Title :
Research on Anti-printing & Scanning Watermark Algorithm Based on Spread Spectrum Coding
Author :
Jiuhua, Zhang ; Guangpu, He
Author_Institution :
Dept. of Phys. & Electron. Inf. Sci., Leshan Teachers´´ Coll., Leshan, China
Abstract :
One Anti-scanning & printing digital watermark algorithm is studied which can be used in electronic seal Anti-counterfeiting system. Spread spectrum coding strategy is used for embedding the watermark of bigger capacity. The experimental results show that the algorithm can withstand pixel distortion and geometry distortion at the same time which can be used in digital watermark of the electronic seal anti-counterfeiting system and paper certificate and raised the security of watermark detection system in very great degree.
Keywords :
image coding; watermarking; anticounterfeiting system; antiprinting algorithm; digital watermark; electronic seal; geometry distortion; paper certificate; pixel distortion; scanning watermark algorithm; spread spectrum coding; watermark detection system; Computer science; Discrete cosine transforms; Discrete wavelet transforms; Frequency; Helium; Information technology; Printing; Seals; Spread spectrum communication; Watermarking; Spread Spectrum Coding; digital watermark algorithm; electronic seal anti-counterfeiting system;
Conference_Titel :
Information Technology and Computer Science, 2009. ITCS 2009. International Conference on
Conference_Location :
Kiev
Print_ISBN :
978-0-7695-3688-0
DOI :
10.1109/ITCS.2009.267
