1. A fingerprint identification system comprising a registration apparatus and an identification apparatus, said registration apparatus comprising: a first fingerprint sensor for reading a fingerprint in a first region of a human finger to output an image signal representing an image of the fingerprint; first image data generating means for generating image data of the fingerprint based on the image signal output from said first fingerprint sensor; and data output means for outputting the image data generated by said first image data generating means; said identification apparatus comprising: data input means for receiving the image data output from said data output means; storage means for storing the image data received by said data input means; a second fingerprint sensor for reading a fingerprint in a second region of a human finger, which is smaller than said first region, to output an image signal representing an image of the fingerprint; second image data generating means for generating image data of the fingerprint based on the image signal output from said second fingerprint sensor; and image identification means for comparing the image data generated by said second image data generating means against the image data stored in said storage means to determine whether the fingerprints represented by the respective image data coincide with each other.