This book is aimed at final year and postgraduate students with some background in computer science, and researchers requiring a brief introduction toeither area: knowledge-based systems or image processing. The book is in three parts, parts 1 and 2 are designed to provide overviews of each of the areas (each part equating to a half semester course), part III giyes a report on current work in which the two converge before describing some of the issues involved in designing future knowledge-based image processing systems. Sample questions are also provided for parts 1 and 2 in an appendix (A).This book attempts to give an insight into the two areas of research and current systems, and suggests a way forward for designing future systems.