Device and method for generation of image for 3d vision, and programme

[Problem] To enable an image for 3D vision to be viewed at an acceptable display quality by both a viewer who is in a viewing situation in which 3D vision of parallax images for the left and right eyes is possible and a viewer who is in a viewing situation in which 3D vision is not possible. [Solution] When a viewer has viewed both parallax images, displayed in a fused manner, in a viewing situation in which 3D vision is possible, at least one among the parallax images for the left and right eyes is generated such that the photographic subject in the parallax images can be viewed as a 3D image, and when a viewer has viewed both parallax images, displayed in a fused manner, in a viewing situation in which 3D vision is not possible, at least one among the parallax images for the left and right eyes is generated at a low resolution or a low definition at which the photographic subject can be recognised as a planar image. For example, when a radiographic image signal is read from a radiographic image detector (15) the signal is read at a low resolution. Alternatively, a resolution alteration processing unit or a non-sharpening processing unit is provided in a computer (8).