1. An image transforming device for transforming a part of a captured image of an object based on a predetermined type of transformation, the image transforming device comprising: an obtaining unit that obtains the captured image of the object; a detecting unit that detects characteristic information from the captured image of the object, the characteristic information characterizing the object; a control point setting unit that sets control points and movement information of the control points for the captured image, based on the characteristic information and on an arrangement pattern and a movement pattern each corresponding to the predetermined type of transformation; a grid point setting unit that sets grid points for the captured image, and setting movement information of the grid points based on the control points and the movement information of the control points; and an image transforming unit that transforms an image area by moving the grid points based on the movement information of the grid points, the image area being a quadrangle, the grid points being four vertices of the quadrangle.