期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2013
卷号：4
期号：2
页码：538-540
语种：English
出版社：Ayushmaan Technologies
摘要：This paper proposes a blind method for tamper proofing images using the watermarking techniques. The image is subdivided in to non-overlapping blocks. These are then sequentially indexed using watermarking. DCT transformation is applied on the image as well on the watermark information, yielding a set of coefficients. These transformed parameters are further processed to hide the index block number imperceptibly. Thus, every segment or region in the image carries a unique number. The proposed technique is also suitable with slight modifications for fingerprinting the images and also for covert communication by hiding the actual details.
