An image capturing apparatus includes an image-capturing device having an effective pixel area formed of a plurality of areas, the areas having different dark current characteristics. The image-capturing device also includes a light-shielded pixel area, a storage unit configured to prestore a correlation between dark current differences of the plurality of areas and dark current of the light-shielded pixel area, a detector, a dark current difference obtaining unit, and a correction processor. The dark current differences are obtained from the dark current of the light-shielded pixel area detected during image capture on the basis of the stored correlation, and a video signal captured in the effective pixel area is corrected based on the obtained dark current differences.