Parallax image display device, parallax image display method, and parallax image display program

The present invention provides a parallax image display device, a parallax image display method, and a parallax image display program, which enable the stereoscopic effect of stereoscopic images to be confirmed using a 2D monitor. Specifically, a plurality of images captured from at least two different viewpoints is acquired; a parallax map is generated, said parallax map associating parallax values represented by the differences in the positions of corresponding regions between a first image and an image that is different from the first image, which are included in the plurality of acquired images, with the positions of the regions of the first image; the resolutions of the corresponding regions are determined according to the parallax value for each region; a parallax resolution image, obtained by changing the resolution of each region of the first image to the determined resolution, is created; and the parallax resolution image and the first image are synthesized.