KATE Garraway has left fans baffled after she shared an optical illusion that some called “unbelievable.”
The Good Morning Britain presenter, 52, shared an image of two blocks on top of each other that appear to be completely different shades of grey.
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People were baffled by this optical illusion showing two blocks that look different but have the same shade of gray Credit: Instagram
However, the blocks are actually the exact same shade, which becomes apparent when you place your finger on the white space between them.
The two blocks look different only because of the darker and lighter shading effect in the middle.
Kate took to Instagram yesterday to share the mind-blowing illusion, captioning it: “This caused quite a stir at our house tonight…”
The 588,000 followers of the I’m a Celebrity…Get Me Out of Here star were equally captivated by the optical illusion and were quick to share their thoughts.
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Good Morning Britain presenter Kate Garraway shared the optical illusion with her 588,000 followers on Instagram Credit: Rex Features
One wrote: “This is amazing,” while another added: “OMG this is amazing. Your eye can play tricks like that.”
Another added: “Oh that’s so weird.”
The confusion stems from something known as the Cornsweet illusion, first observed by psychologist Tom Cornsweet in the 1960s.
WHAT IS THE CORN ILLUSION?
Depending on how the object is lit and how the shadows fall, shading can be perceived in different ways.
We perceive the upper block as darker and the lower block as lighter because our brain expects it due to the image environment.
We see this because the blocks appear tilted, with light shining from the upper left corner.
This results in the top block being lit and the bottom block being in shadow.
If you combine this effect with contrasting shading between the blocks, the top looks dark and the bottom looks bright.
Tom discovered that people perceive the shadow and color of 3D objects differently, depending on how the shadows fall.
Many people see the top block as a darker gray, and this is due to logic and what our brain expects to see, given the environment.
The light appears to come from the upper left corner of the image and the two blocks appear tilted to one side, so we see the upper block illuminated and the other in shadow.
Added with contrasting shading between the two blocks, we see the top dark and the bottom light.
We also share an awesome optical illusion that makes you see a black and white image in color.
And the sick optical illusion of ‘Chunder Thunder’ makes the image of a storm-battered ship appear to be tumbling.
Meanwhile, another image tricks you into seeing a black woman on the wall using a clever “brain trick.”
Explanation of how optical illusions trick your brain
Categories: Optical Illusion
Source: newstars.edu.vn