Research on an Steganographic Algorithm Based on Image Edge

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.