1. A server-based image processing method performed by an image processing terminal, the method comprising: determining whether an image processing function is to be performed by the image processing terminal or a server; and controlling at least one of the image processing terminal and the server to perform the image processing function, based on a result of the determining, wherein, in response to determining that the image processing function is to be performed by the server, data and a request signal related to the image processing function are transmitted to the server.