| 电子书阅读器文字显示质量评价方法研究 |
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| 引用本文： | 徐艳芳,黄葭蓓,高宁,张丁南.电子书阅读器文字显示质量评价方法研究[J].信息记录材料,2009,10(6):3-7. |
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| 作者姓名： | 徐艳芳 黄葭蓓 高宁 张丁南 |
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| 作者单位： | 1. 北京印刷学院,印刷与包装工程学院,北京,102600
2. 中国出版科学研究所,数字出版研究室,北京,100073 |
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| 摘 要： | 建立了用于电子书阅读器文字显示质量的评价方法。基于电子书材料的光谱反射率特征,结合常用阅读用照明光源光谱和人眼的光谱视见特性,定义了该类器件白场与暗场的亮度对比度CL和白场亮度YW性能参数。通过对12个产品的参数测量和主观评价实验,定义并分析了文字显示清晰度感知质量评价指数QC与CL和YW的相关性。结果表明:QC与CL和YW均有关;在线性相关的情况下即可较好地预测文字显示的清晰度感知质量。此外,采用CIELAB彩度Ca*b参数量化了电子书背景白的偏色程度,并通过主观评价实验表明,Ca*b彩度值增大会降低文字阅读的舒适度;大于6的Ca*b彩度值将使阅读产生不舒适感觉。
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| 关 键 词： | 电子书阅读器 亮度 对比度 背景 彩度 |
A Method for Evaluation of the Font Displaying Quality of E-book Reader |
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| XU Yan-fang,ZHANG Ding-nan,HUANG Jia-bei,GAO Ning.A Method for Evaluation of the Font Displaying Quality of E-book Reader[J].Information Recording Materials,2009,10(6):3-7. |
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| Authors: | XU Yan-fang ZHANG Ding-nan HUANG Jia-bei GAO Ning |
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| Affiliation: | XU Yan-fang1,ZHANG Ding-nan2,HUANG Jia-bei1,GAO Ning2(1.School of Printing & Packing Engineering,Beijing Institute of Graphic Communication,Beijing 102600,China,2.Digital Publishing Department,Chinese Institute of Publishing Science,Beijing 100073,China) |
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| Abstract: | A method for the evaluation of the font displaying qualities of e-book was presented.Based on the characteristics of the spectral refection of the e-book surface,and combined with the spectral energy distribution of the illumination source and the spectral response attribute of the human vision,the luminance contrast CL between the white and blank display states and the white luminance YW of an e-book were determined.By an experiment carried out with 12 e-books on the market,an index QC used for evaluating ... |
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| Keywords: | e-book reader luminance contrast background chroma |
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