Now a days we see that various types of accidents happens on the road. In India many accidents are caused due to human negligence. License Plate detection and recognition is a key technique in most of the traffic related applications such as signal jumping road traffic monitoring, airport gate monitoring, speed monitoring and Automatic parking access control .It is simply the ability to automatically extract and recognition of the vehicle license number plate’s character from a captured image .In this paper, we try to give an enhance view of the signal jump detection and recognition of number plate.