An image processing apparatus includes a change unit configured to change a driving state of an image sensor for capturing an image signal in response to an operation for changing the driving state of the image sensor, and a flicker correction unit configured to correct an image signal based on a flicker component detected from image signals of a frame captured a predetermined number of frames before the frame of the image signal to be corrected, wherein the flicker correction unit is configured to change the predetermined number when the driving state of the image sensor is changed by the change unit.