Image processing is often presented as a two dimensional version of signal processing, and as such, assumes for its background several years of undergraduate engineering-style mathematics. But such heavy mathematics does not form the background of many students of computer science. In Australia, some tertiary courses are phasing formal mathematics out of their computer science courses completely. This means that the effective teaching of image processing to students of computer science must use as little mathematics as possible. In this paper we discuss the undergraduate subjects taught at Victoria University of Technology (VUT), and our methods of keeping the mathematics in them to a minimum.