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A.Z. Tirkel, R.M. van Schyndel, C.F. Osborne. Digital Watermark (A), ICIP'94 - IEEE International Conference on Image Processing. Vol. 2 1994. pp. 86-90. [HTML]   ABSTRACT This paper discusses the feasibility of coding an "undetectable" digital water mark on a standard 512*512 intensity image with an 8 bit gray scale. The watermark is capable of carrying such information as authentication or authorisation codes, or a legend essential for image interpretation. This capability is envisaged to find application in image tagging, copyright enforcement, counterfeit protection, and controlled access. Two methods of implementation are discussed. The first is based on bit plane manipulation of the LSB, which offers easy and rapid decoding. The second method utilises linear addition of the water mark to the image data, and is more difficult to decode, offering inherent security. This linearity property also allows some image processing, such as averaging, to take place on the image, without corrupting the water mark beyond recovery. Either method is potentially compatible with JPEG and MPEG processing. | Neil's Homepage | Steganography | JJTC Main Page | Send comments to nfj(at)jjtc(dot)com. Copyright, ©1995-2008, Neil F. Johnson. All Rights Reserved. Steganography and Digital Watermarking Cryptography and Encryption The Codebreakers Research in Cryptography Related Topics and Issues Documents, News and Publications Security Newsgroups Security Tools and Archives Organizations in Security and Privacy Other Security Links -------------------------------------------- Main Security Page Neil's Home Page JJTC Home Page Center for Secure Information Systems Site Map -------------------------------------------- Cryptanalysis Cryptography and Encryption Documents, News and Publications Government Agencies Interest and User Groups Journals Network Security Newsletters Organizations in Security and Privacy Related Security Topics and Issues Research in Cryptography Security Page Security Applications Security Newsgroups Security Software Security Tools and Archives Special Events and Announcements Steganography and Digital Watermarking Steganography Documents Usenet Security Newsgroups Vendors Other Security Links