期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2013
卷号：1
期号：2
出版社：S&S Publications
摘要：In this paper, we consider four types of images namely gray scale, indexed, colour and black & whiteimages and apply steganogrphic techniques by embedding text of 512 bytes in each of these images. Three simple pixelreplacement techniques like equal or nearly equal pixel replacement in each column, equal or nearly equal in pixelreplacement in entire image, random pixel replacement and natural number increment pixel replacement methods areadopted. The actual, stego and the extracted images are shown explicitly. The Mean Square Error (MSE) and Peak toSignal Noise Ratio (PSNR) indices have been computed in each case. The histograms for the computed values of MSEand PSNR indices are drawn. At the end, we have given an introduction to steganography in an audio file.
