X-ray imaging apparatus

An X-ray imaging apparatus comprising:

• an X-ray source;
• a detector configured to detect X-rays radiated from the X-ray source at a plurality of detection positions translated by a movement amount smaller than a pixel size of the detector from each other;
• and
• an image processor configured to generate a plurality of acquired images based on the X-rays detected at the plurality of detection positions, respectively, the image processor being configured to generate a high-resolved image having higher resolution than the plurality of acquired images by performing a super-resolution process to increase resolution based on the plurality of acquired images;
• wherein
• the image processor is configured to apply the super-resolution process to a first region in each of the acquired images, the first region including a subject, and to increase a number of pixels according to an increase in resolution in the first region by application of the super-resolution process thereto by a simpler process than the super-resolution process with respect to a second region other than the first region in each of the acquired images.