An electronic device includes a processor that is configured to, based on receiving a first partial image from among a plurality of partial images obtained by an input device by dividing an image, obtain first image quality information based on the first partial image and transmit the first image quality information to an external electronic device, based on receiving, from the external electronic device, second image quality information obtained from a second partial image among the plurality of the partial images, obtain image quality processing information corresponding to the image based on the first image quality information and the second image quality information, and process the first partial image based on the image quality processing information, and transmit, via the communication interface, the first partial image processed to one of a plurality of display modules included in an external display device.