In this paper, we propose a recognizing system of speed limit signs in a driver's scene by image processing. At first, the input image from the camera is processed by the contrast and extraction of the colors of road signs using color chart. The position and the size of the object sign are detected by the multi-layered neural network, and the characters in the sign are recognized. This system has the possibility to implement hardware system using parallel processing technology.
The road signs are sometimes overlooked by the driver. We can expect the reduction of the drive labor and the improvement of safety by uniting this system with a speed monitor of the car.