文章基本信息

标题：A DWT Method for Image Steganography
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作者：Barnali Gupta Banik ; Prof. Samir K. Bandyopadhyay
期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2013
卷号：3
期号：6
出版社：S.S. Mishra
摘要：In this era of Internet every digitized object is transferable and exchangeable over internet for various purposes. As every computer user knows that there are numerous security threats for digitized objects hence methods like steganography are getting more importance day by day. Though steganography is a very old method of hiding information behind some object, but still this is very effective for secure data transfer and data exchange. Today this method is used for digital objects like text, audio, video and images. In this paper a method for image steganography has been discussed, utilising basics of discrete wavelet transform
关键词：DWT; wavelet; coefficient; image steganography; decomposition; stego