Abstract
It has been clarified that luminance information is a critical cue for estimating freshness of vegetables. However, the effect of chromaticity information has not been well studied. Therefore, we conducted an experiment on freshness perception by manipulating chromaticity information of vegetables' images systematically with a color calibrated monitor. The results support the theory in which freshness perception of vegetables depends on only luminance information of the surface. On the other hand, it was suggested that unordinary surface color of vegetables modulates freshness perception in some case.
