Design Implementation and Analysis of Image Watermark System using selected Discrete Cosine Transform

In recent days the computer communication and the usage of multimedia data is enormous over the Internet, that may be easily copied & distributed from one to another. So protection of these data is very   important. A robust watermarking embedding system must be developed  with high PSNR Values. In this paper, a watermarking system using DCT transformation technique with image padding and  selector  is proposed. The results assure that the proposed algorithm gives high PSNR value  and least MSE value.