Subjective image quality evaluation method for digital images that reflects users’ characteristics N Takamatsu1, E Aiba1, Y Takahira1, K Okada, J Kida, A Shiraiwa1, N Nagata1 |
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1Research Center for Kansei Value Creation, Kwansei Gakuin University / AIST / JSPS, Japan
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| In the field of marketing, with diversification of individual values, the need to classify products according to users’ preferences has been increasing. Needless to say, there are differences among individual preferences in the evaluation of image quality. This study focuses on differences among evaluations of camera users and examines the image quality evaluation method, which considers user characteristics. In particular, an experiment to evaluate the subjective image quality using scenes of “Landscape,” “Portrait,” and “Still Life” was conducted. In addition, participants were required to answer a questionnaire about their preferences that relate to photos and their profiles. Cluster analysis and the chi-square test were applied to the results of conjoint analysis and the questionnaire. As a result, the participants were classified into two groups: a group of camera users who are particular about photos, and another group of camera users who are not particular about photos. The results also showed differences between the groups of camera users in their perception of psychological factors such as brightness, saturation, and contrast. Especially significant differences were found in perceptions of still-life scene with varying contrast and saturation. |
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