RADIOGRAPHIC IMAGE GENERATING DEVICE

The present invention provides technology that makes it possible, in a device that uses a grating to carry out high sensitivity radiographic image shooting using the wave nature of x-rays or the like, to shoot a sample that moves relative to a device. A pixel value computation section 51 determines, using a plurality of intensity distribution images of a sample 10 that moves in a direction that traverses the path of radiation, whether or on not a point (p, q) on the sample belongs in a region (Ak) on each intensity distribution image. Further, the pixel value computation section 51 obtains a sum pixel value (Jk) for each region (Ak) by summing pixel values on the each intensity distribution image for point (p, q) that belongs to each region (Ak). An image computation section 52 creates a required radiographic image using the sum pixel values (Jk) of the region (Ak) .