基于色彩空间变换的电润湿电子纸色彩校正  

Color correction of electrowetting electronic paper based on color space transformation

作　　者：毛文杰 林珊玲 林坚普 梅婷 王廷雨 蔡苾芃 张建豪 林志贤[1,2] Mao Wenjie;Lin Shanling;Lin Jianpu;Mei Ting;Wang Tingyu;Cai Bipeng;Zhang Jianhao;Lin Zhixian(School of Advanced Manufacturing,Fuzhou University,Quanzhou,Fujian 362252,China;Fujian Science and Technology Innovation Laboratory for Photoelectric Information,Fuzhou,Fujian 350116,China)

机构地区：[1]福州大学先进制造学院,福建泉州362252 [2]中国福建光电信息科学与技术实验室,福建福州350116

出　　处：《光电工程》2025年第2期31-43,共13页Opto-Electronic Engineering

基　　金：国家重点研发计划(2021YFB3600603)。

摘　　要：电润湿电子纸采用减色混色系统进行色彩显示,色域较小,容易发生色彩失真,且依赖环境光的漫反射,亮度不足。为解决这些问题,提出一种基于彩色电润湿的色彩空间转换和图像自适应增强算法。该算法将图像从RGB色彩空间转换到HSV空间,并使用CLAHE对饱和度进行均匀分布处理,改善色彩表现。亮度通道通过引导滤波和改进的Retinex算法进行增强,保留细节与边缘信息,使电润湿电子纸在相同光照下依旧保持真实视觉效果。实验结果表明,该算法在PSNR、SSIM、FSIM和FSIMc上分别提高了19%、10.8%、19.19%和19.54%,显著优化电润湿电子纸的显示效果,为其市场化应用提供有力支撑。Electrowetting electronic paper employs a subtractive color mixing system for color display,which results in a smaller color gamut and potential color distortion.Additionally,it relies on ambient light's diffuse reflection,leading to insufficient brightness.To address these issues,this paper proposes a color space transformation and image adaptive enhancement algorithm for color electrowetting.The algorithm converts the image from the RGB color space to the HSV space,using CLAHE to evenly distribute saturation and improve color performance.The luminance channel is enhanced through guided filtering combined with an improved Retinex algorithm,preserving detail and edge information,and ensuring the electrowetting display maintains realistic visual effects under the same lighting conditions.Experimental results show that the algorithm improves PSNR,SSIM,FSIM,and FSIMc by 19%,10.8%,19.19%,and 19.54%,respectively.This algorithm significantly enhances the display performance of electrowetting electronic paper,laying a solid foundation for its commercialization.

关 键 词：彩色电润湿电子纸 色彩空间变换 图像增强 直方图均衡 

分 类 号：TN27[电子电信—物理电子学]