1. An image processing method comprising: converting a color reproduction target of an input image with an input color gamut according to a color gamut of a target display device, wherein the input color gamut is different from the color gamut of the target display device; generating a file of the input image according to the color gamut of the target display device; and storing the file of the input image, wherein converting comprises, detecting a skin color region having color components in a skin color range from the input image; and excluding the skin color region from objects to be processed for color reproduction target conversion.