Abstract
The purpose of this study is to identify the physical factors affecting subjective image-quality assessment which considers kansei. In recent years, digital cameras have become extremely popular. Most of the digital cameras have the function to change automatically physical parameters of pictures in response to the scenes, even if the cameras are not so expensive one. However, it has not been identified what change of physical factors influence the subjective image-quality assessment which includes kansei. In this study, five typical physical factors, i.e. noise, luminance, saturation, contrast, and sharpness, are treated as experimental factors. These physical factors are common and quantitatively varied easily by using general image processing software. We investigated the effect of these physical factors on subjective image-quality assessment which includes kansei. The results of two experiments showed that “noise”, “luminance” and “contrast” may be important physical factors to an enhancement in the subjective image-quality assessment which includes kansei.
