文章基本信息

标题：Steganography Combining Data Decomposition Mechanism and Stego-coding Method
本地全文：下载
作者：X. Zhang ; S. Wang ; W. Zhang 等
期刊名称：Informatica
印刷版ISSN：1514-8327
电子版ISSN：1854-3871
出版年度：2009
卷号：33
期号：1
出版社：The Slovene Society Informatika, Ljubljana
摘要：A novel steganographic scheme based on data decomposition and stego-coding mechanisms is proposed. In this scheme, a secret message is represented as a sequence of digits in a notational system with a prime base. Each digit block is decomposed into a number of shares. By using stego-coding technique, these shares are then embedded in different cover images respectively. In each cover, a share is carried by a group of cover pixels and, at most, only one pixel in the group is increased or decreased by a small magnitude. That implies a high embedding efficiency, and therefore distortion introduced to the covers is low, leading to enhanced imperceptibility of the secret message. A further advantage of the scheme is that, even a part of stego-images are lost during transmission, the receiver can still extract embedded messages from the surviving covers.
关键词：steganography; data decomposition; embedding efficiency