METHOD FOR OUTPUTTING NON-PUBLIC IMAGE BY USING OPEN MONITOR

摘要

PURPOSE: A method for outputting a non-public image by using an open monitor is provided to display more than two different image frames during one monitor frame cycle as satisfying a perception ability of a user, thereby improving a security performance against a peeper. CONSTITUTION: A system selects a disposing rule of a non-public image and a masking image in order to close a specific area only of a monitor. The system generates sequences of the non-public image and the masking image according to the disposing rule. The system generates a signal for opening/shutting a shutter device by corresponding to the sequences so as to close the specific area only of the monitor. The system outputs the non-public image and the masking image to the monitor according to image sequence patterns. The system opens/shuts the shutter device according to a shutter open/shut signal.