A network camera includes a pan driving unit and a tilt driving unit for changing a shooting direction of an imaging unit. A detection unit detects rotation angles of movable units to be driven by the pan driving unit and the tilt driving unit. A pan/tilt control unit corrects a target position of the movable unit according to a correction value according to the detected rotation angle and controls each of the driving units using a value after the correction. In addition, when masked image drawing for processing an image is performed so that a partial image of a predetermined position is not visible in the image captured by an imaging unit, an image processing unit performs a process of correcting a rotation angle detected by the detection unit according to the correction value and drawing a masked image at a mask drawing position after the correction.