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• W2245694197 abstract "If we can present color combinations of the same conspicuity to users, it may help them choose arbitrary color combinations suited for particular purposes (e.g. spatial design, color accessibility etc.). This study aims to find quantitatively how equivalent conspicuities are expressed in a color space. In the experiment, we used two center-surround type color combination stimuli: the reference and the test stimulus. A subject adjusted the saturation of the center of the test stimulus along a given direction in the a*b* plane until the test stimulus had the same conspicuity as that of the reference stimulus. The results indicate that the equivalent conspicuous points are wellexpressed as an ellipse. Further, our results indicate that the degree of conspicuity was different depending on hue even if the color difference was the same. These results show the similar trends as a previous study [1]. INTRODUCTION In 2006, a new act on accessibility went into effect in Japan. Since then, many companies tried to share the rules for sign systems, or establish guidelines for their usage. It is not too much to say that sign systems are playing an important role in universal design. In these sign systems, selecting appropriate colors as a method of achieving conspicuity is easy and highly effective, as it doesn’t require any physical change of the existing properties. In fact, we can see many sign systems that use color as a property for conspicuity in places such as stations. In this case, it is necessary to select colors based on its conspicuity in addition to taking its particular purpose, such as spatial design, color accessibility, into account. However, it is difficult to choose appropriate colors which fulfill both conspicuity and the purpose simultaneously: if we emphasis its conspicuity, that color might not suit for its purpose of usage, and vice versa. As a result, the presentation of the colors is limited, and it cannot be accomplished from wide variety of choices. As for a trend of conspicuity and emotion mediated for the color combination reported in the previous researches [1] [2], it is difficult to choose specific color, and its choice is really restricted. If we can offer multiple color combinations of the same conspicuity to users, it may help them choose arbitrary color combinations suited for particular purposes. This study aims to find an attribute of the equivalent conspicuity quantitatively in two-color combinations. METHODS Equipment The experiments were conducted in a booth whose walls were covered with black velvet. A fluorescent light lit the inside the booth in order to prevent subjects from dark adaptation. The illuminance of the booth was approximately 180 lx. A LCD monitor (EIZO ColorEdge CG245W 24.1 inch), which controlled by ViSaGe (Cambridge Research System), was placed in front of the PA 12" @default.
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• W2245694197 date "2013-01-01" @default.
• W2245694197 modified "2023-09-23" @default.
• W2245694197 title "How equivalent conspicuity in two-color combinations is expressed in color space" @default.
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