Assessment of the visual effectiveness of chromatic signals for CRT colourmonitor stimuli

On the basis of signal theory, we analyse the different information content of colour stimuli that correspond to variations along the red-green and ye llow-blue channels (or chromatic signals). The experimental results for sti muli generated by two CRT colour monitors and extended to handmade samples show a higher chromatic contrast when pairs of stimuli are generated by red -green variations than by yellow-blue variations. This information should b e taken into account in such applied areas as colour reproduction, image pr ocessing, colour displays, and computer graphic design, which use chromatic information based on human chromatic perception in order to achieve a more effective presentation of colour information. (C) 2000 Elsevier Science B. V. All rights reserved.