Light is an electro-magnetic wave characterised by two qualitative factors:brightness and colour. Although both are functions of energy and wavelength, brightness is a function of total energy, while colour is primarily dependent on wavelength discrimination. Traditionally two qualitative aspects of colour have been recognised: hue — the predominant wavelength of a spectral colour; and saturation — the amount of the predominant wavelength in the spectral distribution.
KeywordsColour Vision Visual Pigment Spectral Sensitivity Curve Anomalous Subject Normal Colour Vision
Unable to display preview. Download preview PDF.