Illusion of lightness #6

since August 31, 2015


"A demo for lightness constancy"

The hair in the left image appears to be white and that in the right appears to be gray, though they are the same luminance.

Copyright Akiyoshi Kitaoka 2017 (February 5)


"White and black spades"

The left spade appears to be white whereas the right one black, though the former is darker in average luminance than the latter.

Copyright Akiyoshi Kitaoka 2016 (December 30)


Kitaoka, A. (2016). Spatial color mixture: RGB subtractive color mixture and CMY additive color mixture. Poster presentation at the 2016 Summer Meeting of the Vision Society of Japan, Toki-Messe, Niigata, Japan, August 18, 2016. Poster

Copyright Akiyoshi Kitaoka 2016 (August 28)


"Simultaneous brightness contrast with spatial color mixture"

The left circle appears to be whitish and the right one looks like black, though they are the same stripes of red and cyan.

Copyright Akiyoshi Kitaoka 2015 (September 26)



"Light flowers"

White parts appear to shine.

Copyright Akiyoshi Kitaoka 2015 (September 18)


"Black hair and black clothes versus white hair and white clothes"
(Anderson illusion)

One image shows a girl with black hair and black clothes while the other one with white hair and white clothes. Actually, the apparent black and white consist of the same pattern of grayscale.

Copyright Akiyoshi Kitaoka 2015 (September 5)


Hybrid




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"Black hair and black clothes versus white hair and white clothes"

(GIF animation)

One image shows a girl with black hair and black clothes while the other one with white hair and white clothes. Actually, the apparent black and white consist of the same stripes of black and white.

Copyright Akiyoshi Kitaoka 2015 (August 31)






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"Black hole versus white circle"

(GIF animation)

One image shows a black hole while the other one a white circle. Actually, the apparent black and white consist of the same stripes of black and white.

Copyright Akiyoshi Kitaoka 2015 (August 31)


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"Black hair and black clothes versus white hair and white clothes: Red and cyan"

(GIF animation)

One image shows a girl with black hair and black clothes while the other one with white hair and white clothes. Actually, the apparent black and white consist of the same stripes of red and cyan.

Copyright Akiyoshi Kitaoka 2015 (August 31)


Copyright Akiyoshi Kitaoka 2015 (August 18)

Kitaoka, A. (2015). Spatial color mixture and its relevance to the Munker illusion. Illusion Parade, 38th European Conference on Visual Perception (ECVP) (Liverpool), August 25, 2015. Presentation (html) --- Poster (doc)


Lightness illusion 5

Lightness illusion 4

Lightness illusion 3

Lightness illusion 2

Lightness illusion


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