The theory of designing the optical-electronic image processing computer systems has been presented. A model of parallel image processing system has been considered, that is based on the principle of function decomposition. The implementation possibilities of different image processing operations with the help of optical and electronic computer means have been analyzed. A structure model of computer system has been examined, that is a conveyor of parallel computer devices. The evaluation of time outlay in the system, while processing an image or a series of them has been made. The differences of time outlay from conveyor length change and the correlation of optical and electronic devices and processing time in them have been exposed. The designing method of image processing systems in static mode has been elaborated. There are presented the results of investigations of the influence of the median square deviation, the influence of time of the processing in the modules on the throughput capacity of the system under the different electronic and optical modules quantity. According to the results of investigations the recommendations of increasing the system's throughput the capacity are formulated. On the basis to these recommendations, the system design method of image processing in the dynamic mode is elaborated.