IMAGE PROCESSING METHOD, IMAGE PROCESSING UNIT, IMAGE PROCESSING SYSTEM AND STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide an image processing unit that can embed visible specific information (electronic watermark information or the like) to an image in a way that it is difficult to remove the added information. SOLUTION: A 1st embed means 150 imbeds 1st specific information (information open to public) to a digital image received from an input means 140. A 2nd embed means 150 embed 2nd specific information (information open to a specific user or device only) to the digital image to which the 1st specific information has been embedded.