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A Novel Feature Based Blind Watermarking Scheme

Dr. M. Mohammed Sathik, S. S. Sujatha

Abstract


This paper proposes an algorithm that embeds the watermark information in host image in order to authenticate it.  The input image is divided into non overlapping blocks and a matrix pattern is derived from the pixel values of those blocks. A watermark is obtained by scrambling the matrix pattern with Arnold Transform. The constructed watermark is embedded within the host image. The operation of embedding and extraction of watermark is done in high frequency domain of Discrete Wavelet Transform. This watermarking scheme deals with the extraction of the watermark information in the absence of original image. The proposed method is checked for different noise attacks like salt & pepper and Gaussian, median filtering and image adjustment. Peak Signal to Noise Ratio (PSNR) is computed to measure image quality. The proposed method exhibits high security and high imperceptibility features.

 


Keywords


Arnold Transform, Content based watermarking, Digital watermarking, Discrete Wavelet Transform, Image Authentication.

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References


Arvind kumar Parthasarathy and Subhash Kak, “An Improved Method of Content Based Image Watermarking” IEEE Transaction on broadcasting, Vol.53, no.2, June 2007, pp 468- 479.

Ramana Reddy et al, “Robust Digital Watermarking Of Colour Images Under Noise Attacks” International Journal of Recent Trends In Engineering, Vol.1, No. 1, May 2009.

Xiang-Gen Xia, Charles G.Boncelet and Gonzalo “Wavelet Transform based watermark for digital images” OPTICS EXPRESS, 1998 Vol.3, No.12, pp 497-511.

B Rafael C.Gonzalez, R.E.Woods, & Steven, “Digital Image Processing Using MATLAB”.

Sanjeev Kumar, Balasubramanian Raman and Manoj Thakur “Real Coded Genetic Algorithm based Stereo image Watermarking”, IJSDIA, 2009, Vol. 1 No.1 pp 23-33.

Hongmei liu, Junhui Rao, Xinzhi Yao “Feature Based Watermarking Scheme for Image Authentication”, IEEE, 2008, pp 229-232.

J.Dittmann, “Content-fragile Watermarking for Image Authentication”, Proc. Of SPIE, Security and Watermarking of Multimedia Contents III, vol.4314, pp.175-184, 2001.

R.B.Wolfgang and E.J.Delp. “A watermark for digital images”, Proceedings of the IEEE International Conference on Image Processing, Vol.3, pp.219-222, 1999.

Qiwei Lin, Zhenhui Liu and Gui Feng “DWT Based on Watermarking Algorithm and its Implementing with DSP”, IEEE Xplore, pp.131-134, Aug 2009.

Yuan Yuan, Decai Huang and Duanyang Liu “An Integer Wavelet based Multiple Logo-watermarking scheme” in Proc. of the First Int.Multi-Symposium on Computer and Computational Sciences, IEEE, Vol.2 pp.175-179, 2006 Electron. Eng., Osaka Univ., Osaka, Japan, 1993.


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