An electronic device includes an operation processor for encoding image data that is generated by capturing an object, and a communication circuit for communicating with an external device. The operation processor divides an image represented by the image data into a first region and a second region based on an information signal that is received from the external device, encode first image data corresponding to the first region by a first encoding manner, and encode second image data corresponding to the second region by a second encoding manner. An outline of the first region varies depending on a shape of a display device of the external device.