Abstract
This paper aims to investigate a color-harmony decision method of a color evaluation system in bridge landscapes, which will present a reasonable and quantitative color-index for color selection of bridge design. Firstly, using a color image questionnaire in the Semantic Differential technique for bridge landscapes, its factor analysis clarifies their basic color-image structures. Then, from three color values of the Hue, Saturation and Bri ghtness for some bridge landscape compoments of color images using an image software, harmony characteristics among colors of bridge and its backgrounds are evaluated by the scenary index/-value and parameters in the Moon-Spensar's Color Harmony Theory using the present color evaluation method. Finally, an applicability and validity of the color-harmony decision method to bridge landscapes are discussed comparing with bridge color-image structures.