Image Authentication and Protection based on DWT Watermarking Technique

Abstract

Due to the rapid development in communication and multimedia technology, different techniques are used for copyright protection and monitoring illegal copying of these media. One of the most important techniques is digital watermarking. As a result of the development in data transfer technology a cross multimedia and internet, it has became possible to access and copy these information in unauthentic manner. This leads to penetrate digital multimedia security problem. In this research I used the technique DWT discrete wavelet transformation is used in images and it gives good results in increasing the amount of generated information, Increase the efficiency of the image, increase reliability, and reduce the uncertainty surrounding some of the features in the images which are not clear. The method efficiency is measured using Peak Signal - to - Noise Ratio (PSNR (and mean squared error (MSE).