The localization and interpretation of traffic signs by means of a wise-artificial system is one of the several applications of the recognizing-image techniques. In this work we present techniques addressed to the correct and efficient localization of traffic signs from real images, obtaining information about their location, colour, shape, size and orientation. Moreover, it is shown that colour models non-dependent of illumination combined with non-dimensional features are able to discriminate shapes and provide good results in the traffic signs detection. Several experimental results concerning the application of previously mentioned techniques are shown later on 1 . KEY WORDS Traffic signs, colour detection techniques, shape detection, classification algorithm.