The pumpkin appears to be reddish, though the pixels are not.pic.twitter.com/ovkC3SfE39
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A cognitive effect is exactly what I am referring to. Seeing the bluish pumpkin helps see what is determined on the perception level. It would be interesting to see if a cognitive/memory effect could produce a noticeable change in the intensity of of the illusory red.
This is a gray-scale image. Do you see the pumpkin reddish?pic.twitter.com/gY3INTBVUX
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