Patent ID: 7391448

Claim:
An imaging device, comprising: a storage unit which pre-stores information representing a relation between a dark current component being superimposed on a pixel signal of each of effective pixels and an output signal of each of optical black pixels, said effective pixels being arranged in a predetermined effective pixel area on an imaging sensor, and said optical black pixels being arranged in a predetermined optical black area which is a different area from said effective pixel area on the imaging sensor; a dark current obtaining unit which obtains dark current component superimposed on said pixel signals of each of said effective pixels based on both said information stored in said storage unit and the output signal of each of said optical black pixels; and a correcting unit which corrects said dark current component obtained by said dark current obtaining unit according to said pixel signal, wherein the information stored in said storage unit is information representing relations between the dark current component of each of said effective pixels on said effective pixel area and the output signal of one of said optical black pixels respectively arranged in corresponding position to that of each of said effective pixels on said optical black area.