Hardware software co-design simulation modeling for image security concept using Matlab-Simulink with Xilinx system generator

In recent scenario, the hardware design is becoming a very complex task because programmable hardware like FPGA has become complex with regards to the increasing number of transistors. In this paper, an overview of tool for model based hardware design is mentioned. This tool enable to describe an algorithm in a model based description without going in to complex low-level VHDL or Verilog description. It is efficient in translating model based description to HDL automatically. These kind of high level tools bring hardware implementation such as FPGA to a wider aspects with increasing designing productivity. In this paper an image security model using Matlab-Simulink with Xilinx system generator is developed. The use is to secure image, i.e. secret image is kept behind the cover image. The concealed image is imposible to retrive from the cover image and user can only see cover image.