Survey of Digital Image Watermarking Techniques to achieve Robustness

Digital image watermarking is widely used for copyright protection of digital information. The effectiveness of a digital watermarking technique is indicated by the robustness of embedded watermarks against various attacks. So watermarking algorithms normally prefers robustness. Because of a robust algorithm it is not possible to eliminate the watermark without rigorous degradation of the cover content. In this paper we review few different digital image watermarking techniques to achieve robustness. This paper focuses on the various domains of digital image watermarking technique. Also describing few techniques to achieve robustness and comparing those techniques against robustness for attacks