An image processing apparatus acquires and transforms first plane image data representing a space having a depth. The apparatus includes a vanishing point estimating unit for estimating a vanishing point of the first plane image data, an angle-of-view estimating unit for estimating an angle of view of the first plane image data, and an image generating unit for generating, on the basis of the vanishing point estimated by the vanishing point estimating unit and the angle of view estimated by the angle-of-view estimating unit, second plane image data corresponding to a case in which the first plane image data is projected onto a portion corresponding to the angle of view on a curved surface of a cylinder having a predetermined radius by using, as a reference point, a position being the center of the cylinder and being equal in height to the vanishing point.