ABSTRACT
SUMMARY A number of key conclusions have been drawn from the literature review: 1. Published values for peak sensitivity of the eye for the three types of colour-sensitive receptors (cones)
vary at least from 440nm to 498nm for the S-cones (short), 535 to 545nm for the M-cones (medium) and 564nm to 580nm for the L-cones (long). In the conventional model of vision, luminance information is derived from the summation of the signals from all three of these channels, while chrominance information is derived from the differences between them. The brain uses these chrominance signals to compute the sensation of colour.
