文章基本信息

标题：A Review of Invisible Image Steganography Using Mid Band DCT Coefficients
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作者：Shinu ; Vijay Laxmi
期刊名称：International Journal of Engineering and Computer Science
印刷版ISSN：2319-7242
出版年度：2014
卷号：3
期号：8
页码：7913-7916
出版社：IJECS
摘要：Data hiding techniques have an important role with the rapid growth of intensive transfer of multimedia content andprivate communications. Steganography is the art of hiding information in different ways that prevent detection by unintended user.The Steganography used to transfer data and information from one source to other source through public channel in hidden way.Steganography hides the existence of message so that the information is transferred in stealthful way. Steganography means hiding amessage (the embedded message) within a larger one (source cover file) in such a way that an observer cannot detect the presence of thehidden message. Many different carrier files can be used, like digital images which are the most popular on Internet. For hidingsecret information in images, there exists a large variety of Steganography techniques some of which are simple and some are morecomplex than others and all of them have strong and weak features. Various applications have different requirements of theSteganography technique used. This paper intends to give an overview of image Steganography, its uses and techniques. It also attemptsto identify the requirements of a good Steganography algorithm and briefly reflects on which Steganography techniques are moresuitable for which applications
关键词：Steganography; Frequency Domain; Spatial domain; LSB method.