From: Gamut relativity: A new computational approach to brightness and lightness perception
Journal of Vision. 2013;13(1):14. doi:10.1167/13.1.14
Figure Legend:
Simulation of lightness matching in the staircase Gelb effect. (A) For each square in the staircase Gelb series, the
simulation procedure selects from amongst all Munsell chips the one closest in blackness–whiteness space to the given
square. Anchoring: Each square, when first presented, appears a shade of white and is matched to the Munsell chip of
highest reflectance (red line). Gamut compression: When presented together, the same squares appear compressed
relative to the Munsell scale (blue line). Decompression: The introduction of a white background surrounding the
staircase Gelb series eliminates the compression effect (yellow line). (B) Corresponding points in blackness–whiteness
space.
The black7/31/2017
points represent colors
in the Munsell
series. Anchoring:
The
Munsell series
lies on ©a 2017.
different
gamutreserved.
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of download:
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line in blackness–whiteness space due to the higher illumination intensity and the different background associated with