To generate images to be an appropriate hue even in the case that a plurality of light sources coexist.

A first WB correction value corresponding to a first light source is determined for image signals stored in a memory 102 first, and a second WB correction value corresponding to a second light source is determined next. Then, image development is performed using the first WB correction value to generate developed image signals Yuv1 and image development is performed using the second WB correction value to generate developed image signals Yuv2. Next, color evaluation value of respective blocks of the image signals stored in the memory 102 are calculated, and a combination ratio is calculated on the basis of a difference between the color evaluation value of the respective blocks and the color evaluation value of white of the second light source. Then, the developed image signals Yuv1 and the developed image signals Yuv2 are composited on the basis of the combination ratio.