Abstract Owing to the development of latest technologies in the areas of communication and computer networks, present day businesses are moving to the digital world for effectiveness, convenience and security. There are a number of applications in healthcare industry like tele-consulting, tele-surgery and tele-diagnosis. Today’s healthcare involves some security risks as these provide new ways to store, access and distribute medical data. Watermarking can be seen as an additional tool for security measures. Pseudorandom noise sequence image watermarking algorithm which is blind (it does not require the presence of input image for detection) and robust is also analyzed. The watermarking scheme embeds the binary logo in the Discrete Wavelet Transform (DWT) domain as in the sub-band level. Consequently, the simulation results show that the proposed algorithm achieves higher security and robustness against various attacks like Set Partitioning in Hierarchical Trees (SPIHT) and JPEG compression, adding Gaussian noise and salt and pepper noise, Gaussian filtering and average filtering. The promising experimental results are Peak Signal-Noise Ratio (PSNR) and Normalized Correlation (NC) value is reported and also by using Compression Techniques (CT) scan and MRI medical images.

References

[1] Abu Sa'dah Y., Al-Najdawi N., and Tedmori S., Exploiting Hybrid Methods for Enhancing Digital X-Ray Images, The International Arab Journal of Information Technology, vol. 10, no. 1, pp. 28-35, 2013.

[2] Cox I. and Miller M., A Review of Watermarking and the Importance of Perceptual Modelling, in Proceedings of the Conference on Human Vision and Electronic Imaging, San Jose, pp. 92-99, 1997.

[3] Kay S. and Izquierdo E., Robust Content Based Image Watermarking, in Proceedings of Workshop on Image Analysis for Multimedia Interactive Services, Finland, 2001.

[4] Kung C., Chao S., Tu Y., Yan Y., and Kung C., A Robust Watermarking and Image Authentication Scheme used for Digital Content Application, Journal of Multimedia, vol. 4, no. 3, pp. 112-119, 2009.

[5] Lin S., Shih S., and Guo J., Improving the Robustness of DCT-based Image Watermarking Against JPEG Compression, Computer Standards and Interfaces, vol. 32, no. 1-2, pp. 54-60, 2010.

[6] Liu J., Lou D., Chang M., and Tso H., A Robust Watermarking Scheme using Self-Reference Image, Computer Standards and Interfaces, vol. 28, no. 3, pp. 356-367, 2006.

[7] Ramesh S., Shanmugam A., and Gomathy B., Implementation of Watermarking for a Blind Image using Wavelet Tree Quantization, International Journal of Computer and Network Security, vol. 2, no. 3, pp. 50-55, 2010.

[8] Swanson M., Kobayashi M., and Tewfik A., Multimedia Data-embedding and Watermarking Techniques, in Proceedings of IEEE, vol. 86, no. 6, pp. 1064-1087, 1998.

[9] Wolfgang R., Podilchuk C., and Delp E., Perceptual Watermarks for Digital Images and Video, in Proceedings of the IEEE, vol. 87, no. 7, pp. 1108-1126, 1999.

[10] Ye J. and Tan G., An Improved Digital Watermarking Algorithm for Meaningful Image, in Proceedings of International Conference on Computer Science and Software Engineering, Hubei, pp. 822-825, 2008. 0 0.2 0.4 0.6 0.8 1 1.2 0.10.20.30.40.50.60.70.80.91 NC Noise density Salt & Pepper NoiseProposedAlgorithm Liu J.L et al Ye J.X andTan.G Kung C.M etal lin S.D et al 776 The International Arab Journal of Information Technology, Vol. 15, No. 4, July 2018 Ramesh Muthiya received the B.E degree in Electronics and Communication Engineering from National Institute of Technology (Formerly Regional Engineering College), Trichy, Bharathidhasan University, India in the year 2001 and the M.E, degree in Applied Electronics from R.V.S. College of Engineering and Technology, Dindugal, Anna University, India in the year 2004. He has completed his Ph.D. degree in Image processing from Anna University, Chennai, India in the year 2012. Currently, he is working as Professor in the Department of Electronics and Communication Engineering, St.Martin s Engineering College, Hyderabad and also 2 years worked as Professor in the Department of Electronics and Communication Engineering, E.G.S Pillay Engineering College, Nagapattinam and also 10 years worked as Associate Professor in the Department of Electronics and Communication Engineering, Bannari Amman Institute of Technology, Sathyamangalam, India. His current research focuses on Image Processing, Low Power VLSI Design and Soft Computing. He has published 74 articles in National and International Journals and more than 28 papers in International and National Conferences. He is life member of ISTE and IETE. Gomathy Balasubramanian received the B.E degree in Computer Science and Engineering from Sethu Institute of Technology, Madurai, Madurai Kamaraj University, India in the year 1999 and the M.E, degree in Computer Science and Engineering from Bannari Amman Institute of Technology, Sathyamangalam, Anna University, India in the year 2009. She has completed her Ph.D. degree in Data Mining from Anna University, Chennai, India in the year 2014. Currently, she is working as Associate Professor in the Department of Computer and Science Engineering, Bannari Amman Institute of Technology, Sathyamangalam, India. She has published 34 articles in National and International Journals and more than 22 papers in International and National Conferences. She is member of ISTE. Sundararajan Paramasivam received the B.E. Degree in Electronics and Communication from Kongu Engineering College, Perundurai, India in 1993 and the M.E. Degree in Applied Electronics from the Government College of Technology, Coimbatore, India in 1999. He has completed his Ph.D. in Anna University, Chennai in the area of Security in Mobile ad-hoc Networks. Currently, he is working as Professor in the Department of Electronics and Communication Engineering, Sri Shakthi Institute of Engineering &Technology, Coimbatore and also 18 years worked he is working as Professor in the Department of Electronics and Communication Engineering, Bannari Amman Institute of Technology, Sathyamangalam, India. He has published 63 articles in National and International Journals and more than 36 papers in International and National Conferences. His current research focuses on mobile ad hoc networks and wireless security. He is member of IE and ISTE.