A study on the insertion & extraction for the simple DXF File Watermark

간단한 DXF파일에 워터마크삽입과 추출에 관한 연구

  • Kang, Hwan-Il (School of Electrical, Information & Control Engineering Myong Ji University) ;
  • Kim, Kab-Il (School of Electrical, Information & Control Engineering Myong Ji University) ;
  • Jeong, Cheol-Gyun ;
  • Lee, Sung-Ui (School of Electrical, Information & Control Engineering Myong Ji University) ;
  • Park, Kyung-Yong (School of Electrical, Information & Control Engineering Myong Ji University) ;
  • Park, Kui-Tae (School of Electrical, Information & Control Engineering Myong Ji University)
  • 강환일 (명지대학교 전기정보제어공학부) ;
  • 김갑일 (명지대학교 전기정보제어공학부) ;
  • 정철균 (명지대학교 전기정보제어공학부) ;
  • 이성의 (명지대학교 전기정보제어공학부) ;
  • 박경용 (명지대학교 전기정보제어공학부) ;
  • 박귀태 (명지대학교 전기정보제어공학부)
  • Published : 2001.07.18

Abstract

This paper presents an algorithm of the watermark insertion and extraction on the vector image. Most parts of the vector image consist of the array of the coordinate values. The vector watermarking method by Sakamoto et al [1] uses the mask within which all the coordinate values of all the vertices are changed depending on the value of the watermark. The proposed algorithm is the change of the vector image file instead of the change of the coordinate values on the vector image. We use the Drawing Exchange Format (DXF) files since the DXF file is one of the general files in the field of the vector image.

Keywords