Mind-blowing new optical illusion baffles as it appears to change colour
Optical illusions are made to really hurt one's head.
No matter how many times you might look at something, it'll still leave you racking your brain.
And the latest brainteaser to hit the internet is going to do just that…
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Contact lenses specialists Lenstore produced the new optical illusion which shows multiple colours.
It's asking how many colours you can see – and the answer might just surprise you.
If you look closely, you can see that each row has different coloured lines running across the eyes which can trick you.
And according to Lenstore, there are only 5 colours in the image as all rows of eyes are identical copies.
The tint of the area around the lines depends on the colour used, for example, the blue line gives the original eye colour a blue tint.
This can cause our brain to perceive some fascinating colour changes which are not there.
Zooming into the image weakens the illusion, whereas if you don't it tends to make the effect stronger.
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Other online users experienced similar illusions no longer worked for them once they were trying to figure out how they work.
Meanwhile, some people could still see the colour changes when they look at the overall image.
Munker-White's illusion originally comes from White's illusion, which refers to the perceived lightness of a shape and was described by Psychologist Michael White in the 1960s.
For example, the same two grey rectangles appear to have lighter or darker shades of grey when placed next to white or black objects.
Sujata Paul, from Lenstore, said: "Munker-White's illusion works by placing a solid-coloured object behind bars of different colours, which influences the way we see them.
"It relies on changing the stripes in the foreground and still works even if the colour of the background is changed.
"This skewed perception of colour is caused by a phenomenon which is based on the Bezold effect, named after Professor Wilhelm von Bezold, who discovered that a colour may appear differently depending on its relation to adjacent colours.
"While some scientists believe that the illusion sets in during the early stages of visual processing, when the light first hits the retina, others think the effects happens later in the brain as it processes the data."
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