28 December 2001 Factors effecting lightness partitioning
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Abstract
Three simultaneous equisection or partitioning experiments were conducted to further investigate the perception of lightness. Previous results derived a series of curves and a function relating the lightness of a uniform background with the perceived lightness of a stimulus. These results were specific to a CRT in a dark surround. This paper extends the previous results by testing three other factors. The first experiment varied the stimuli spacing, the second experiment varied the background uniformity and the third experiment tested the ambient illumination. The results show that the crispening effect and simultaneous contrast are reduced by either changing the stimuli spacing and the background uniformity. The result of changing the ambient illumination is consistent with the surround effect incorporated into various color appearance models.
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Nathan Moroney, Nathan Moroney, } "Factors effecting lightness partitioning", Proc. SPIE 4663, Color Imaging: Device-Independent Color, Color Hardcopy, and Applications VII, (28 December 2001); doi: 10.1117/12.453011; https://doi.org/10.1117/12.453011
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