1. A method for displaying an image according to a call in a mobile terminal, the method comprising: registering a counterparty's image in a counterparty's phone number information; recognizing the registered counterparty's image, comparing the recognized image with a plurality of images, and extracting at least one image from the plurality of images, which is different from the registered counterparty's image, containing the counterparty's image based on the recognized counterparty's image and the comparison, when a call is generated through a counterparty's phone number; and displaying the registered image and the extracted image.