Recently,an edge adaptive image stegano-graphic method based on least significant bit(LSB)matching revisited(EA-LSBMR)has been proposed,which holds good visual quality and proper security under appropriate embedding r...Recently,an edge adaptive image stegano-graphic method based on least significant bit(LSB)matching revisited(EA-LSBMR)has been proposed,which holds good visual quality and proper security under appropriate embedding rates.However,from the extensive experiments to EA-LSBMR,we find that the discrete Fourier transform(DFT)spectrum of pixelpairs differences histogram still reveals the presence of a secret message even in a low embedding rate.To enhance the security,a modified scheme is proposed in this paper,which can defeat the above-mentioned analysis and keep the visual quality better than EA-LSBMR in higher embedding rates.Experimental results using a latest universal steganalysis method have demonstrated the proposed method's good performance.展开更多
基金supported in part by the National Science Foundation of China for Distinguished Young Scholars under Grant No.61025013Sino-Singapore JRP under Grant No.2010DFA11010+1 种基金National NSF of China under Grant No.61073159Fundamental Research Funds for the Central Universities under Grant No.2009JBZ006
文摘Recently,an edge adaptive image stegano-graphic method based on least significant bit(LSB)matching revisited(EA-LSBMR)has been proposed,which holds good visual quality and proper security under appropriate embedding rates.However,from the extensive experiments to EA-LSBMR,we find that the discrete Fourier transform(DFT)spectrum of pixelpairs differences histogram still reveals the presence of a secret message even in a low embedding rate.To enhance the security,a modified scheme is proposed in this paper,which can defeat the above-mentioned analysis and keep the visual quality better than EA-LSBMR in higher embedding rates.Experimental results using a latest universal steganalysis method have demonstrated the proposed method's good performance.
