1. An image processing system, comprising: an image processing unit to produce digital image data corresponding to an imaged subject; a memory card including plural regions to receive the digital image data and to store the digital image data in a respective one of the plural regions; a reading unit to read the digital image data stored in the memory card automatically when the stored image data reaches a predetermined level; a reducing unit to reduce the digital image data read by the reading unit and to produce a reduced digital image data; and a recording unit to record the reduced digital image data in the memory card.