Wavelet based Reversible Image Watermarking with Logistic Encryption for Health Informatics Systems
B. Vijaya Kumar1, Smita Khond2
1Dr. B. Vijaya Kumar, Professor & Head, Department of CSE, Vidya Jyothi Institute of Technology VJIT, Hyderabad (Telangana), India.
2Smita Khond, Research Scholar, Pacific University, Udaipur PAHER (Rajasthan), India.
Manuscript received on 19 October 2019 | Revised Manuscript received on 25 October 2019 | Manuscript Published on 02 November 2019 | PP: 3567-3570 | Volume-8 Issue-2S11 September 2019 | Retrieval Number: B14430982S1119/2019©BEIESP | DOI: 10.35940/ijrte.B1443.0982S1119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Health Informatics systems preserves the patient’s digital records. Two techniques that help in this process are watermarking and encryption. In this paper a reversible image watermarking scheme with logistic encryption is presented. The reversible watermarking is utilizing the concept of integer wavelet transform. The image is divided into sub bands and then the binary data is hidden in these sub bands. The watermarked wavelet sub bands are passed through logistic encryption module which scrambles the coefficients. These coefficients are then sent to inverse wavelet transform for image reconstruction. This process helps encrypt the image though spectral scrambling, thus resulting in faster and better encryption. The proposed algorithm outperforms the exiting algorithms in terms of execution time and the level of encryption.
Keywords: Reversible Data Hiding, Encryption, Wavelet, Sub Bands.
Scope of the Article: Healthcare Informatics