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Wait, so is this optical illusion straight or curved?

Who doesn't love a good optical illusion? Whether you're into rotating horses or topsy-turvy celebrities (both of which we've seen recently), there's something for everyone in the wacky and wonderful world of mind-benders.

Today's perplexing find is all about geometric shapes and colours. At first glance, it looks as though this example features many rows of curved and angular lines, but the closer you look, you soon realise that each line's curviness is dependent on what colour background it's on. And if you solve this brain-boggler and fancy delving deep into some more illusions, then make sure you check out our round-up of our favourite optical illusions

The Curvature Blindness Illusion

Are the lines curved or straight? (Image credit: Kohske Takahashi)

The baffling design was created by artist Kohske Takahashi (opens in new tab), who has aptly named this brain-frazzler the Curvature Blindness illusion. The illusion was created to get a better understanding of the brain and the eye perceives curves in different scenarios. 

Takahashi explains, "The low curvatures are perceptually replaced by the obtuse corners, it postulates that the underlying mechanisms of the curve and corner perception could not be independent, but rather would interfere or compete with each other". 

The Coffer illusion

It reminds me of the illusion where there were squares and circles in one. (Image credit: Anthony Norcia)

This baffling design reminds me of the optical illusion we saw recently where there were 16 hidden circles among many monochrome rectangles (see above). It's also similar to the accidental illusion where all the lines ended up looking as if they had melded together. 

I've spent too much time staring at this illusion now, trying to work out if the lines are curved or straight. If you need to refresh the palette then why not check out our roundup of the best Trompe L'oeil illusions. Or if you'd like to have a go at making your own, then make sure you have a look at our guide on how to create a 3D optical illusion

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Amelia Bamsey
Amelia Bamsey

Amelia is Creative Bloq’s Staff Writer. After completing a degree in Popular Music and a Master’s in Song Writing, Amelia began designing posters, logos, album covers and websites for musicians. She now enjoys covering a range of topics on Creative Bloq, including posters, optical illusions, logos (she's a particular fan of logo Easter eggs), gaming and illustration. In her free time, she relishes in the likes of art (especially the Pre-Raphaelites), photography and literature. Amelia prides herself on her unorthodox creative methods, her Animal Crossing island and her extensive music library.