A video image editing device or the like, capable of editing a wraparound video image generated by using a plurality of video images captured by multi-viewpoint cameras to be comfortably viewable by viewers, is provided. Based on information about the positions and the sizes of X subjects, a polynomial expression regarding the position of the subject and a polynomial expression regarding the size of the subject are generated. Correction or interpolation of the positions of the H subjects is performed by a polynomial approximation curve using the polynomial expression regarding the position of the subject, correction or interpolation of the sizes of the N subjects is performed by a polynomial approximation curve using the polynomial expression regarding the size of the subject, and the sizes of the N subjects are expanded or contracted with an expansion/contraction parameter p. An intermediate image is generated from two images of the same size corresponding to the photographing devices adjacent to each other, and a wraparound video image is generated, with a parameter indicating the length of the wraparound video image being represented by Tp.