+30 Optical illusions that will make you doubt everything you see

Our brain is programmed to interpret the images you perceive and draw some conclusions taking into account the information it houses in the form of memories and past experiences. If we take into account this and the functioning of the brain and the gaze in some situations we can create amazing optical illusions. Unexpected compositions that force the brain to complement through illusions.

Then I leave you to end the day with 35 awesome optical illusions:

These two squares are painted the same color, although it is hard to believe. Place your finger on the limit between the two and you will check them, although if you doubt, you can always check it with the eyedropper in Adobe Photoshop. This is what is called the Cornsweet optical illusion and it exploits the lateral inhibition of the brain, which creates more contrast between two objects when they also have different colored edges.

If you cross your eyes you will discover that between the circles is the face of a well-known person.

If you stare at this woman's nose for about ten seconds and then blink rapidly while looking at a well-lit surface, you will see this woman's face in color.

These three cars seem to be very different sizes but ...

The truth is that we are faced with Ponzo's illusion. This works because our brain judges the size of objects based on the perceived distance between them. The third car that we see in the image seems that it is much further away from the others so it seems to be much larger.

In the following gif you will see how the points seem to change color at the same time that they orbit around the compositional center, but if we focus our eyes on one and follow it we will discover that there is no type of rotation or color change.

If you look at the cross in the center of the animation below for a period of a few seconds, you will discover how the surrounding pink dots disappear.

In this park you see a three-dimensional grass globe, right?

Actually if we change the angle of our gaze, we will discover the following:

Which of these two orange circles is larger?

Well indeed, they are the same size.

This type of optical illusion is called Ebbinghaus and it explains our perception of objects and specifically their relative size. When an object is surrounded by larger things it appears smaller than it really is and vice versa.

If you stare at the yellow point in the center and then approach the screen, you will see how the pink rings move.

The Pinna-Brelstaff illusion occurs due to defects in peripheral vision.

Although it may be hard to believe, boxes A and B are the same color:

The demonstration? Here:

Our brain automatically adjusts to the color of the surrounding shadows. Since B is in the shadow of the green cylinder, but it is still the same color as A, the brain thinks it is a lighter shade of gray.

Watch this animated whirlpool for a few seconds and then look at the image below.

When observing the previous whirlpool our eyes work a lot and end up getting tired to the point that the static images come to life while our eyes recover.

The Ames Room offers us an illusion of perspective but in reality the shape of the room is trapezoidal and not square. The walls are sloping along with the floor and ceiling.

These blocks seem to move at a different rate right?

When the black bars are removed in the animation, we see that they actually go at the same speed. Parallel lines distort the perception of movement in our brain.

If you slowly approach this image it will appear that the light is getting brighter and brighter.

It is a dynamic gradient luminance effect discovered by Alan Stubbs.

Look closely at the center of the color version of this image, wait for it to change to the black and white version, and then you will see the color image.

Our brain retains for a time the colors to which it has been exposed, in this case the colors orange and blue.

All the dots that appear in this image are white, but some are black. The explanation for this optical illusion has not yet been explained.

Through sheets with black lines, Brussup is able to create animations.

The eyes of the following dinosaurs seem to follow us as we move in the direction we move.

The explanation is actually quite simple, the shape of the face of these dolls is hollow and has a concave shape although it seems to have a normal convex shape.

Akiyoshi Kitaoka harnesses the power of compositions with geometric elements, as well as brightness and color. The result is still images that appear to be moving.

Using similar techniques, Randolph is able to create illusions such as the following:

Through the double exposure effect it is possible to make portraits of people from two different perspectives in the style of Pablo Picasso.

In which direction does this subway run? Watch it for a while and then blink, your brain will change direction.

In what way do these three dancers turn?

The central woman rotates at the same time as those on the sides. If you look at the wrist on the right you will see how it moves in the opposite direction to the one located in the left area. If you look at the one in the center, however, you will see that they all move in the same direction.

These objects appear to be real and three-dimensional, although they are flat images.

Stare at the green dot for a few seconds and then blink. You will see that the yellow dots disappear and appear when you blink

The yellow dots never actually go away. Still images are quick to fall from our consciousness, especially when surrounded by constantly changing images.

It looks like a mask, right?

It is actually a couple kissing.

First you will think that you see three attractive women ...

Believe it or not, the two towers of Pisa are exactly the same and, although it seems that the one on the right is more inclined, it is not.

The horizontal lines appear to be sloping, but look long enough and you will see that they are parallel to each other.

These overlapping circles are actually perfectly round and don't touch each other

The water in Flathead Lake is so clear that it seems very shallow. Can you believe that it is actually 112 meters deep?

This is a simple photographic illusion, but very ingenious

This 3D painted room appears to have no floor:

If you cover the walls of the corridor with your hands and you will see how the speed of advance decreases. If you cover the center the speed increases.