Provided are a cloud server-based image processing method performed by an image processing terminal, and the image processing terminal and system therefor. The method includes 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. When it is determined 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.