Robust Video Watermarking Algorithm Using Discrete
D. Hari Hara Santosh, Naveen Kumar Sarva, G Lakshmi Sunitha · 2013
Everyday very huge amount of data is embedded on digital media or distributed over the internet. The data so distributed can easily be replicated without error, putting the rights of their owners at risk. Even when encrypted for distribution, data can easily be decrypted and copied. One way to discourage illegal duplication is to insert information known as watermark, into potentially vulnerable data in such a way that it is impossible to separate the watermark from the data. These challenges motivated researchers to carry out intense research in the field of watermarking. A watermark is a form, image or text that is impressed onto paper, which provides evidence of its authenticity. Digital watermarking is an extension of the same concept. There are two types of watermarks: visible watermark and invisible watermark. This project concentrates on implementing watermark in video. The main consideration for any watermarking scheme is its robustness to various attacks. Watermarking dependency on the original image increases its robustness but at the same time watermark should be made imperceptible. In this project, a robust video watermarking scheme using discrete wavelet transform (DWT) domain is proposed. The quality of the watermarked video is enhanced by using wavelet transform. Experimental results demonstrate that it is robust by calculating the peak signal to noise ratio (PSNR) between