A new edge enhancement on halftone image

This paper presents a new algorithm for improving the qualities of edge in halftone image. The algorithm is designed to diminish discontinuous and jaggy artifact on edges of halftone image without original image data. And our proposed algorithm does not depend on the special halftoning scheme since no inverse halftoning is included. It provides a possible way of low-cost processing directly on the halftone image which is independent of the original image. This algorithm can be typically applied to improve print quality for printers. The performance of the algorithm is demonstrated on various samples. It has been implemented and embedded into some printing apparatus.