Patent ID: 6018599
Filing Date: 2000-01-25
Classification: H04N

Abstract:
A color image reading apparatus comprising:holding means for holding color negative film;converting means for converting light information into a plurality of color component signals by using a plurality of photoelectric converting elements;first memory means for storing level-adjusting data which is used for adjusting the color component signals based on a characteristic of an unexposed portion of the color negative film;level-adjusting means for adjusting the color component signals by using said level-adjusting data;second memory means for storing correction data produced from a plurality of reference color component signals which are converted by said converting means from light information produced while said holding means does not hold the color negative film and which are then adjusted by said level-adjusting means using said level-adjusting data to adjust the color component signals based on a characteristic of an unexposed portion of the color negative film; andcorrecting means for correcting color component signals converted by said converting means from light information produced while said holding means holds the color negative film by using said correction data stored in said second memory means.