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Proceedings of 2009 International Workshop on Information Security and Application (IWISA 2009)

Qingdao, China, November 21-22, 2009

Editors: Feng Gao and Xijun Zhu

AP Catalog Number: AP-PROC-CS-09CN004

ISBN: 978-952-5726-06-0

Page(s): 130-133

A Novel Scheme for Text Information Hiding into a Carrier Image Based on BCH Code and HVS Model

Chun-Xia Li

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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 88 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.

Index Terms

text information, ASCII code, BCH code, DCT, JND Model

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