PSNR VALUE OF DIGITAL IMAGE WATERMARKING BY USING SINGULAR VALUE DECOMPOSITION-DISCRETE COSINE TRANSFORMATION

Vikas Chaubey, Chetan Kumar

Abstract: Digital Watermarking technique is now day needs to provide more robust for any image and also safe from many type of attack. Because every day by day need of multimedia techniques improve so another hand also creating of duplication problem. In this paper literature survey many techniques discuss year by year using for solving this problem. But according to my survey hybrid digital image watermarking using of Singular Value Decomposition and Discrete Cosine Transformation algorithm is best .by using of this hybrid digital watermarking possible to harmless our image from many type of attack and less PSNR value when you return back image same position. We are also calculating the value of Correlational Coefficient on different step size step

Keywords: Peak Signal noise ratio, Watermarking, Attacks, Singular Value Decomposition, Discrete Cosine Transformation.

DOI: https://doi.org/10.15623/ijret.2013.0209033