光学学报, 2020, 40 (16): 1633001, 网络出版: 2020-08-07
LED原色光谱对颜色匹配精度的影响分析 下载: 1063次
Influence of LED Primary Colors on Color Matching Accuracy
视觉 视觉色彩 原色光谱 颜色匹配函数 颜色匹配精度 观察者间差异 vision color vision primary colors color matching functions color matching accuracy observer variability
摘要
为研究基于不同原色光谱的显示设备对观察者颜色匹配精度和观察者间差异的影响,实验选取了6通道(R1R2G1G2B1B2)LED发光面板,并组合为4种RGB匹配原色光谱。组织了24名年龄分布在21~25岁的色觉正常观察者,以NEC-PA242W专业显示设备上呈现的6个颜色(包括白色和CIE推荐的5个颜色)为目标色开展颜色匹配实验,共采集到720个数据。用CIE1976 u'v'色品参数对颜色匹配精度进行分析,结果表明:不同观察者基于636 nm-524 nm-452 nm组合得到的配色精度更高,Δ(u', v')值为0.0062;基于636 nm-524 nm-472 nm组合得到的配色准确性较差,Δ(u',v')值为0.0084。用观察者匹配颜色的u'v'值协方差逆矩阵参数构建观察者差异色度椭圆,基于636 nm-524 nm-452 nm组合得到的椭圆平均尺寸最小,为0.0055;636 nm-508 nm-452 nm组合最大,为0.0094。结果表明,颜色匹配精度和观察者间的差异,受红通道影响较小,受蓝通道和绿通道的峰值波长位置影响较大。
Abstract
In order to investigate the influence of different primary colors on observers’ color matching accuracy and observer variability, LED-Panel with 6 channels (R1R2G1G2B1B2) was employed and 4 corresponding combinations with different RGB primary colors were generated. 24 observers (aged from 21 to 25) with color normal vision were organized to carry out the color matching experiment. There are 6 colors, including white and 5 CIE recommended colors were displayed on NEC-PA242 professional display as target colors, and in total, 720 sets of data were collected. CIE 1976 u'v' chromaticity values were used to analyze the color matching accuracy. The results indicated that higher accuracy was occurred in the combination of 636 nm-534 nm-452 nm,with Δ(u', v') value of 0.0062, while the accuracy was poor based on 636 nm-524 nm-472 nm, with Δ(u', v') value of 0.0084. The observer's covariance chromaticity ellipses were constructed using the inverse covariance matrix parameters of u'v' value of the observers’ matching data. The results showed that based on the combination of 636 nm-524 nm-452 nm, the average size of the ellipse was the smallest (S=0.0055) and the largest size was occurred in the combination of 636 nm-508 nm-452 nm (S=0.0094). The color matching accuracy and the observer variability were less affected by the red channel, and more affected by the peak wavelength positions of the blue and green channels.
郭春丽, 黄敏, 习永惠, 潘洁. LED原色光谱对颜色匹配精度的影响分析[J]. 光学学报, 2020, 40(16): 1633001. Chunli Guo, Min Huang, Yonghui Xi, Jie Pan. Influence of LED Primary Colors on Color Matching Accuracy[J]. Acta Optica Sinica, 2020, 40(16): 1633001.