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Gray-scale perceptions calculated: optimum display background luminance

机译:计算灰度感知:最佳显示背景亮度

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The following questions motivated this study, which summarizes and illustrates the answers. How can the number or gray levels visible on a display be maximized? How can a designer maximize the discriminability of a wet of gray symbols that use only a part of the luminance range available from the display technology? Can we calculate whether particular shades of gray wilt be discriminable from each other? How big should successive gray-scale steps be (in luminance, reflectance, or optical density) to make them appear equal? How many discriminable shades of gray can he seen with a particular display technology in a particular light environment? What is the probability that two specified shades of gray will he mistaken for each other at a glance? How does the luminance of the screen background affect the visibility of gray symbols? Is there a single principle that describes the appearances of areas more luminous than the background (positive contrasts) and less luminous areas (negative contrasts)? Limitations on the answers are discussed, issues for further research are suggested. and applications are described. # 1997 Optical Society of America
机译:以下问题推动了本研究的进行,该研究总结并举例说明了答案。如何最大化显示屏上可见的数字或灰度级?设计人员如何才能最大程度地利用仅显示技术可提供的一部分亮度范围的灰色符号的可分辨性?我们能否计算出是否可以区分出特定的灰色阴影?连续的灰度级应达到多大(亮度,反射率或光密度)以使它们看起来相等?在特定的光线环境下,使用特定的显示技术可以看到多少可识别的灰色阴影?他一眼就会误认为两个指定的灰色阴影的可能性是多少?屏幕背景的亮度如何影响灰色符号的可见性?是否有一个单一的原理来描述比背景发光的区域(正对比度)和发光程度较低的区域(负对比度)的外观?讨论了答案的局限性,并提出了需要进一步研究的问题。和应用程序进行了描述。 #1997美国眼镜学会

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