期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2013
卷号：2
期号：1
页码：21-26
出版社：Shri Pannalal Research Institute of Technolgy
摘要：In this paper, we present four new techniques to hide a large volume of text in a gray level image by reducing its spatial resolution to its half, to its quarter and by reducing the spatial resolution in width and in height. The actual image and the data embedded stego-images using the techniques are given. The Mean Square Error (MSE) and Peak to Signal Noise Ratio (PSNR) values have been determined. Histograms for the computed values of MSE and PSNR indices and embedding capacity are drawn.
关键词：Steganography; Spatial Resolution ; Reduction; Mean Square Error; Peak to Signal Noise Ratio
