1. A display device comprising: a division circuit dividing an input image from a plurality of pixels into a plurality of regions based on feature quantity of each of the plurality of pixels; a luminance reduction rate calculation circuit calculating the reduction rate of luminance of each region based on the surface area of each of the plurality of regions; an image generation circuit generating output images by correcting the luminance of each of the plurality of pixels based on the reduction rate calculated by the luminance reduction rate calculation circuit; and a correction circuit correcting labels assigned to each of the plurality of pixels by the division circuit, wherein the division circuit is configured to divide the input image by assigning different labels to each region of the plurality of pixels.