A system for performing edge enhancement of mixed low resolution image files employs a binarization and sorting unit to sort data that is indicative of binary data from the mixed low resolution image input file. The sorted binary data is then supplied to a binary data edge enhancement processor for edge...http://www.google.com/patents/US5600761?utm_source=gb-gplus-sharePatent US5600761 - Resolution enhancement system for combined binary and gray scale halftone images
