A COPYRIGHT PROTECTION OF DATA OVER INTERNET BY USING WATERMARKING

Neeru Singla, Dr. Rajbir Kaur

Abstract


As the growing demand for security of copyright protection against unauthorized attacks. It is necessary to protect the ownership of the data mainly during the transferring of data, which leads to call the embedding of watermark to the data for security. This paper proposed a combined algorithm of Discrete Wavelet Transform [DWT]-Singular Value Decomposition [SVD]. This combined technique gives a better authentication against various and common unauthorized attacks. Here we embed the invisible watermark to the host image by using this combined technique. We use the R plane of the host image to embed the watermark. Firstly , we split the three color bands named as R, G and B Band. And select the R band for embedding the watermark. The watermark can be extracted at the receiver side further by splitting the three color bands and by applying the Inverse Discrete Wavelet Transform(IDWT) and Inverse Singular value Decomposition. In this paper four level decomposition has been done. The various experimental results have been shown in this paper which gives the better robustness against various unauthorized attacks.

Keywords


Watermarking, DWT-SVD; Embedding; key matrix; Extracting; color bands; host image

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DOI: https://doi.org/10.26483/ijarcs.v9i2.5521

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