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文章基本信息

  • 标题:A Method for Tamper proofing Images Using DCT Watermarking
  • 本地全文:下载
  • 作者:Jobin Abraham
  • 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.
  • 关键词:Image Watermarking;DCT Transform Domain;Embedding; Extraction;PSNR.
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