Wavelet Based Image Watermarking: Futuristic Concepts in Information Security

Abstract

In this paper, we have reviewed the state-of-art of the various wavelet based image watermarking techniques in spatial as well as in transform domain based on the robustness, imperceptibility, capacity and security. The embedding and extraction methods suggested by various researchers/scientists have been studied along with their advantages and disadvantages. We have also discussed some important research challenges and requirements for making the watermarking system more efficient. It will be more important for researchers to implement effective watermarking method. © 2014, The National Academy of Sciences, India.