Authors : T. Sujatha and K. Geetha
Abstract: The main objective of image watermarking is to protect secret information in a digital medium without compromising robustness. There are many approaches introduced regarding the importance of utilizing medical, military and natural images for image watermarking procedure. Reversible watermarking is appreciated that the original media can be recovered without any loss of information after extracting stego-data. With an aim to provide higher security and robustness, certain investigations have been done on reversible image watermarking. The scheme proposed in this research not only outperforms other methods with respect to a variety of attacks but still maintains a satisfactory image quality. This research mainly addresses on privacy, reversibility, payload and robustness related goals. Considering these challenges, three parts of image watermarking techniques, namely proposed Bi-orthogonal Wavelet Transform and Importance Measure Model (BWT and IMM), proposed Dynamic Prediction Error Integrated Reversible Image Watermarking (DPEIRIW) and proposed Multi Wavelet Transform and Oppositional Particle Swarm Optimization (MWT-OPSO) are proposed to improve the data hiding performance.
T. Sujatha and K. Geetha, 2020. Certain Investigations on Reversible Image Watermarking. Asian Journal of Information Technology, 19: 198-206.