IMAGE PICKUP APPARATUS THAT PERFORMS WHITE BALANCE CONTROL AND METHOD OF CONTROLLING THE SAME

摘要

An image pickup apparatus capable of properly performing white balance control on an image. A photographed image is divided into areas and a color evaluation value is acquired from each area. Infrared light is detected from each of areas of an object defined in association with the areas of the image. White balance correction is performed on the image using a mixed WB correction value calculated by mixing a first WB correction value calculated using the color evaluation values included in a white detection range set in a color space and a second WB correction value calculated using the color evaluation values acquired from areas each having an infrared light amount larger than a predetermined amount and included in a detection range of a predetermined color other than white, set in the color space.

主权项

1. An image pickup apparatus comprising:
an image pickup device; an acquisition unit configured to divide an image obtained by image pickup performed by said image pickup device into a plurality of areas, and acquire a color evaluation value from each area; an infrared light sensor configured to detect infrared light from each of areas of an object defined in association with the areas of the image; a calculation unit configured to calculate a white balance correction value using a plurality of color evaluation values acquired from the image; and a processing unit configured to perform white balance correction processing on the image using a mixed white balance correction value calculated by said calculation unit, wherein said calculation unit includes: a first white balance correction value calculation section configured to calculate a first white balance correction value, using, out of the plurality of color evaluation values, color evaluation values which are included in a white detection range set in a color space, a second white balance correction value calculation section configured to calculate a second white balance correction value, using, out of the plurality of color evaluation values, color evaluation values which are acquired from areas each having an infrared light amount larger than a predetermined amount, and are included in a detection range of a predetermined color other than white, set in the color space, and a mixed white balance correction value calculation section configured to calculate a mixed white balance correction value by mixing the first white balance correction value and the second white balance correction value.