Improving the Modified Matrix Encoding on Steganography Method
Yongsoo Choi, HyoungJoong Kim · 2009
In this paper, we present a steganographic method that improves some existing data hiding methods. This method works in compressed domain (JPEG) of image. In most of the previous methods, they usually change coefficients to hide information. And some methods tried to enhance the performance of general steganographic method like F5 including matrix encoding. In above papers, they achieve to reduce the distortion after hiding data into coefficient of compressed domain. We have been analyzed the effect of quantization table during data hiding on compressed domain. Finally, we considered that there would be more chance to reduce the distortion of steganographic method. As the result, this paper provides little bit more improved result in view of image quality. This result can give some contribution for future steganographic methods which will work in compressed domain like JPEG.