Patent ID: 7995111
Filing Date: 2011-08-09
Classification: H04N

Abstract:
1. An image pickup apparatus comprising: a memory which stores brightness of an object picked-up by an image pickup device, wherein the stored brightness is obtained during an image pickup by the image pickup device; a white balance control device which controls white balance based on a gain correction signal; and an extracting range changing device which moves an extracting range of an image signal regarded as an achromatic signal, output from said image pickup device, based on a current brightness and the stored brightness; wherein said white balance control device controls on a basis of the gain correction signal obtained by comparing a reference image signal with the image signal extracted from the range moved by said extracting range changing device wherein after the stored brightness is obtained, a turning off operation of a power supply is implemented, and after a turning on operation of the power supply is implemented, the current brightness is obtained.