【摘要】 在彩色宝石的质量分级中,颜色是最重要的评价标准。运用Photoshop图形处理软件,对世界著名产地的蓝色蓝宝石进行颜色测试,确定其H,S,B值,进行了颜色分级。讨论了影响颜色分级的因素及存在的问题,提出了解决方案。更多还原

【Abstract】 Colour is the most important standard in grading of coloured stone. The aim of this paper is to carry out the colour grading of the blue sapphires from the famous localities in the world according to their values of H, S, B determined by means of Photoshop Microsoft. The influence factors on the colour grading and the problems are discussed and the proposals how to resolve these problems are also put forward.更多还原