We propose a kind of steganographic algorithm based on the edge processing in this paper. Firstly, the cover is marginalized and reconstructed through mathematical morphology and block markers, then embedding the secret message into the cover picture successfully with F5 steganographic algorithm. The experiments demonstrate that the different cover image use this algorithm to hide the secret information which holds predominant advantages, such as the small changes in image quality, strong ability in anti-attack, and the secret information can be extracted completely from the carrier image. The above advantages make a broad application prospect.
In this paper, we analyzed Logistic mapping chaotic sequences and technical shortcomings for single cover steganography. Improved single cover steganography schemes based on main characteristics of steganography, and brings forward with batch theoretical model of steganography, working principle, correlation of its model maximizes payload and capacity of covers. Analyses the security, and gives formal proof by the model of information theory.
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