An image processing apparatus which performs image processing of a plurality of frame images generated by an imaging device having a plurality of image sensors (11, 12) each continuously generating a first frame image and a second frame image in sequence, comprising: a placement information acquisition section which acquires, for each image sensor (11, 12), placement information indicating placement conditions of the image sensors (11, 12) with respect to the imaging device; a movement information acquisition section which acquires movement information of the imaging device between the first frame image and the second frame image; and an output area acquisition section which acquires, for each image sensor (11, 12), position information of a second output area (A12, A22) within the second frame image, the second output area corresponding to a first output area (A11, A21) within the first frame image, wherein the output area acquisition section acquires: as a reference base, the second output area of a base image sensor among the plurality of image sensors (11, 12) based on the position information of the first output area (A 11) determined by the placement information and based on the movement information; and the second output area of an image sensor being different from the base image sensor, among the plurality of image sensors (11, 12) based on the placement information of the base image sensor, the placement information of another image sensor, and the movement information; characterized by the image processing apparatus further comprising a determination section which determines for all the image sensors (11, 12) whether or not the position information of the second output area (A12, A22) is positioned within the second frame image, wherein when the position information of the second output area (A12, A22) is not positioned within the second frame image, the output area acquisition section sets moving amount obtained by a difference between the position information of the first output area (A11, A21) and the position information of the second output area (A12, A22) to be smaller until the position information of the second output area (A12, A22) is positioned within the second frame image in all the image sensors (11, 12). a placement information acquisition section which acquires, for each image sensor (11, 12), placement information indicating placement conditions of the image sensors (11, 12) with respect to the imaging device; a movement information acquisition section which acquires movement information of the imaging device between the first frame image and the second frame image; and an output area acquisition section which acquires, for each image sensor (11, 12), position information of a second output area (A12, A22) within the second frame image, the second output area corresponding to a first output area (A11, A21) within the first frame image, wherein the output area acquisition section acquires: as a reference base, the second output area of a base image sensor among the plurality of image sensors (11, 12) based on the position information of the first output area (A 11) determined by the placement information and based on the movement information; and the second output area of an image sensor being different from the base image sensor, among the plurality of image sensors (11, 12) based on the placement information of the base image sensor, the placement information of another image sensor, and the movement information; characterized by the image processing apparatus further comprising a determination section which determines for all the image sensors (11, 12) whether or not the position information of the second output area (A12, A22) is positioned within the second frame image, wherein when the position information of the second output area (A12, A22) is not positioned within the second frame image, the output area acquisition section sets moving amount obtained by a difference between the position information of the first output area (A11, A21) and the position information of the second output area (A12, A22) to be smaller until the position information of the second output area (A12, A22) is positioned within the second frame image in all the image sensors (11, 12). as a reference base, the second output area of a base image sensor among the plurality of image sensors (11, 12) based on the position information of the first output area (A 11) determined by the placement information and based on the movement information; and the second output area of an image sensor being different from the base image sensor, among the plurality of image sensors (11, 12) based on the placement information of the base image sensor, the placement information of another image sensor, and the movement information; characterized by the image processing apparatus further comprising a determination section which determines for all the image sensors (11, 12) whether or not the position information of the second output area (A12, A22) is positioned within the second frame image, wherein when the position information of the second output area (A12, A22) is not positioned within the second frame image, the output area acquisition section sets moving amount obtained by a difference between the position information of the first output area (A11, A21) and the position information of the second output area (A12, A22) to be smaller until the position information of the second output area (A12, A22) is positioned within the second frame image in all the image sensors (11, 12).