An image processing apparatus that can reduce a time for the user to perform necessary determinations after completion of an examination, as compared with a conventional technology, is provided. In a capsule endoscopic system including a capsule endoscope introduced into a subject and wirelessly transmitting a series of image data generated by capturing images inside the subject, and a receiver receiving and accumulating the series of the image data wirelessly transmitted from the capsule endoscope, the image processing apparatus 5 that processes the image data acquired from the receiving device includes an image data acquisition unit 52 that sequentially acquires the image data from the receiving device in order from a latest imaging time, an image processing unit 54 that performs predetermined image processing on the image data acquired by the image data acquisition unit 52, in order in which the image data are acquired, and a display controller 55 that displays a screen containing a result obtained through the predetermined image processing.