Investigation of Large Display Color Image Appearance I: Important Factors Affecting Perceived Quality
Abstract:A large-scale psychophysical experiment was performed to establish the important image appearance attributes controlling the perceived quality of images presented on a large display under dark surround conditions. Six image appearance attributes were chosen: Colorfulness, contrast, naturalness, visual information, sharpness, and image quality. A nine-point qualitative category scale was used to rate these six attributes for eight test images, each of which had 22 derivative images which varied in lightness, chroma, and sharpness. The influences of the three image manipulations on the six attributes, and the psychophysical relations between image quality and its constituent attributes were investigated. Multiple regression and factor analysis were conducted to derive an empirical image quality model. It was found that there were high correlations among the five attributes forming image quality: Between sharpness and contrast, and between naturalness and visual information. Furthermore, colorfulness, contrast, and naturalness were key attributes to have a significant impact on image quality.
Document Type: Research Article
Affiliations: Department of Color Science, University of Leeds, Leeds, LS2 9JT United Kingdom
Publication date: July 1, 2008
The Journal of Imaging Science and Technology (JIST) is dedicated to the advancement of imaging science knowledge, the practical applications of such knowledge, and how imaging science relates to other fields of study. The pages of this journal are open to reports of new theoretical or experimental results, and to comprehensive reviews. Only original manuscripts that have not been previously published, nor currently submitted for publication elsewhere, should be submitted.
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