White balance correction including indicative white color determination based on regions in a divided image

摘要

A white balance correction apparatus may include a dividing unit, a white evaluation unit, a white balance correction unit, and a camera orientation discrimination unit. The dividing unit divides an image into a plurality of divided areas. The white evaluation unit determines whether image data within every divided area is indicative of a color white according to white detection regions in a color temperature range defined based on a position of each divided area in the image. The white balance correction unit performs a white balance correction based upon image data determined to be indicative of the color white. The camera orientation discrimination unit discriminates orientation of a camera. In accordance with the discriminated orientation, the white evaluation unit changes a combination of position of each divided area and condition used.