1. Craver, S., Memon, N., Yeo, B., Yeung, N.M.: Resolving Rightful Ownerships with Invisible Watermarking Techniques: Limitations, Attacks, and Implications. IEEE Journal on Selected Areas in Communications 16(4), 573–586 (1998)
2. Diagimarc corporation PictureMarcTM, MarcSpiderTM,
http://www.digimarc.com
3. Duric, Z., Johnson, N.F., Jajodia, S.: Recovering Watermarks from Images. IEEE Transactions on Image Processing (1999) (submitted to)
4. Jahne, B.: Digital Image Processing, 4th edn. Springer, Heidelberg (1997)
5. Johnson, N.F., Duric, Z., Jajodia, S.: A Role for Digital Watermarking in Electronic Commerce. ACM Computing Surveys (1999)