PROBLEM TO BE SOLVED: To realize a method and device for processing a picture for operating picture processing for client display with satisfactory responsiveness without increasing any communication load. SOLUTION: A part of picture data of an original picture is fetched from a server to a client (312, 212), and the preliminary trial of picture processing is operated based on the fetched picture data by the client (314), and the established picture processing condition is transmitted from a client to a server (316), and an original picture is processed based on the transmitted picture processing condition by the server (214), and the processed picture is fetched and displayed by the client (318).
