The present invention provides an image pickup device that can accurately adjust the black level value of the effective pixel area while correcting column noise contained in pixel signals of the effective pixel area. The image pickup device includes a solid-state image pickup element having a pixel part including an effective pixel area to be irradiated with light, a vertical light-shielded pixel area and a horizontal light-shielded pixel area where irradiation of light is shielded, a vertical scanning circuit, a horizontal scanning circuit, and an output circuit, a light-shielding section which shuts off light irradiated on the effective pixel area, a black level value detector which detects black level values of the vertical light-shielded pixel area, the horizontal light-shielded pixel area, and the effective pixel area shielded from light by the light-shielding section, based on pixel signals outputted from the output circuit of the solid state image pickup element, a comparator which compares the black level values, a noise component detector which detects a noise component, a noise corrector which corrects noise generated in the effective pixel area, based on the noise component detected by the noise component detector, and a controller which controls the noise component detector and the noise corrector, based on a comparison result of the comparator.
Image-pickup device and signal processing method