1. An image-sensing apparatus comprising: an image-sensing portion which acquires an original image by shooting a subject; a specific region detector which detects from the original image a region having a specific image characteristic based on image data of the original image, wherein the region detected by the specific region detector is set as a specific region; an alteration processor which applies reversible alteration to an image inside the specific region in the original image to produce from the original image an altered image; and a recording controller which records in a recording portion an image file in which the altered image is stored in association with restoration-oriented information identifying contents of restoration that needs to be performed to restore the original image from the altered image.