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.