Various embodiment provide a method and device comprising: a display; a memory; and a control unit operatively connected to the display and the memory, wherein the control unit is configured to control the display to display an original image on the display, detect a roll generation event, identify an object from the original image according to the roll generation event, convert the original image into a roll image using the identified object, and store the same in the memory. In addition, other embodiments are also possible.