標題: Digital halftoning method with simultaneously optimized perceptual image quality and drive current for multi-tonal electrophoretic displays
作者: Qin, Zong
Wang, Hsin-, I
Chen, Zi-Yu
Chen, Chun-Ho
Tien, Pei-Lin
Liu, Mei-Hwa
Liu, Shu-Cheng
Hung, Chi-Mao
Tsai, Chuan-Chuan
Huang, Yi-Pai
光電工程學系
Department of Photonics
公開日期: 1-一月-2020
摘要: While using digital halftoning to achieve multi-tones in al bit electrophoretic display (EPD), e.g., a three-pigment chromatic EPD, the drive current is significantly increased because of frequently reversed pixel values. Aimed at this issue, this study first establishes a model that can accurately predict the drive current from image content. Next, based on the direct binary search method, a new halftoning method is proposed by constructing a combined merit function that incorporates both the perceptual image quality and the drive current. As a result, in experiments using a 13.5 in. three-pigment EPD and several test images, compared with the well-developed error-diffusion method, the proposed method produces little image quality degradation, whereas the drive current increase with respect to the minimum current of the EPD is reduced from 71.8 to 33.0 mA, for a significant reduction of 54.0%. (C) 2019 Optical Society of America
URI: http://dx.doi.org/10.1364/AO.59.000201
http://hdl.handle.net/11536/153523
ISSN: 1559-128X
DOI: 10.1364/AO.59.000201
期刊: APPLIED OPTICS
Volume: 59
Issue: 1
起始頁: 201
結束頁: 209
顯示於類別:期刊論文