An image-processing device includes: a color conversion unit that converts an input image data expressed by a combination of light's primary colors into an intermediate image data in which a color of each pixel is expressed by a combination of basic printing colors; a density correction unit that corrects the intermediate image data so that density of a pixel of the intermediate image data corresponds to that of a corresponding pixel of the input image data; an identifying unit that identifies an area in which the density is close to a prescribed value by analyzing the intermediate image data; and an output unit that corrects a density distribution in a pixel of the intermediate image data contained in the area in accordance with a prescribed distribution function and outputs the result.