An image processing apparatus executes distortion compensation based on distortion compensation information associated with desired distortion compensation and an angle of view of an image currently being displayed on a display device. Distortion compensation can be performed stepwise without use of any other distortion compensation information until a distortion compensated state is realized based on distortion compensation information stored in a memory unit. Distortion compensation based on a level received by an operating unit is provided. An image having undergone distortion compensation can be displayed. The number of distortion compensation information items need not be increased proportionally to the number of levels for a magnitude of distortion compensation to be implemented since distortion compensation can be stepwise implemented from the current distortion compensation until a magnitude of distortion compensation is realized based on specific distortion compensation information.