期刊名称：Signal & Image Processing : An International Journal (SIPIJ)
印刷版ISSN：2229-3922
电子版ISSN：0976-710X
出版年度：2014
卷号：5
期号：3
页码：25
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：Steganography is a technique of concealing the secret information in a digital carrier media, so that onlythe authorized recipient can detect the presence of secret information. In this paper, we propose a spatialdomain steganography method for embedding secret information on conditional basis using 1-Bit of MostSignificant Bit (MSB). The cover image is decomposed into blocks of 8*8 matrix size. The first block ofcover image is embedded with 8 bits of upper bound and lower bound values required for retrievingpayload at the destination. The mean of median values and difference between consecutive pixels of each8*8 block of cover image is determined to embed payload in 3 bits of Least Significant Bit (LSB) and 1 bitof MSB based on prefixed conditions. It is observed that the capacity and security is improved compared tothe existing methods with reasonable PSNR.
