25 January 2011 Content dependent selection of image enhancement parameters for mobile displays
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Mobile devices such as cellular phones and portable multimedia player with capability of playing terrestrial digital multimedia broadcasting (T-DMB) contents have been introduced into consumer market. In this paper, content dependent image quality enhancement method for sharpness and colorfulness and noise reduction is presented to improve perceived image quality on mobile displays. Human visual experiments are performed to analyze viewers' preference. Relationship between the objective measures and the optimal values of image control parameters are modeled by simple lookup tables based on the results of human visual experiments. Content dependent values of image control parameters are determined based on the calculated measures and predetermined lookup tables. Experimental results indicate that dynamic selection of image control parameters yields better image quality.
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Yoon-Gyoo Lee, Yoon-Gyoo Lee, Yoo-Jin Kang, Yoo-Jin Kang, Han-Eol Kim, Han-Eol Kim, Ka-Hee Kim, Ka-Hee Kim, Choon-Woo Kim, Choon-Woo Kim, "Content dependent selection of image enhancement parameters for mobile displays", Proc. SPIE 7866, Color Imaging XVI: Displaying, Processing, Hardcopy, and Applications, 786608 (25 January 2011); doi: 10.1117/12.872302; https://doi.org/10.1117/12.872302

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