Patent ID: 7173743

Claim:
An apparatus for reading an image, the apparatus comprising: (a) a reading device having a plurality of photoelectric conversion cells, which receive light transmitted through or reflected from an original, and produce electronic information representing the image as a plurality of pixels; and (b) a data processing system electronically connected to the reading device and receiving the electronic information therefrom, the data processing system including a memory and logic, the logic defining the electronic information as being divided into a plurality of areas, with each area comprising a plurality of the pixels, and corrects for reading discrepancies in the reading device by applying data correction values to the electronic information corresponding to each area, with the data correction values stored in the memory, and previously obtained by reading a predetermined image of at least one type corresponding or similar to the original, wherein the original is a photographic film, and the predetermined original is a photographic film corresponding or similar to the photographic film of the original, exposed to an amount of light corresponding to an amount of gray in the original.