The Xilinx system generator, which provides a novel model based approach of carrying out various image processing applications. The model is prepared using Xilinx blockset that has a potential to be implemented on FPGA Devices. Multimedia authentication techniques are required in order to ensure trustworthiness of multimedia data. They are usually designed, based on two kinds of tools, Digital signature or Watermarking. Frequency domain based approach of watermarking is introduced in authentication system in order to get more feasibility in terms of better concealing and robustness of...