Lasse Koskinen, Heikki Huttunen, Jaakko T. Astola. Text enhancement method based on soft morphological filters. In Luc M. Vincent, Theo Pavlidis, editors, Document Recognition, San Jose, CA, USA, February 6, 1994. Volume 2181 of SPIE Proceedings, pages 243-253, SPIE, 1994. [doi]
Abstract is missing.