuel Verbiese on 2017-08-04 13:32:55
Hello awesome site finally something beyond the basic stereograms! Love the dual stereogram never saw one before! br br BTW you have a couple of bad links on the home page (there is localhost at the beginning). br br Also love the stereogram hidden code/captcha :)
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by ??? on 2019-12-04 20:09:00
I got the code
by Kishorravan on 2020-02-23 12:21:39
wala akong makita
by I am M Valencia on 2020-02-23 12:53:36
by Nameez on 2020-04-17 15:02:48
ez ez i found the code
by Soldr on 2021-02-14 17:58:12
How are these not way more popular?
by T_archer on 2021-03-30 18:45:19
like it very much
by heige on 2022-11-06 05:51:55
by Luis C on 2023-04-28 14:31:50
by Karen on 2023-04-28 14:32:31
by Oliver on 2023-07-14 00:18:16
by Oliver on 2023-07-14 00:18:36
by Oliver on 2023-07-14 00:19:12
I freaking love these and I m glad there s a whole website for them!