Not everyone can observe the 3D images hidden in these simple drawings. When we believe that we are all the same, we suddenly discover certain abilities that make us unique. Although seeing 3D images without glasses is not a superpower, it does have its magic.
These 3D images, better known as stereograms, have their trick. They are part of an optical illusion that we all like to try to perceive. To achieve a stereogram you need a good dose of knowledge, since not everyone can generate one from nothing.
What are these 3D images and how do they work?
These images are three-dimensional drawings hidden in a two-dimensional image. They are achieved from the way the eyes and brain build the entire structure of an image. For example, whenever we look at something our eyes capture an image that is slightly different from what is possibly real.
You can test this theory by closing one eye and then the other. You will notice that with each eye things look different. This happens because the brain processes and superimposes the images extracted by each eye and in that process obtains volumes, distances, colors, etc.
In the case of stereograms or 3D images, they hide in their pattern two similar images with slight differences. The secret is that the images are placed so that when the brain interprets them, you can see the differences in volume and depth.
Now, try it and tell us if you can see the following images in 3D:
Could you or not?
If you were able to see the volume differences in the stereograms, it means that your vision is in excellent condition and works in complete coordination. But, if you couldn’t see the stereogram, that doesn’t mean you’re doing it wrong.
In reality, what happens is that people with visual problems have greater difficulty making their vision work together. In this sense, those who have severe problems will never be able to achieve it, and others will achieve it with some practice.
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