Blur & picture content
Painting “All is Vanity” by Charles Allen Gillbert (1873-1929). Place
mouse over image and observe the change.
Comments
This is not an “optical illusion” proper, it’s more a physical
effect: With the strong spatial low-pass filtering, the blurred version simply lacks
the fine details. However, one could also argue that the low-spatial frequency information
is masked by high spatial frequencies like in the“Lincoln
effect” by Harmon & Julesz (1973) “The recognition of faces”.
Related paintings are depicted below; feedback educating me on the unknown sources
is welcome.
Sources
I owe the original slide to Prof. Mackensen.
Interesting background on skulls in culture & art
Def Leppard album ‘RetroActive’
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Wotherspoon ‘Gossip, and Satan came also’
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Wotherspoon ‘Society,
a portrait’
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Dali ‘Voluptate Mors’ (Photo: Halsman)
[Orwell on Dali]
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Dali ‘Ballerina’
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Cher, album ‘Heart of stone’
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‘L'Amour de Pierrot’ ≈1905
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Au revoir!
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‘La famille Impériale de Russie’ (French post card ≈1908)
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Cat or Couple? (unknown)
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French postcard
(on Planet Perplex)
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Judge Magazine cover, 1894 “Death to our industries!”
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Created: 1999-06-13
Last update: 2013-10-04