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Data Hiding Based on EMD for Ordered Block Truncation Coding  

Kim, Cheon-Shik (Division of Liberal Arts, Anyang University)
Jo, Min-Ho (Graduate school of Information Management & Security, Korea University)
Hong, You-Sik (Dept. of Computer Science, Sangji University)
Park, Hyun-Sook (Dept. of Broadcasting Engineering, Dong-Ah Institute of Media and Arts)
Publication Information
Journal of the Institute of Electronics Engineers of Korea CI / v.46, no.6, 2009 , pp. 27-34 More about this Journal
Abstract
Block truncation coding (BTC) is a simple and efficient image compression technique. However, it yields images of unacceptable quality and significant blocking effects are seen when the block size is increasing. Ordered dither block truncation coding (ODBTC) was proposed to solve above problem maintaining the same compression capability. In this paper, we propose a data hiding method which can be applied to halftone images. EMD was developed by Zhang and Wang [6] for data hiding in the grayscale image. Therefore, EMD is not proper for bitmap images. In this paper, we show that EMD can be used to apply bitmap halftone image. In our experiments, we prove that our method is efficient in a halftone image.
Keywords
Data Hiding; BTC; ODBTC; EMD;
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  • Reference
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