Research on the coding strategies for synonym substitution-based steganography
It is crucial for synonym substitution-based steganographic algorithms to choose a suitable coding strategy for high embedding capacity.In this paper,three existing coding strategies are discussed in detail.After that,a new coding strategy based on the concept of block coding is designed,and the binary tree based coding strategy is improved by constructing a complete binary tree to obtain the maximum expected coding length.The theoretical comparison of embedding capacity provided by different coding strategies has been given.The experimental results show that the block-based coding strategy provides a more balanced performance compared with other strategies.
Coding strategy Synonym substitution Steganography Embedding capacity
Lingyun Xiang Gang Luo Yuhua Xie Weihu Chen
School of Computer and Communication Engineering,Changsha University of Science and Technology,Chang College of Information Science and Engineering,Hunan University,Changsha 410082,China;Loudi Municipa Loudi Municipal office,SAT,Loudi 417000,China
国内会议
济南
英文
1-12
2014-10-16（万方平台首次上网日期，不代表论文的发表时间）