Reversible Data Hiding in the VQ-Compressed Domain

ASIA unversity > 資訊學院 > 資訊工程學系 > 期刊論文 > Item 310904400/6443

請使用永久網址來引用或連結此文件: http://asiair.asia.edu.tw/ir/handle/310904400/6443

題名:	Reversible Data Hiding in the VQ-Compressed Domain
作者:	Chang, C. C.;Chou, Y. C.;Lin, C. Y.
日期:	2007-09
上傳時間:	2009-12-17 06:57:59 (UTC+0)
出版者:	Asia University
摘要:	Steganographic methods usually produce distortions in cover images due to the process of embedding secret bits. These distortions are hard to remove, and thus the cover image cannot be recovered. Although the distortions are always small, they cannot be allowed for some sensitive applications. In this paper, we propose a reversible embedding scheme for VQ-compressed images, which allows the original cover image to be completely recovered after the extraction of the secret bits. The embedded payload in the proposed method comprises the secret bits plus the restoration information. In order to reduce the size of payload, we utilized the spatial correlations in the image as the restoration information and then compressed the correlations by a lossless compression method. In addition, an alternative pairing method for codewords was proposed to improve the stegoed image quality and control the embedding capacity. Experimental results showed that the proposed method has the benefit of high efficiency of the steganographic process, high image quality, and adaptive embedding capacity compared with other schemes.
關聯:	IEICE Transactions on Information and Systems E90-D(9):1422-1426
顯示於類別:	[資訊工程學系] 期刊論文

文件中的檔案:

檔案	描述	大小	格式	瀏覽次數
		0Kb	Unknown	523	檢視/開啟
310904400-6443 .doc		95Kb	Microsoft Word	308	檢視/開啟

在ASIAIR中所有的資料項目都受到原著作權保護.