期刊名称：BVICAM's International Journal of Information Technology
印刷版ISSN：0973-5658
出版年度：2013
卷号：5
期号：1
语种：English
出版社：Bharati Vidyapeeth's Institute of Computer Applications and Management
摘要：In this paper we present a reversible image steganography technique based on Slantlet transform (SLT) and using advanced encryption standard (AES) method. The proposed method first encodes the message using two source codes, viz., Huffman codes and a self-synchronizing variable length code known as, T-code. Next, the encoded binary string is encrypted using an improved AES method. The encrypted data so obtained is embedded in the middle and high frequency sub-bands, obtained by applying 2-level of SLT to the cover-image, using thresholding method. The proposed algorithm is compared with the existing techniques based on wavelet transform. The Experimental results show that the proposed algorithm can extract hidden message and recover the original cover image with low distortion. The proposed algorithm offers acceptable imperceptibility, security (two-layer security) and provides robustness against Gaussian and Salt-n-Pepper noise attack.
