The evaluation value detection means which calculate color evaluation value from the picture signal of the white balance control

摘要

PROBLEM TO BE SOLVED: To provide a white balance controller and a control method for attaining accurate white balance correction.;SOLUTION: The white balance controller is provided with a detection threshold setting part 109 which sets a threshold in an evaluation value detection part 107 which calculates a color evaluation value. The detection threshold setting part 109 sets the threshold in an image signal used for calculation of the color evaluation value in the evaluation value detection part 107. The evaluation value detection part 107 calculates the evaluation value using image signals satisfying the threshold for every block obtained by dividing an image when the threshold is set. A white balance control part 308 calculates a white balance gain using the evaluation value.;COPYRIGHT: (C)2009,JPO&INPIT