Digital watermarking by using orthogonal line screens

Yu Lan Chiu, Hsi Chun Wang, Yi Ting Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

With the rapid growth of information technology, more and more sophisticated machines for image duplication have been created to enable image reproduction in an efficient and convenient way. However, it raises a serious threat on intellectual property rights. The purpose of this study is to compose watermarks with orthogonal lines in an effort to protect copyright and to ensure anti-counterfeiting protection. To design the orthogonal line screen watermarks, vertical and horizontal threshold matrix are processed by digital halftoning and the effect of encryption and decryption on the printout of the anticounterfeiting watermarks was evaluated. The results showed that conducting orthogonal lines to encrypt messages in documents can be successfully carried out. This technique is also applied to encrypt answers of the problem sets in text books.

Original languageEnglish
Title of host publicationApplied System Innovation - Proceedings of the International Conference on Applied System Innovation, ICASI 2015
EditorsArtde Donald Kin-Tak Lam, Stephen D. Prior, Teen-Hang Meen
PublisherCRC Press/Balkema
Pages217-220
Number of pages4
ISBN (Print)9781138028937
Publication statusPublished - 2016 Jan 1
EventInternational Conference on Applied System Innovation, ICASI 2015 - Osaka, Japan
Duration: 2015 May 222015 May 27

Publication series

NameApplied System Innovation - Proceedings of the International Conference on Applied System Innovation, ICASI 2015

Other

OtherInternational Conference on Applied System Innovation, ICASI 2015
CountryJapan
CityOsaka
Period15/5/2215/5/27

ASJC Scopus subject areas

  • Business, Management and Accounting (miscellaneous)
  • Computer Networks and Communications
  • Computer Science Applications
  • Control and Optimization
  • Control and Systems Engineering
  • Social Sciences (miscellaneous)
  • Electrical and Electronic Engineering

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  • Cite this

    Chiu, Y. L., Wang, H. C., & Tsai, Y. T. (2016). Digital watermarking by using orthogonal line screens. In A. D. K-T. Lam, S. D. Prior, & T-H. Meen (Eds.), Applied System Innovation - Proceedings of the International Conference on Applied System Innovation, ICASI 2015 (pp. 217-220). (Applied System Innovation - Proceedings of the International Conference on Applied System Innovation, ICASI 2015). CRC Press/Balkema.