1. An image processing apparatus comprising: an input section, configured to input a plurality of image capturing data time-divisionally exposed by a capturing unit; an adopter configured to adopt certain image capturing data to be synthesis images from the plurality of input image capturing data according to a divide pattern that does not have periodicity, wherein the adopter adopts image capturing data to be either synthesis images or motion detection images from the plurality of image capturing data, and adopts image capturing data exposed immediately after the time-division exposure as a motion detection image; a synthesizer configured to generate synthesized image capturing data by synthesizing the synthesis images; a corrector configured to correct a vibration of the synthesized image capturing data based on the divide pattern and a motion amount of the capturing unit; and a detector configured to detect the motion amount at the time of time divisional exposure from the image capturing data of the motion detection images.