1. An image-taking apparatus comprising: an image-taking section which carries out image-taking by using an image pickup element; a first control section which, in a calibration mode, successively shifts a value of a parameter relating to white balance and makes the image-taking section take a plurality of images with parameters different from each other; a second control section which, in the calibration mode, stores a correction amount relating to the parameter corresponding to an image selected by a user among the plurality of images in a memory; and a third control section which, in a normal image-taking mode, corrects white balance of a image taken by said image-taking section on the basis of the correction amount stored in the memory.