Work place: Mekapati RajaMohan Reddy Institute of Technology & Science, Udayagiri, Nellore, A.P, India
E-mail: busireddy100@gmail.com
Website:
Research Interests: Applied computer science, Computer systems and computational processes, Computer Architecture and Organization, Theoretical Computer Science
Biography
Dr. B.V.Ramana Reddy received B.Tech Degree from S.V.University, Tirupati, A.P., India in 1991. He completed M.Tech. in Computer Science from IPGSR, JNT University, Masab Tank, Hyderabad, India in 2002 and received PhD from JNTUA, Anantapur,A.P., India in 2011. He has nearly 18 years of teaching and industrial experience. He is currently working as Professor & Principal, Mekapati RajaMohan Reddy Institute of Technology & Science, Udayagiri, Nellore, A.P. He is a life member of Indian Science Congress Association. He published more than 15 papers in National and International Journals and conferences.
By G.RoslineNesakumari V.Vijayakumar B.V.Ramana Reddy
DOI: https://doi.org/10.5815/ijcnis.2013.03.06, Pub. Date: 8 Mar. 2013
The present paper provides a new mechanism with two stages for efficient authentication based on Honey Comb Polynomial Interpolation (HCPI) and Morphological Border Sorted Pixel Value Difference (MBSPVD) scheme. A simple polynomial interpolation technique on new hexagonal structure called Honey Comb structure (HCS) is used for generating the key of the digital watermark. The polynomial interpolation gives a high secured key, which is difficult to break. HCS is used in the present paper to select pixel positions for generating the Digital Watermark key (DWK). The significant factor of the present method is, the digital watermark is generated by using DWK. The importance of HCS representation is that it possesses special computational features that are pertinent to the vision process. The HCS has features of higher degree of circular symmetry, uniform connectivity, greater angular resolution, and which leads to reduce storage and computation in image processing operations. The DWK is placed in the image by using MBSPVD method. Its guarantees high authentication, robustness, security and copyright protection. The Lagrange Polynomial interpolation (LPI) is used for retrieving the digital watermark from the DWK. The LPI accomplish the aim of image authentication and protection without reducing the image quality. The proposed HCPI-MBSPVD is tested with various attacks and compared with various existing image authentication and copyright protection methods. The comparisons and results indicate the efficacy of the proposed method.
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