An apparatus configured to divide a captured image into a plurality of regions and carry out imaging under a different exposure condition for each of the regions, includes an acquisition unit configured to acquire an exposure value for each of the regions in the captured image, a detection unit configured to detect a motion region based on the captured image, and a determination unit configured to determine an exposure time and a gain based on the exposure value for each of the regions and a result of detection of the motion region, wherein the determination unit sets a limitation on an adjustment range of at least any of the exposure time and the gain based on the result.