An image processing method includes: obtaining, based on a plurality of pieces of first luminance information that correspond to fourth sub-pixels contained in a pixel region to which a focused pixel belongs and based on a relative positional relationship between a first sub-pixel and the fourth sub-pixel in a display pixel, second luminance information that corresponds to the fourth sub-pixel of the focused pixel, in which the focused pixel is a display pixel in a display section that includes a plurality of display pixels each having the first sub-pixel, a second sub-pixel, and a third sub-pixel that are configured to emit light of basic colors, and the fourth sub-pixel that is configured to emit light of a color other than the basic colors; and replacing the first luminance information that corresponds to the fourth sub-pixel of the focused pixel with the second luminance information.