Abstract

• Human eye is able to capture all wavelengths in the range 250-780 nm • Eye sensitivity depends on the wavelength: for a given energy level, the radiation is perceptually received as more or less intense depending on λ • The colour is a function of the wavelength and of the energy that it emits or reflects • Two receptors: retinal cones and rods. Cones are more sensitive to wavelength, rods to energy Pag. 2 Video coding