A New Hybrid DWT-DCT Algorithm for Digital Image Watermarking

Authors

  • Lalit Kumar Saini M.Tech Research Scholar,Arya College of Engg&IT,Jaipur, lalitkumarsaini@outlook.com
  • Vishal Shrivastava Professor,Deptt. Of Computer science &Engg ,Arya College of Engg& IT , Jaipur, vishal50071@yahoo.co.in

Keywords:

Watermark, DCT-DWT, MAE, PSNR, Attacks

Abstract

Watermarking is the requirement of today‟s digital media. Embedding of watermark
provides security against piracy & attacks .Watermarking is also useful for provide owner
identification to digital media. Inthis Research papera new algorithm, for digital image, based on
Hybrid DWT-DCT Transformation is proposed. A host image (grey scale) is initially DWT
transformed up to 3-level.Thencomputation of DCT transform on selected sub bands from DWT
transform is done. Watermark image is embedded in the 4*4 block of DCT blocks. The reverse
procedure is use to extraction watermark. Resultsshowsthathighimperceptibilityis achieved during
whole experiment which is applied to different formats of images. As compare of same kind of hybrid
algorithms it has higher perceptible.

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Published

2014-05-25

How to Cite

Lalit Kumar Saini, & Vishal Shrivastava. (2014). A New Hybrid DWT-DCT Algorithm for Digital Image Watermarking. International Journal of Advance Engineering and Research Development (IJAERD), 1(5), 801–808. Retrieved from https://ijaerd.org/index.php/IJAERD/article/view/143

Issue

Vol. 1 No. 5 (2014): Volume 1 Issue 5 (May-2014)

Section

Articles