optical illusion -> οπτική απάτη, οφθαλμαπάτη, οπτική ψευδαίσθηση

spiros · 11 · 2434

spiros

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Optical illusion

The squares marked A and B are the same shade of gray

Explanation
« Last Edit: 28 Nov, 2013, 11:50:00 by spiros »


Frederique

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Ήδη το δοκιμάζω στο Photoshop... :-) Πολύ καλό! Για ευχάριστη ενασχόληση με τις ώρες...
Communicate. Explore potentials. Find solutions.



Vion

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F means me when she says "δοκιμάζω"
Λοιπόν, Photoshop says 121 / 121 / 121 (rgb) for square A and 120 / 120 / 120 for square B
Analytically each square contains a range rather than a continuous shade: A: 118 - 126 and B: 116 - 121 ...so tricky, but they are very, very close  :-)
« Last Edit: 09 Jan, 2013, 11:08:59 by spiros »


spiros

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Vion

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Right. It's funny, but square A, according to my measurement, is actually lighter than square B.


spiros

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diceman

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You could easily make some money with this, Spiros, asking people to bet on the lighter square!
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spiros

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Λες; Πολυκαίρισε πλέον το «εδώ παπάς, εκεί παπάς, πού 'ν' ο παπάς». Καιρός για κάτι καινούριο.


evdoxia

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Παιδιά αποκλείεται να έχουν την ίδια απόχρωση του γκρίζου!
Translation is the art of failure – Umberto Eco




 

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