Tag: Geometrical illusions
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Even though they seem to bulge inwards, the lines are perfectly straight and parallel t...
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Do the blue lines twist up and down like a water flow? This illusion is mainly due to l...
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You may see flashing horizontal flows... The illusion of flows occurs when we look at c...
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Can you perceive 6 triangles in this Kanisza-like figure? (Illusory figures.)
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The vertical and horizontal lines appear to tilt in this image
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In Akiyoshi Kitaoka's 'Waves', horzontal and vertical lines appear to tilt
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In this illusion, horizontal and vertical lines appear to tilt
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In Akiyoshi Kitaoka's 'Swirls', concentric circles appear to spiral
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In Akiyoshi Kitaoka's 'Hydrangea', vertical and horizontal edges appear distorted
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The oblique lines in this image are actually straight but appear to curve
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This ambiguous cube is either a tiled room or a cube
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In Akiyoshi Kitaoka's 'Barbaroa' horizontal and vertical edges appear distorted
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Move your mouse pointer over the image. A second 'monster' appears at the bottom. Compa...
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Compare the two tables in the neighbouring figure. How do size and shape of the two tab...
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In Akiyoshi Kitaoka's 'Bashful', horizontal and vertical lines appear to tilt
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This short video shows how the chair is laid out. Thanks to Frans Verstraten for the v...
This is a version of the well-known cafe wall illusion - but on a grand scale in Melbou...
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(a) The spiral illusion of the Café Wall illusion, in which grey concentric circles ap...
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The real life origin of the cafe wall illusion from a cafe in Bristol. The lines appear...
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This is a variant of the Hering illusion, from Akiyoshi Kitaoka. Click on Web Link and ...
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The cafe wall illusion, so called because the first time this illusion was spotted was ...
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An animated version of the cafe wall illusion
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Four variations of the Cafe Wall illusion: A, the standard Cafe Wall illusion; B, the c...
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This illusion is related to the cafe wall illusion. The middle grey line appears to sl...