Title :
An Improved Digital Watermarking Algorithm Dedicated to Electronic Seal
Author :
Fanfeng, Zeng ; Haoming, Chen
Author_Institution :
Dep. Comput. Sci. & Technol., North China Univ. of Technol., Beijing, China
Abstract :
In view of the characteristics of the electronic seal and the special security requirement, we improved watermarking algorithms based on the discrete cosine transform, which can fight back a variety of attacks. The improved algorithm was used in effectiveness and integrity of electronic seal. Finally, the algorithm analysis was tested in a variety of common attacks. The results showed that the extracted watermark information can keep a higher accuracy rate.
Keywords :
discrete cosine transforms; image coding; watermarking; digital watermarking; discrete cosine transform; electronic seal; security requirement; Algorithm design and analysis; Computer science; Discrete cosine transforms; Image coding; Information security; Information technology; Pixel; Seals; Transform coding; Watermarking;
Conference_Titel :
Intelligent Information Technology Application, 2009. IITA 2009. Third International Symposium on
Conference_Location :
Nanchang
Print_ISBN :
978-0-7695-3859-4
DOI :
10.1109/IITA.2009.116
