A Modified Side Match Scheme for Image Steganography

Abstract

Abstract: In this paper, we proposed an image stegangraphy scheme to further improve the side match method proposed by Chang et al. in 2004. By hiding more information in the edge por-tions, image quality is improved while maintaining the same embedding capacity. This merit re-sults from the fact that human eyes can rarely percept trivial differences in the edge regions. The embedding capacity is adjustable according to various demands of individual users. In addition to the improvement on image quality, the proposed approach provides respectable security as well.