一种低光照度下的彩色数码设备色彩还原能力评价方法  

Evaluation method of color restoration ability of color digital equipment under low illumination

作　　者：王晓岩 李野[1] 岳丹 WANG Xiao-yan;LI Ye;YUE Dan(School of Natural and Applied Science,Changchun University of Science and Technology,Changchun 130022,China)

机构地区：[1]长春理工大学理学院,吉林长春130022

出　　处：《液晶与显示》2020年第5期477-485,共9页Chinese Journal of Liquid Crystals and Displays

基　　金：吉林省教育厅“十三五”科学技术项目(No.JJKH20190576KJ);吉林省科技厅重点项目(No.20180201034GX);长春理工大学青年科学基金(No.XQNJJ-2018-01)。

摘　　要：彩色数码设备色彩还原能力直接影响彩色图像的最终呈现效果,是彩色数码设备性能设计优劣的一个重要指标。为研究低光照度下不同彩色数码设备的色彩还原能力,本文提出了一种简便快捷的可视化客观色彩还原能力评价方法,该方法首先将RGB三基色颜色空间转换到CIELAB颜色空间,并基于CIEDE2000色差公式在CIELAB颜色空间建立全面客观的量化评价指标,最终基于VC++软件平台开发了上位机软件程序,能实现对彩色数码设备的色彩还原能力的现场评价。实验结果表明,该评价方法与主观视觉感受吻合较好,能为低光照度环境下的彩色数码设备色彩还原能力提供一种有效的评价方法。The color reproduction capability of the color digital devices directly affects the final rendering effect of color images,and is an important indicator of the performance design of the color digital devices.In order to study the color reproduction ability of different color digital devices under low light,a simple and fast visual objective color reproduction ability evaluation method is proposed.This method firstly converts the RGB three-primary color space to CIELAB color space,and establishes a comprehensive and objective quantitative evaluation index in the CIELAB color space based on CIEDE2000 color difference formula.Finally,a host computer software program is developed based on the VC++software platform,which can realize the on-site evaluation of the color reproduction ability of color digital equipment.The experimental results show that the evaluation method is in good agreement with the subjective visual perception,and can provide an effective evaluation method for the color reproduction ability of color digital devices in a low light environment.

关 键 词：彩色数码设备 低光照度 色差 色彩还原能力 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]