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Robust and reversible watermarking scheme in DFT domain | IEEE Conference Publication | IEEE Xplore

Robust and reversible watermarking scheme in DFT domain


Abstract:

Digital watermarking is a fast growing research area nowadays. An invisible signal called watermark is added into the cover data. Using this watermark, many security serv...Show More

Abstract:

Digital watermarking is a fast growing research area nowadays. An invisible signal called watermark is added into the cover data. Using this watermark, many security services can be provided to host data e.g. illegal copying of data can be avoided, any tempering with the data can be stopped and unauthorized users misusing the data can be caught along with other securities. In this paper, robustness and reversibility of watermarking scheme in Discrete Fourier Transform (DFT) domain based on Code Division Multiple Access (CDMA) is discussed by comparing with the robustness and reversibility in Discrete Cosine Transform (DCT) and Discrete Wavelet Transform (DWT). Experimental results have shown DFT domain gives better robustness than DCT and DWT. In the proposed scheme, spreaded watermark is arithmetically added, in the form of vectors, to Fourier coefficients. Watermark is detected by calculating inner product with the spreading codes. After detection, the watermark removal process can easily be done even without using the original watermark.
Date of Conference: 15-17 December 2014
Date Added to IEEE Xplore: 26 October 2015
ISBN Information:
Print ISSN: 2162-7843
Conference Location: Noida, India

References

References is not available for this document.