1. A method of processing an image in a display apparatus, the method comprising: storing, in a storage, a plurality of different depth information that respectively correspond to a first event and a second event; receiving an image from an external source; processing the received image into a first form by applying first depth information of the plurality of different depth information corresponding to the first event to at least one pixel among pixels constituting the received image based on an occurrence of the first event; processing the received image into a second form different than the first form by applying second depth information of the plurality of different depth information corresponding to the second event to the at least one pixel among the pixels constituting the received image based on an occurrence of the second event; and sequentially displaying the processed image in the first form and the processed image in the second form.