缅甸金珀、棕珀和血珀颜色表征的研究  

Study on the Color Characterization of Myanmar Gold Amber,Brown Amber and Blood Amber

作　　者：张万才 白莹 ZHANG Wancai;BAI Ying(West Yunnan University Of Applied Sciences,Tengchong 679100)

机构地区：[1]滇西应用技术大学珠宝学院,腾冲679100

出　　处：《中国宝玉石》2023年第6期2-11,共10页China Gems & Jades

基　　金：云南省高校宝石及材料工艺工程研究中心研究项目(ZX20200104)、滇西应用技术大学校级科研项目(2023XJKY0001)资助。

摘　　要：本文采用PS取色法和色品坐标转换法对缅甸金珀、棕珀和血珀进行颜色表征的研究。通过两种方法获取样品的颜色三刺激值RGB,将其代入取色器工具,得到对应的颜色,并制作成色卡,然后与样品局部制成的色卡作比较分析,结果表明,PS取色法所得色卡颜色匹配度优于色品坐标转换法,色品坐标转换法更适合用于缅甸金珀、棕珀和血珀的颜色表征。将实验数据制成图表,分析可得:PS取色法下实验样品三刺激值大致值域为:R_(JP)=[142,154];G_(JP)=[137,164];B_(JP)=[50,62]。R_(ZP)=[49,139];G_(ZP)=[63,118];B_(ZP)=[29,76]。R_(XP)=[63,168];G_(XP)=[46,132];B_(XP)=[33,62]。色品坐标转换法下测得实验样品三刺激值大致值域为:R_(JP)=[156,158];G_(JP)=[84,90];B_(JP)=[9,13]。R_(ZP)=[139,172];G_(ZP)=[57,107];BZP=[4,48]。R_(XP)=[184,199];G_(XP)=[42,60];B_(XP)=[6,29]。PS取色法下,缅甸金珀、棕珀和血珀颜色三刺激值间的大小关系为:R_(AJP)>R_(AXP)>R_(AZP);G_(AJP)>G_(AZP)>G_(AXP);B_(AJP)>B_(AZP)>B_(AXP)。色品坐标转换法下,缅甸金珀、棕珀和血珀颜色三刺激值间的大小关系为:RB_(XP)>RB_(JP)>R_(BZP);GB_(JP)>G_(BZP)>GB_(XP);B_(BZP)>BB_(XP)>BB_(JP)。This paper uses PS color selection method and chromaticity coordinate conversion method to study the color characterization of Myanmar gold amber,brown amber,and blood amber.Obtain the color tristimulus value RGB of the sample through two methods,substitute it into the color picker tool,obtain the corresponding color,and make a color card,and then compare and analyze it with the color card made partially from the sample.The results show that the color matching degree of the color card obtained by the PS color picking method is better than the chromaticity coordinate conversion method,and it is more suitable for the color characterization research of Myanmar gold amber,brown amber and blood amber than the chromaticity coordinate conversion method.Make the experimental data into a chart and analyze it:the approximate range of the tristimulus value of the experimental sample measured under the PS color extraction method is:R_(JP)=[142,154];G_(JP)=[137,164];B_(JP)=[50,62].R_(ZP)=[49,139];G_(ZP)=[63,118];BZP=[29,76].R_(XP)=[63,168];G_(XP)=[46,132];B_(XP)=[33,62].The approximate range of the tristimulus value of the experimental sample measured under the chromaticity coordinate conversion method is:R_(JP)=[156,158];G_(JP)=[84,90];B_(JP)=[9,13].R_(ZP)=[139,172];G_(ZP)=[57,107];BZP=[4,48].R_(XP)=[184,199];G_(XP)=[42,60];B_(XP)=[6,29].Under the PS color selection method,the relationship between the three stimulus values of Myanmar gold amber,brown amber and blood amber is:R_(AJP)>R_(AXP)>R_(AZP);G_(AJP)>G_(AZP)>G_(AXP);B_(AJP)>B_(AZP)>B_(AXP).Under the chromaticity coordinate conversion method,the relationship between the three stimulus values of Myanmar gold amber,brown amber and blood amber is:RB_(XP)>RB_(JP)>R_(BZP);GB_(JP)>G_(BZP)>GB_(XP);B_(BZP)>BB_(XP)>BB_(JP).

关 键 词：缅甸琥珀 色度学 光纤光谱仪 PS取色法 三刺激值 

分 类 号：P578.98[天文地球—矿物学]