Raster process for classifying characters

摘要: A raster process for classifying presented characters into m classes, the features of each character in a class being variable, is disclosed accordance with teachings present invention. to be classified imaged onto field having n points. Electrical voltages are derived from point and selectively supplied no more than independent resistance networks said classes. Each network responds electrical thereto produce an output voltage representative form part class. Said comprised selected areas which should remain darkened class, light or two exhibit approximately equal degree lightened The produced by compared threshold level associated If below level, as belonging