In¨uence of Di•erent Backgrounds on the Instrumental Color Speci¤cation of Orange Juices

Color can be de¤ned as a mental response to the stimulus that a visible radiation produces on the retina, which is transmitted to the brain by the optical nerve. Ÿe perception of color is a psychophysical phenomenon, linked to the psychology of the observer, the physiology of vision, and the spectral radiant energy of a source of light (Wyszecki and Stiles 1982).