Automatic license plate recognition is one of the most important requirements of automatic traffic control systems. Hundreds or probably thousands of traffic violations occur during a day, and the image of the vehicle violating the traffic rules is captured by special traffic cameras. If human is required to analyze and enter the vehicle's license plate manually, too much time as well as human resources will be wasted. So, automatic license plate location and recognition using software is a matter of importance.In addition to traffic control, automatic license plate recognition can facilitate the process of vehicles' arrival and departure in institutes, organizations and terminals. Therefore, it makes the job of security guards easier, so both clients and organizations will feel more satisfied.