An Information Hiding Scheme Based on (7,4) Hamming Code Oriented Wet Paper Codes

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题名:	An Information Hiding Scheme Based on (7,4) Hamming Code Oriented Wet Paper Codes
作者:	Yin, Z. X.;Chang, C. C.;Zhang, Y. P.
关键词:	Information hiding, Steganography, Wet paper code, Run length encoding, Hamming code
日期:	2009-08
上传时间:	2009-12-17 06:57:19 (UTC+0)
出版者:	Asia University
摘要:	Generally, the embedding quality and the embedding capacity are two important factors in evaluating the performance of information hiding schemes, but they are usually inversely proportional. Thus, to satisfy the different requirements, the users often make a tradeoff between good embedding quality and high embedding capacity. In this paper, a spatial domain technique, embedding binary message bits into a still image based on Hamming code oriented wet paper codes, is discussed and evaluated. We get inspiration from Chang, Chou and Lin’s work and make a critical improvement. The significant difference between their scheme and ours is that we have no specific requirements imposed on the distribution of both the dry pixels and the wet pixels in cover images; wet pixels can be chosen completely in accordance with the characteristics of different cover images as well as the application’s needs. The proposed scheme has been tested with nine commonly-used gray images. Subtle and radical variations to the existing scheme are suggested and proven to provide a significantly improved PSNR.
關聯:	International Journal of Innovative Computing, Information and Control
显示于类别:	[資訊工程學系] 期刊論文

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