Various embodiments relate to an electronic device and, according to one embodiment, the electronic device comprises a display and a processor, wherein the processor can be configured to detect at least one outline corresponding to at least one graphic object included in a first image to be displayed through the display, generate a second image in which the at least one outline has been adjusted to a first designated color and areas excluding the at least one outline in a first image have been adjusted to a second designated color, and display the second image by using the display. Other additional embodiments are possible.