A further study on a PVD-based steganography
Pixel-value-differencing (PVD) based steganographic methods, which take into account the characteristic of human visual system, usually lead to large embedding capacity and good visual imperceptibility. In this paper, a recently proposed PVD-based steganography is further studied. First, by deriving a sufficient condition for data embedding/extraction, we show that the method can be generalized, and we have in fact a much wider choice of embedding parameters. Then, the security of this PVD-based steganography is analyzed. A targeted steganalyzer for this method is designed, and the experiments show that the method can be easily detected. That is to say, like other PVD-based steganographic methods, this most recent one can not resist statistical detection and it is also not secure. Therefore, as a conclusion, more investigation should be done on PVD-based steganographic methods, to enhance their statistical undetectability.
steganography steganalysis human visual system pixel-value-differencing (PVD)
Liping Ji Xiaolong Li Bin Yang Zhihong Liu
Institute of Computer Science and Technology, Peking University, Beijing 100871, China
国际会议
南京
英文
686-690
2010-11-01（万方平台首次上网日期，不代表论文的发表时间）