An image processing apparatus is provided. The image processing apparatus accepts selection of an image that is to be processed, from among a plurality of images in which one scene is captured respectively at exposures that are different from each other, extends a first output range corresponding to an input range of brightness values of the selected image so as to be wider than a second output range that is the output range when the image is not selected, and outputs a combined image generated by combining the selected image for which the output range of brightness values has been extended to the first output range, and the unselected image.