1. An image-capturing device comprising: an image sensing unit configured to acquire a first image of a scene; a display unit configured to display the first image of the scene; a dividing unit configured to receive a user selection of a quantity of regions and divide the scene into a plurality of regions according to the user selection of the quantity of regions; an exposure control unit configured to receive a user selection of a first level of exposure for a first region of the plurality of regions, and receive a user selection of a second level of exposure for a second region of the plurality of regions; and a control unit configured to adjust a level of exposure of the first region to the user selected first level of exposure and adjust a level of exposure of the second region to the user selected second level of exposure, wherein the exposure control unit calculates a difference between values in a first luminance histogram, which indicates luminance histogram values before the level of exposure of the first region and the level of exposure of the second region are adjusted, and values in a second luminance histogram, which indicates luminance histogram values after the level of exposure of the first region and the level of exposure of the second region are adjusted, and wherein the control unit is configured to instruct the image sensing unit to select between capturing an image of the scene in one capture and capturing an image of the scene in multiple captures according to the calculated difference.