Development of visibility estimation model using colors and contrasts

万维网的迅速普及增加了网页可见性研究的重要性。前景和背景颜色的组合是提供足够可见度的一个重要因素，在开发无障碍网站时应该考虑颜色组合可见度的等级。视觉刺激是18种彩色和3种非彩色网络安全颜色。受试者的年龄从21岁到75岁不等，所有人都有正常的色觉。受试者同时看着两个不同颜色的字符，并被指示识别出他们看得更清楚的是哪一个。为了检验颜色组合的心理排名和视觉感觉之间的关系，通过瑟斯通的配对比较技术对每种颜色组合的可见性进行了评分。视觉感受…通过将韦伯-费克纳定律应用于前景颜色的亮度，得出了更多的结论。结果表明，前景色的亮度影响网页安全色的可见性；然而，仅有亮度不足以做出可见性评级。色度和色度饱和度也是评价网络安全色彩可见性的必要条件。其次，提出了一种针对个人用户可见性的自动色彩校正(调色板更换)网页浏览方法。由于对所有可能的颜色组合进行调查极其困难，因此需要一种用于估计颜色组合可见度的模型。在我们的研究中，SOM(自组织映射)被用来解决这一问题。提出了一种基于SOM的Web浏览个人可见度预测方法。该方法在因特网的HTTP服务器上被实现为CGI(公共网关接口)软件。我们发现，CGI对于网页浏览的自动色彩校正是有用的。这表明SOM可用于提高可见性和个人可用性。较少

The rapid dissemination of the World Wide Web has increased the importance of web page visibility research. The combination of foreground and background colors is an important factor in providing sufficient visibility, and the rating of color combination visibility should be considered when developing accessible websitesIn this research, firstly, the visibility of several web-safe color combinations was examined using psychological methodology, i.e., paired comparison. Visual stimuli were 18 chromatic and 3 achromatic web-safe colors. Subjects ranging in age from 21 to 75 years were recruited, and all had normal color sensation. Subjects looked at two different colored characters simultaneously and were instructed to identify which they could see more clearly. To examine the relationship between psychological rankings of the color combinations and visual sensations, each color combination was scored with regard to visibility by Thurstone's paired comparison technique. Visual sensation … More was deduced by applying Weber-Fechner's law to the luminance of the foreground colors. Results indicated that the luminance of a foreground color influenced visibility of web-safe colors ; however, luminance alone was not sufficient to make a visibility rating. Chromaticity and chroma saturation are also necessary in the rating of chromatic web-safe color visibility.Secondly, a Web browsing method with an automatic color correction (palette changing) for personal user's visibility was proposed. Since an investigation of all possible color combinations is extremely difficult to conduct, a model for estimating color combination visibility is needed. In our study, SOM (Self-Organizing Maps) was used to solve this problem. We proposed a prediction method with SOM for personal visibility on Web browsing. This method was implemented as CGI (Common Gateway Interface) software on a HTTP server of the Internet. We found that the CGI is useful for automatic color correction of Web browsing. This indicated that SOM was available for improving visibility and individual personal usability. Less