An electronic zoom and distortion correction processing unit (104) performs electronic zooming and distortion correction of a distorted image by re-mapping the pixels of the distorted image. In accordance with a specified electronic zoom factor (S1), a re-mapping control unit (110) controls re-mapping by the electronic zoom and distortion correction processing unit (104) such that the correction factor (S4) of the distortion correction processing is changed in addition to the electronic zoom factor of the electronic zoom processing. By this means, the correction factor (S4) is changed in accordance with the specified electronic zoom factor (S1), and distorted images can be appropriately corrected while preventing denaturing of the images.