关键词: 密写 信息隐藏 统计分析 抗侦测

Abstract:

In this paper, an improved steganographic scheme that can effectively resist IQM analysis with ensuring message capability and without sacrificing theperceptual quality of the cover image is described. In the method, the secret data will be embedded in the low-frequency part of the DCT coefficients a nd the embedded DCT coefficients will be added with redundant Gaussian-like noise to keep the noise distribution of the stego-image. This method has bee n simulated and gets better results.

Key words: steganography, information hiding, statistical analysis, steganalysis resist