Image quality improvement for electrophoretic displays by combining contrast enhancement and halftoning techniques

Wen Chung Kao; Jia An Ye; Ming I. Chu; Chung Yen Su

doi:10.1109/TCE.2009.4814408

Image quality improvement for electrophoretic displays by combining contrast enhancement and halftoning techniques

Wen Chung Kao, Jia An Ye, Ming I. Chu, Chung Yen Su

Department of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

The electrophoretic display (EPD) has dominated the panel used in electronic readers. However, getting more than 16 observable gray levels on an EPD is still a big challenge. A true color image should be converted into a 16 gray level image for displaying it on an EPD. In this paper, we propose an image processing tool that combines contrast enhancement and the modified Nasik pattern halftoning to deal with the problems in the image conversion chain. The experimental results show that the processed image has preserved more image textures after the image data are quantized into 16 gray levels1.

Original language	English
Pages (from-to)	15-19
Number of pages	5
Journal	IEEE Transactions on Consumer Electronics
Volume	55
Issue number	1
DOIs	https://doi.org/10.1109/TCE.2009.4814408
Publication status	Published - 2009

Keywords

Contrast enhancement
Electrophoretic display
Halftoning
Nasik pattern

ASJC Scopus subject areas

Media Technology
Electrical and Electronic Engineering

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abstract = "The electrophoretic display (EPD) has dominated the panel used in electronic readers. However, getting more than 16 observable gray levels on an EPD is still a big challenge. A true color image should be converted into a 16 gray level image for displaying it on an EPD. In this paper, we propose an image processing tool that combines contrast enhancement and the modified Nasik pattern halftoning to deal with the problems in the image conversion chain. The experimental results show that the processed image has preserved more image textures after the image data are quantized into 16 gray levels1.",

keywords = "Contrast enhancement, Electrophoretic display, Halftoning, Nasik pattern",

author = "Kao, {Wen Chung} and Ye, {Jia An} and Chu, {Ming I.} and Su, {Chung Yen}",

note = "Funding Information: 1This work was supported in part by NSC 97-2622-E-003 -003 -CC1, SiPix Imaging Inc., USA, and SiPix Technology Inc., Taiwan.",

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AU - Kao, Wen Chung

AU - Ye, Jia An

AU - Chu, Ming I.

AU - Su, Chung Yen

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N2 - The electrophoretic display (EPD) has dominated the panel used in electronic readers. However, getting more than 16 observable gray levels on an EPD is still a big challenge. A true color image should be converted into a 16 gray level image for displaying it on an EPD. In this paper, we propose an image processing tool that combines contrast enhancement and the modified Nasik pattern halftoning to deal with the problems in the image conversion chain. The experimental results show that the processed image has preserved more image textures after the image data are quantized into 16 gray levels1.

AB - The electrophoretic display (EPD) has dominated the panel used in electronic readers. However, getting more than 16 observable gray levels on an EPD is still a big challenge. A true color image should be converted into a 16 gray level image for displaying it on an EPD. In this paper, we propose an image processing tool that combines contrast enhancement and the modified Nasik pattern halftoning to deal with the problems in the image conversion chain. The experimental results show that the processed image has preserved more image textures after the image data are quantized into 16 gray levels1.

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KW - Electrophoretic display

KW - Halftoning

KW - Nasik pattern

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