An image processing device includes a blender and a display quality enhancer. The blender is configured to receive a plurality of layer data, generate first image data by blending the plurality of layer data, the first image data including a plurality of pixel values corresponding to a screen in a display device, and generate pixel map data including a plurality of pixel identifications (IDs) based on the plurality of layer data, the plurality of layer data representing a plurality of images to be displayed on the screen, the plurality of pixel IDs indicating display quality enhancement algorithms to be applied to the plurality of pixel values. The display quality enhancer is configured to generate second image data including a plurality of display quality enhancement pixel values by applying the display quality enhancement algorithms to the plurality of pixel values based on the first image data and the pixel map data.