The invention performs automatic evaluation based on sensitivity of an image that, in the related art, is performed by using the sensibility and the manual work of a person. The invention provides an image-for-evaluation input device to input an image for evaluation, an induction-field-in-vision calculation device to calculate the induction field in vision of the image input to the image-for-evaluation input device, and an image-evaluation-based-on-sensitivity device to perform evaluation based on sensitivity of the image based on a potential value obtained by the induction-field-in-vision calculation device. The image-evaluation-based-on-sensitivity device includes an induction-field-energy calculation device, calculates an induction-field energy based on the result obtained by the induction-field-in-vision calculation device, and performs the evaluation based on sensitivity of the image according to the magnitude of the energy.