| 宋得瑞,张方辉,强博文.基于光谱分析的高精度颜色测量系统[J].光电子激光,2016,27(7):742~747 |
| 基于光谱分析的高精度颜色测量系统 |
| High accuracy color-measuring system based on spectrum analysis |
| 投稿时间：2016-01-11 |
| DOI： |
| 中文关键词: 颜色测量 光源均匀性 亮度色度计 光谱分析 |
| 英文关键词:color measurement uniformity of light source luminance colorimeter spectrum a nalysis |
| 基金项目:国家自然科学基金(61076066)、陕西省科技统筹创新工程计划(2011KTCQ01-09)、陕西科技大学博士基金(BJ09-07)和陕西科技大学自然科学基金(ZX09-31)资助项目 , 强博文 (陕西科技大学 电气与信息工程学院,陕西 西安 710021) |
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| 中文摘要: |
| 为解决颜色测量过程中光源分布不均匀、外界环 境光影响和测试结果误差大等问题,提 出并实现一套在稳定均匀光源下的高精度颜色测量系统。系统主要由标准光源对色灯 箱、PR-670 亮度色度计及测色软件3部分组成。对市售标准光源对色灯箱进行了整体重建与 升级改进, 通过安装棱镜板、扩散板等装置,提供稳定且均匀的光源；应用PR-670 亮度色度 计精确获得被测颜色的色度、三色刺激值、光谱、色坐标和亮度等,其中色坐标的精确度 达到10－4；通过LabVIEW开发的测色软件将参数显示、搜集并综合比较,支 持数据读写功能,得 出被测颜色的色彩本质属性。实验结果表明,被测颜色物体在一般的标准光源对色灯箱内, 随着位置的 不同色坐标存在较大差异,其X、Y方差为Sx=3.40046×10－5,Sy=4.73875×10－5。在改进后的灯箱内部, 色坐标较为密集、稳定,其X1、Y1方差为Sx1=8.18249×10－6,Sy1=1.59099×10－5 。通过对比可知,本文系统较大提高光源分布均匀性,缩小测试误差,实 现了仪器的自动化控制。 |
| 英文摘要: |
| In order to solve the problem of the nonuniform light,reduce the infl uence from environmental light and decrease data error from the artificiality,a color measurement system is proposed and made under stable and uniform light.This system consists of th e standard light box,the luminance colorimeter (Spectrum Scan PR-670) and the color measurement software.The stan dard light box is developed more than its original version so that more uniform light can be generated and supported by changing the shape of it,setting the diffusion plate and light guide plate,adj usting the light position and so on. Utilizing luminance colorimeter PR-670,high accuracy parameters about color ar e tested,such as chroma, tristimulus value,spectrum,color coordinates,luminance and so on,and color c oordinates have high precise of 10－4.By combining with color meas urement software,all sorts of parameters are collected and analyzed from different aspects.And the software can support writing and reading data ab out color,and data and pictures about the color can be saved.The nature of color is got by using this system fin ally.The experimental results demonstrate that when the color is tested in the original standard ligh t box,the color coordinates of it are very different with changing its places,and Sx=3.40046×10 －5,Sy=4.73875×10－5;when the color i s tested in the developed standard light box that,to some extent the color coordin ates are dense,and Sx1=8.18249×10－6, Sy1=1.59099×10－5.This kind of color sys tem can improve the light uniformity,get high accuracy parameters,reduce error ,and realize the automation control. |
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