Techniques in computer art

The major techniques in computer art in use so far are classified into six categories and evaluated. Among these categories, we discuss the function method in detail by showing pictures generated by our system ART-3, a small system based on the function method. By this means we show the usefulness of mathematics in this area and demonstrate the enormous possibilities of computer art. Furthermore, on the basis of our experience of using ART-3 the role of artists in technology-aided art is briefly discussed.