Patent ID: 8144210

Claim:
A white balance adjustment device for adjusting white balance of an input image supplied sequentially in time, the white balance adjustment device comprising: a first target color component integrating unit that corrects a target color component from among a plurality of color components in a prescribed color space of a preceding input image based on a first value of a correction parameter, and integrates the corrected target color component for an integration target area constituting at least a part of the preceding input image to calculate a first target color component integration value; a second target color component integrating unit that corrects the target color component of the preceding input image based on a second value different from the first value of the correction parameter, and integrates the corrected target color component for the integration target area to calculate a second target color component integration value; a correction parameter determining unit that determines the first and second values to be used to correct the target color component of a subsequent input image by changing the first and second values according to magnitude relationship of the first and second target color component integration values to a benchmark value; and an adjusted image generating unit that generates an adjusted image of which white balance is adjusted through correction of the target color component of the subsequent input image based on a third value established between the first and second values determined by the correction parameter determining unit.