Abstract: A captured image processing system is provided. The captured image processing system includes a portable terminal apparatus and an image output apparatus, each of which are communicable with the other. The portable terminal apparatus captures an image of an object and transmits output target image data obtained by capturing the image to the image output apparatus so as to cause output of this captured image from the image output apparatus. The image output apparatus carries out image processing to the received output target image data, and outputs (a) corrected image data, or (b) an image indicated by the corrected image data. The captured image processing system allows easy output of necessary regions included in an image captured by the portable terminal apparatus, and allows output of an image having no geometric distortion even if image capture is carried out obliquely with respect to a captured image object.