In our daily life, when we make quality discriminations such as deciding about freshness in fruits and vegetables, we rely greatly on visual cues. However, it remains unknown on which visual information this discrimination is based on. Here, we aim to find which visual cues affect our freshness perception. We took as samples the freshness degradation process of cabbages and strawberries and tested their freshness perception using psychophysical experiments. By digitally modifying the luminance histogram distribution of chromatic and achromatic images of both food textures, our results revealed the effects of luminance and color on their freshness perception.

Arce-Lopera, C. A., Masuda, T., Wada, Y., Okajima, K. (2009). Effects of Luminance and Color Information on the Perceived Freshness of Vegetable (1st ed., vol. 21, pp. 67-68). Journal of the Vision Society of Japan.

Check out the Conference Proceedings