An image processing apparatus is an image processing apparatus that generates image data used to print images on a sheet appliable to the skin. The image processing apparatus includes an image determiner that determines a makeup article image whose target position on the face is determined in accordance with facial feature points and an assist mark image whose target position on the face is determined in accordance with the facial feature points and a printing controller that generates the image data including contents indicating that the determined makeup article image and the determined assist mark image are to be printed on the sheet, the determined assist mark image printed at a position corresponding to a printing position of the determined makeup article image.