Digital Watermarking Algorithm of Still Image Using Human Visual System Characteristics

인간시각체계 특성을 이용한 정지영상 디지털 워터마킹 알고리즘

  • 지남현 (충북대학교 컴퓨터공학과) ;
  • 전병민 (충북대학교 전기전자컴퓨터공학부)
  • Published : 2003.06.01


This paper proposes method to insert soong Watermark considering dull HVS properties to big change of Edge and Texture area. While conversion of existent Fourier form can acquire information for whole frequency ingredient of image, but Wavelet transform can look for Edge and Texture area locally. Therefore, use Wavelet transform to use HVS properites, and compare with Xia's Watermarking techniques to use Wavelet transform simply arid experimented these proposal algorithm. Experimented about fidelity and robusthness by attack method that is used in existing paper, and as a result, confirmed that proposal algorithm that use HVS properties is more superior than Xia's techniques.