关键词: HSL颜色模型;绿色翡翠颜色分级;计算机颜色分级

Abstract: The color of jade is one of the important linkages for evaluation of quality and value of jade.In recent years, many scholars have carried out various kinds of researches on the evaluation of jade color and have made certain achievements in respect of academic aspect.However, it is not difficult to find out that although the experts and scholars have made certain academic achievements on the evaluation of jade color, such achievements have obviously not been applied or promoted in the market.We hope that through this study to find a simple and quick method of grading the jade color.Through this research the hue, saturation and valueuses of green jade can be described by HSL color model, and the practice based on the theoretical basis, through the analysis of green jade color for a series of data classification and programming, and confirmed by visual sensory and Gemdialogue color grading test for green jade sample.Finally, proved that the computer programs about green jade''s color classification is feasible.

Key words: HSL color space model;green jade color grading;computer color grading