期刊名称：International Journal of Security and Its Applications
印刷版ISSN：1738-9976
出版年度：2013
卷号：7
期号：6
页码：285-294
DOI：10.14257/ijsia.2013.7.6.29
出版社：SERSC
摘要：In this paper a pixel value differencing steganography based on the maximum difference of the neighboring pixel values have been proposed. There are four variants such as five, six, seven and eight neighbor differencing. In five neighbor differencing method the maximum difference amongst the five neighboring pixels such as upper, left, right, bottom and upper- right corner are used to take embedding decision. In six neighbor differencing method the maximum difference amongst the six neighboring pixels such as upper, left, right, bottom, upper-right corner, and upper-left corner are used to take embedding decision. In seven neighbor differencing method the maximum difference amongst the seven neighboring pixels such as upper, left, right, bottom, upper-right corner, upper-left corner and bottom-left corner are used to take embedding decision. In eight neighbor differencing method the maximum difference amongst all the eight neighboring pixels are used to take embedding decision. The message extraction process is very simple and does not require any knowledge of the original image. The experimental results show that the distortion is the minimum in five neighbor differencing. But the theoretical studies reveal that the hiding capacity is the highest in eight neighbor differencing.
关键词：steganography; pixel value differencing; five neighbor differencing; six neighbor ; differencing; seven neighbor differencing; eight neighbor differencing
