A captured image processing system includes a portable terminal apparatus and an image output apparatus. The portable terminal apparatus captures images consecutively more than once while detecting a change in position of the portable terminal apparatus during the image capture (S10), and transmits, to the image output apparatus, (i) a plurality of pieces of captured image data and (ii) motion information on the change in position which change has been detected for each of the plurality of pieces of captured image data (S15). The output apparatus receives, from the portable terminal apparatus, the plurality of pieces of captured image data and the motion information (S20), carries out, in accordance with the motion information, a positioning process in which the plurality of pieces of captured image data are positionally adjusted (S21), prepares, by use of the plurality of pieces of captured image data which have been subjected to the positioning process, high resolution image data (S22), and outputs the high resolution image data prepared or an image displayed based on the high resolution image data (S29).