以色度学HSL颜色空间模型为理论基础,在标准光源5500 K下,通过工业摄像头对绿色翡翠样品颜色进行采集并输入到计算机中.运用RGB-HSL颜色转换公式,对每个样品图像颜色进行HSL值分析,然后将所得到的HSL数值按不同绿色色调角投点到二维HSL图像上,最终得到不同绿色翡翠的颜色阈值区间.根据这些参数值确定了绿色翡翠样品颜色的H值分类,S值及L值的定量分级,为建立HSL颜色空间模型的计算机绿色翡翠颜色分级奠定基础.%The color of jade is one of the important linkages for evaluation of quality and value of jade. In re-cent 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.Because the academic evaluation of jade color is based on various kinds of instrument indexes,while the complex application of such instrument indexes makes it difficult to be promoted in the market. That is the reason for the embarrassed situation at present,and that is also one of the main objectives for the author to conduct this study. The hue,saturation and values 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,proved that the computer programs about green jade's color classifica-tion is feasible.
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