The latest works 58

since March 14, 2016


"Color change of apparent reddish strawberries"

Strawberries appear to be reddish, though the pixels are not.

Copyright Akiyoshi Kitaoka 2017 (March 16)

(additive color change)



A large shift


"Color change of apparent reddish strawberries"

Strawberries appear to be reddish, though the pixels are not.

Copyright Akiyoshi Kitaoka 2017 (March 16)

(two-color method)



A large shift


"Color change (normal type) of reddish strawberries"

Strawberries appear to be reddish and the pixels are indeed reddish.

Copyright Akiyoshi Kitaoka 2017 (March 16)

(multiplicative color change)



A small shift


"Color change of apparent bluish strawberries"

Strawberries appear to be bluish, though the pixels are not.

Copyright Akiyoshi Kitaoka 2017 (March 16)

(additive color change)


"Algae"

Parallel blocks appear to tilt alternately.

Copyright Akiyoshi Kitaoka 2017 (February 4)


"Stamps that are hard to be detached"

Copyright Akiyoshi Kitaoka 2017 (January 28)



"Freely detachable stamps"

Copyright Akiyoshi Kitaoka 2017 (January 28)



"Subjective color spirals"

Illusory spirals of subjective color are observed.

Copyright Akiyoshi Kitaoka 2017 (January 21)



"White heart and yellow heart"

The left heart is constantly white and the right one is yellow, but the reversal is observed for one second per four seconds when observers fix their eyes on the cross.

Copyright Akiyoshi Kitaoka 2016 (October 17)




and


---



"White heart and yellow heart"

The left heart is constantly white and the right one is yellow, but the reversal is observed for one second per six seconds when observers fix their eyes on the cross.

Copyright Akiyoshi Kitaoka 2016 (October 17)




"White heart and yellow heart"

The left heart is constantly white and the right one is yellow, but the reversal is observed for one second per six seconds when observers fix their eyes on the cross.

Copyright Akiyoshi Kitaoka 2016 (October 17)




"blue spade and black spade"

The left spade is constantly blue and the right one is black, but the reversal is observed for one second per six seconds when observers fix their eyes on the cross.

Copyright Akiyoshi Kitaoka 2016 (October 19)

Copyright Akiyoshi Kitaoka 2016 (October 19)

Copyright Akiyoshi Kitaoka 2016 (October 19)


"Mud volcano"

The inner area appears to expand whereas the outer area appears to contract.

Copyright Akiyoshi Kitaoka 2016 (September 5)



"Devil"

Eyes appear to scintillate.

Copyright Akiyoshi Kitaoka 2016 (August 29)


"Ellipse illusion"

The lower ellipse appears to be slimmer than the upper one, though they are the same shape.

Copyright Akiyoshi Kitaoka 2016 (May 21)




"Ellipse illusion enhanced by the Shepard illusion (table-top illusion)"

The lower ellipse appears to be slimmer than the upper one, though they are the same shape.

Copyright Akiyoshi Kitaoka 2016 (May 21)


"Illusory red dots"

Illusory reddish dots appear in white circles.

Copyright Akiyoshi Kitaoka 2016 (April 2)


"Illusory blue dots"

Illusory bluish dots appear in white circles.

Copyright Akiyoshi Kitaoka 2016 (April 2)



"Munker illusion can be explained with additive color mixture of spatial color mixture"

Copyright Akiyoshi Kitaoka 2016 (March 22)




"Munker illusion can be explained with subtractive color mixture of spatial color mixture"

Copyright Akiyoshi Kitaoka 2016 (March 22)


"Staircase and columnar joint"
(special view of the Schröeder staircase)

Perception of a staircase sometimes alternate with that of a columnar joint.

Copyright Akiyoshi Kitaoka 2016 (March 18)



"Staircase and the back of staircase"

Copyright Akiyoshi Kitaoka 2016 (March 18)



"F and inverted F"

Copyright Akiyoshi Kitaoka 2016 (March 18)



"Dangerous staircase and anomalous columnar joint"

Copyright Akiyoshi Kitaoka 2016 (March 18)


"Mona Lisa with CMY additive color mixture and Mona Lisa with RGB subtractive colot mixture"

The technique that additive color mixture is formed with CMY and subtractive one is made with RGB has been established!

Copyright Akiyoshi Kitaoka 2016 (March 13)

lineart08random_ex_linear.exe



"Girl with white hair and white clothes and girl with black hair and black clothes: RGB"

The apparent white hair and apparent white clothes (left) are the same as the apparent black hair and apparent black clothes (right). They consist of red, green and blue stripes. This difference in appearance depends on the difference whether the image reflects additive color mixture or subtractive one.

Copyright Akiyoshi Kitaoka 2016 (March 13)



"Girl with white hair and white clothes and girl with black hair and black clothes: CMY"

The apparent white hair and apparent white clothes (left) are the same as the apparent black hair and apparent black clothes (right). They consist of cyan, magenta and yellow stripes. This difference in appearance depends on the difference whether the image reflects additive color mixture or subtractive one.

Copyright Akiyoshi Kitaoka 2016 (March 13)



"Girl with white hair and white clothes and girl with black hair and black clothes: RGB (1 pixel wide)"


"Girl with white hair and white clothes and girl with black hair and black clothes: CMY (1 pixel wide)"




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