1. An image capturing apparatus comprising: a capturing unit configured to capture an image; a detection unit configured to detect an object from the captured image; a generating unit configured to generate a luminance distribution of the captured image; a calculating unit configured to calculate, based on the luminance distribution, an exposure amount used when performing autoexposure bracketing that captures a plurality of images at different exposures; a determining unit configured to determine whether or not to perform the autoexposure bracketing using the calculated exposure amount; and a correcting unit configured to correct the calculated exposure amount based on feature information of the object detected by the detection unit.