"Image Processing" forms part of "The Essex series in Telecommunication and Information Systems" which provides a range of texts covering key topics in the area. Based on the series of short courses offered by Essex University, the content of the texts reflects the attendance on those courses by both practising engineers and postgraduate students. "Image Processing" contains contributions from both academia and the broadcasting and telecommunications authorities. It is an up-to-date book combining the theory and implementation of image processing in the field of telecommunications and computer-communications. As well as treating the basic image-processing techniques of sampling, filtering and data compression, the book takes a forward-looking view of developing ideas in the field. Among these are knowledge-based approaches to image-processing, image-interpretation and transmission over new forms of telecommunication network. Applications in areas such as broadcasting, video conferencing, photovideotex, robotics and industrial image processing are considered.