Bonfring International Journal of Advances in Image Processing

Online ISSN: 2277-503X | Print ISSN: 2250-1053 | Frequency: 4 Issues/Year

Impact Factor: 0.245 | International Scientific Indexing(ISI) calculate based on International Citation Report(ICR)

Comparison of DCT-SVD Based Image Watermarking Techniques Implemented for Gray Scale and Color Images

B. Chitra and Dr.V. Vijayakumari

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Abstract:

Data security is one of the important requirements in present day communication system. Data authentication can be done using watermarking techniques. Recently several watermarking techniques have been proposed. The drawbacks of these techniques are less robustness, less fidelity and degradation in image quality. Although watermarking applications are used in copyright protection, broadcast monitoring, and usage control, this work is implemented for copyright protection using two dimensional DCT, and singular value decomposition (SVD) technique. In this technique, the singular values of watermark image are embedded into host image to get watermarked image. This watermarking ray ban wayfarer offerte technique is implemented for gray scale and color image of different sizes and the comparative analysis is made based on the results produced when the image is subjected to different types of attacks.

Keywords: Watermarking, Copyright Protection, Attacks, Singular Values

Volume: 2 | Issue: Special Issue on Communication Technology Interventions for Rural and Social Development

Pages: 31-35

Issue Date: February , 2012