An image processing apparatus includes a detection unit configured to detect a first region in which a foreground object is present with respect to a plurality of captured images, a retention unit configured to retain a first background image, a generation unit configured to generate a second background image based on portions of each of the plurality of captured images which are not detected as a first region, and an output unit configured to select one of the first background image and the second background image based on a property of the second background image, and configured to output, based on the selected background image and the first region, an image in which the foreground object is obscured.