Earticle

초록

영어

We propose a watermarking scheme for the authentication of binary images. We transform the image using the binary wavelet transform and partition the resulting coefficients into tree-structured blocks. The size of each block is decided by the number of flippable coefficients in the block. The flippable coefficients are found in the frequency domain by investigating high frequency coefficients. A random bit sequence generated by the block identifying key is embedded in the flippable coefficients in each block. Block-wise localization of tampered regions is accomplished with imperceptible visual degradations. Counter-measures against the vector quantization attack to which most existing watermarking schemes are vulnerable may also be implemented in our scheme

목차

Abstract
 1. Introduction
 2. Proposed Algorithm
  2.1. Watermark Embedding and Tampered Region Localizing
  2.2. Improvement for Countermeasure against Vector Quantization Attack
 3. Experimental Results
 References

키워드

저자

• Oh-Jin Kwon [ Department of Electronics Engineering, Sejong University, Seoul 143-747, Korea ]
• Won-Gyu Kim [ Department of Electronics Engineering, Sejong University, Seoul 143-747, Korea ]
• Youngseop Kim [ Department of Electrical and Electronics Engineering, Dankook University, Yongin ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Multimedia and Ubiquitous Engineering

• 간기

  월간

• pISSN

  1975-0080

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605