摘要
为了对反射式电子阅读器的显示质量进行合理测评,本文探讨了3种常用的D65光源、D50光源和A光源下不同对比度的定义:计量材料本身的光谱行为的对比度定义为反射率对比度Cρ;计量材料的反光行为和人眼的接收特性的对比度定义为反射率视觉对比度Cv;计量材料本身的光谱行为,同时计量光源和人眼的光谱光效特性的对比度定义为亮度对比度CL。通过测试实验选择的电子阅读器产品分析不同对比度之间的关联特性。实验结果表明,在常用光源下,CL和Cv线性相关,在表征该类阅读器的黑白对比度性能上具有等同的作用,考虑到CL进一步可用于衡量黑白对比度的绝对大小。
In order to evaluate the display quality of E-book reader reasonably, The different definitions of the contrast for three commonly used light source D65,D50 and A were discussed. the contrast of the spectral behavior of is defined as reflectance contrast Cρ, which only related to the measurement of the material itself; The contrast of reflectance contrast of the materials and receiving characteristics of human eyes is defined as Cv（visual contrast） which related to the measurement of both the reflective material and the receiving characteristics of the human eyes the brightness contrast is defined as CL measuring spectral behavior of the material itself and the receiving characteristics of the human eyes,while measuring the spectral characteristics of luminous efficiency. Through the testing analysis of chosen E-book reader products for experiments, the correlations between different contrasts could be assessed. The experimental results show that under the commonly used light source, the CL and Cv are applicable to assess the relative contrast,taking the light source and the human eye＇s spectral luminous efficiency characteristics into account,while the CL is more adaptive and applicable to assess the absolute contrast.
出处
《信息记录材料》
2009年第4期9-12,共4页
Information Recording Materials
关键词
反射
对比度
光源
reflection contrast light source
