An image processing apparatus is provided with: an acquirer configured to obtain an image including a first area and a second area, wherein the first area has a distortion that increases with increasing distance from an image center and the second area is in a predetermined angle range with respect to a straight line passing through the image center and extending in a horizontal axis, and the second area has a smaller distortion than that of the first area; and a corrector configured to perform a distortion correction process on the first area and but not to perform the distortion correction process on the second area.