High payload steganography mechanism using hybrid edge detector

Authors:
Wen-Jan Chen;Chin-Chen Chang;T. Hoang Ngan Le
Affiliations:
Department of Computer Science and Information Engineering, Da-Yeh University, No. 168 University Rd., Dacun, Changhua 51591, Taiwan, ROC;Department of Information Engineering and Computer Science, Feng Chia University, Taichung 40724, Taiwan, ROC and Department of Computer Science and Information Engineering, National Chung Cheng U ...;Department of Computer Science, Natural Science University, 227 Nguyen Van Cu, District 5, HCMC, Vietnam
Venue:
Expert Systems with Applications: An International Journal
Year:
2010

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Abstract

Steganography is the art and science of hiding data into information. The secret message is hidden in such a way that no one can apart from the sender or the intended recipient. The least significant bit (LSB) substitution mechanism is the most common steganographic technique for embedding a secret message in an image with high capacity, while the human visual system (HVS) would be unable to notice the hidden message in the cover image. In this paper, besides employing the LSB substitution technique as a fundamental stage, we take advantage of edge detection technique. The experimental results show that the proposed scheme not only achieves high embedding capacity but also enhances the quality of the stego image from the HVS by an edge detection technique. Moreover, based on that the secret message is replaced with different LSBs, our scheme can effectively resist the image steganalysis.