If we can reproduce the given colors accuately on a general computer VGA monitor

the computer display system will become a convenient and cheap tool for the research in the fields of chromatics

color vision

printing and dyeing.For this reason

the color space of computer display sysrem should be calibrated first.Meanwhile

the major difficulties are the nonlinear feature involved and the interaction among R

G and B channels of the display system.We investigated the tricolor interaction rules on several different models of monitors

then proposed the formula and parametric calibrating method so that given color can be displayed on VGA monitors without any need of human intervention.This will provide a good base for the widespread application of this approach- Experiments have proved that the approach proposed in this paper can substantially decrease the color difference between the given color and displayed color on screen to a degree acceptable for real use.