TECH

These Inversion Face Optical Illusions Will Blow Your Mind

08/02/2016 14:40 | Updated 10 February 2016

'Inversion' is a powerful optical illusion which suggests that, when an edited image of a face is seen upside down next to the original, both will look the same. Place both pictures the right way up, though, and the edited image will stand out like a sore thumb.

According to a study by Sainsbury Wellcome Centre: "Our perception of human faces most likely consists of two distinct processes. The first is local processing of individual facial features such as the mouth, nose, and eyes. The second is global processing of the relationship between these features. These processes are incredibly sensitive and effective, but seem to struggle when faces are seen upside down."

The theory was tested out in a 1980 by Peter Thompson with the 'The Thatcher illusion' and is now a widely published paper.

ricky gervais

When the two images are viewed upside down, they appear to look similar at first glance but, when viewed the correct way, you can clearly see the difference between the two images (see the sliding image below).

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So we thought we'd give the process a try and the results are incredible.

Piers Morgan
piers upsdie

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David Beckham
david beckham

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Katy Perry
katy perry

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Donald Trump
donald trump

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Susanna Reid
susanna reid

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Tom Hardy
tom hardy

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Kanye West
kante west

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Lupita Nyong'o
lupita nyongo

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Harry Styles
harry styles

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Beneditch Cumberbatch
cumberbatch

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Queen Elizabeth II
the queen

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James Corden
james corden

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David Cameron
david cameron

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JK Rowling
rowking split

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Justin Bieber
justin bieber

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