Patent ID: 6317221
Filing Date: 2001-11-13
Classification: G03B,H04N

Abstract:
A method of processing a photographic film having a plurality of frames using an image scanner having an image sensor including performing a prescanning operation of the film at a coarse image resolution to generate prescanned data and subsequently performing a finer resolution scanning operation that uses the prescanncd data, comprising:setting a charge accumulation time of the image sensor for each of a plurality of colors RGB to a reference time T.sub.0 ;obtaining black and white levels for each frame from signals from the prescanning operation;determining charge accumulation times T.sub.1, T.sub.2 and T.sub.3 of the image sensor from the black and white levels, for each of the colors RGB for each of the frames; andperforming the finer resolution scanning operation with the charge accumulation times T.sub.1, T.sub.2 and T.sub.3.