An imaging apparatus has an intermediate image generating section to generate a second structure component and a second texture component by magnifying each of a first structure component and a first texture component separated from an original image by an intermediate magnification ratio. The second structure component and the second texture component are synthesized to generate an intermediately magnified image. A final image generating section generates a finally magnified image by synthesizing a finally magnified structure component generated by magnifying a third structure component separated from the intermediately magnified image by a final magnification ratio, and a finally magnified texture component generated by magnifying the first texture component by the final magnification ratio.