1. An image display method comprising: receiving image data including a black region and a white region; determining a boundary between the black and white regions; determining a pixel to be corrected which is adjacent to the boundary; determining a direction of the boundary and an arrangement of the black and white regions with respect to the boundary; converting pixel data corresponding to the pixel into corrected pixel data based at least in part on the boundary direction and the arrangement; and displaying images on a display device based at least in part on corrected image data including the corrected pixel data.