One-pass preprocessing algorithm for real-time image processing system

Preprocessing, which plays an important role in pattern recognition, is investigated from the point of view of real-time processing, and a set of one-pass processing algorithms are described. All of the algorithms, which are based on easy hardware implementation, only require one single cycle of parallel operations per image frame, and the operations are confined in a window of size 3×3. Computer simulation shows that the algorithms are efficient and easily realized in hardware