土家织锦典型颜色光谱反射比的采集与色度分析  

Measurement and Analysis of Spectral Reflectance and Chromaticity for Tujia Brocade Color

作　　者：周章洋 杨晓莉[2,1] 朱瑜[1] 吴忠万 

机构地区：[1]湖北民族学院理学院,湖北恩施445000 [2]湖北民族学院科技学院

出　　处：《实验室研究与探索》2016年第11期39-43,共5页Research and Exploration In Laboratory

基　　金：国家民委资助项目(15067);湖北民族学院科技学院校级项目(KY201421);湖北民族学院大学生创新创业训练计划项目(2015Z003)

摘　　要：利用分光光度测色计,分别采集了现代织法和传统织法土家织锦的16种典型颜色色块的光谱反色比数据,以及相对应的纯棉线的光谱反射比数据,采用CIE色度计算方法,把光谱反射比值转换为色度值;通过光谱反射比空间和CIE L*a*b*颜色空间的数据分析比较,探讨纺织技法的不同所带来的颜色色差,建立土家织锦典型颜色光谱反射比特征数据库。分析结果显示,纺织技法的不同使得土家织锦的同种颜色棉线样品呈现出颜色差异性,彩色棉线纺织得越密集,其织锦样品的颜色与原彩色棉线的色差越小,两者之间的L*值a*值和b*值越接近。文中分析的纺织技法对织锦颜色的影响规律结论为文化遗产土家织锦纺织过程中的颜色准确配色提供了选择织法的理论依据,也为土家织锦数值化再现和颜色虚拟渲染提供了重要的颜色数据参考。The purpose of this study was to provide scientific and accurate color data reference for cultural heritage preservation,conservation and digital representation of Tujia brocade. The spectral reflectance of the 16 kinds of color of Tujia brocade was measured by spectrophotometric. Using the theory of CIE chromaticity calculation,the spectral reflection ratio was converted to chromatic value. In the spectral space and the color space,the analytical results explored the rule of how the weave techniques affected color different and spectral characteristic database of Tujia brocade typical color was established. As the textile was woven tighter,the color different becomes smaller,and the different of L^＊,a^＊and b^＊values was smaller. The finding of this paper provides a theoretical basis of textile methods for accurate color matching,and color data reference for representation and virtual rendering of Tujia brocade.

关 键 词：土家织锦 光谱反射比 颜色 CIE L^＊a^＊b^＊ 色差 

分 类 号：O433.5[机械工程—光学工程]