1. A method for scanning a printed image by a scanner, comprising: (a) storing in the scanner a plurality of optimum noise filter settings corresponding to a plurality of classes of printers; (b) identifying a class of a printer that was used to print the image; (c) retrieving, from the plurality of optimum noise filter settings, an optimum noise filter setting corresponding to the class of the printer identified in step (b); and (d) scanning the printed image using the optimum noise filter setting.