A Novel Scheme for Text Information Hiding into a Carrier Image Based on BCH Code and HVS Model
The issue of security becomes more and more important in the process of information transmission. The paper proposes a novel transmission scheme for text information by hiding it into a carrier image. Firstly, we use ASCⅡ codes to represent the text information and encode these information codes by BCH code before transmitting them. Secondly, we divide the carrier image into 8×8 blocks and transform every block by two-dimensional DCT, calculate JND value of every DCT coefficient and choose the hiding coefficients. Finally, we hide the information codes into the selected coefficients in DCT domain. The process of extracting information codes is the inverse. We do many experiments to prove our scheme to be secure and easy to operate.
text information ASCH code BCH code DCT JND Model
Chun-Xia Li
Mathematical and Physical College, Qingdao University of Science & Technology, Qingdao, China
国际会议
2009 International Workshop on Information Security and Application(2009 信息安全与应用国际研讨会)
青岛
英文
130-133
2009-11-21(万方平台首次上网日期,不代表论文的发表时间)