1. An image-processing device comprising: an image information generating part for dividing captured image data consisting of a signal having a plurality of data values of a plurality of pixels into a plurality of small areas, said small areas each consisting of a plurality of the pixels, and for generating, for each of said small areas, image information indicating a characteristic of the captured image data; a luminance value determining part for determining a luminance value indicating luminosity for each of the plurality of small areas of the captured image data; an evaluation value determining part for calculating an evaluation value for each of the plurality of pixels, the evaluation value being calculated by selecting two or more small areas, including an area having the pixel for which the evaluation value is calculated and an other area having shorter distances to a pixel for which the evaluation value is being calculated from each of the plurality of pixels, and calculating the evaluation value for each pixel by inputting the respective luminance values of the selected small areas and a distance value from each pixel to each small area selected into a formula; and an image-processing part for performing correction on each of the pixels of the captured image data according to the evaluation value determined by said evaluation value determining part.