A program to produce an image of color illusion or to restore the original
image from a color illusion image by converting (compressing or extending)
the ranges of RGB-subpixel values
(RGB値のレンジを狭めたり広げたりすることで、色の錯視画像を作ったり、色の錯視画像の元の画像を復元したりするプログラム)
made by Akiyoshi Kitaoka, April 14, September 17, October 3, 13, November
12, 13, 26, 2022, June 11, 2023
Original image
eyedropper tool 色確認用
estimated modulation color (nonlinear)
estimated modulation color (linear)
Original R: -
G:
-
B: -
(manual imput)
Convert to R: -
G:
-
B:
-
linear transformation
倍率 x
CIE xy chromaticity diagram (CIE xy色度図)
triangle of the color gamut 色域の三角形の表示 White point (+) of sRGB (D65) 基準白色点 (D65) dot size
Shapiro, A., Hedjar, L., Dixon, E., & Kitaoka, A. (2018). Kitaoka's
tomato: Two simple explanations based on information in the stimulus. i-Perception,
9(1), January-February, 1-9. PDF (open access)
Note: renamed from compress-extend-histogram01f.html (April 14, 2022)