121 in response to the request from the server apparatus 100 the client b notifies the server apparatus 100 and the client a as to whether the user b accepts that the facial image of the user b is set as the sharing condition the client a notifies the user a of the result of the setting of the sharing condition for sharing the facial image of the user b step s 104 when a user other than the user b is identified by mistake in step s 113 the user identified by mistake receives a notification that the user a is going to set the user as the sharing condition however when the user who owns the image data sets the sharing range by setting permission and prohibition of the sharing erroneous distribution can be prevented when the user b accepts the setting of the sharing condition for sharing the facial image of the user b the server apparatus 100 writes the sharing condition set by the client a shared person information and the acceptance information permission given by the client b to the sharing condition database 105 step s 115 on the contrary when the user b rejects the sharing the shared.