Earticle

초록

영어

Fragile watermarking has the characteristics where the inserted watermark should be easily breakable for a trivial tampering of the image. So, fragile watermarking technique is proposed for the purpose of authentication or tamper detection. In this paper, we propose an efficient image tamper detection method using block-wise technique which is able to detect the tamper locations. In the proposed method, a digital signature is generated from the hash code of the blocks of the final level where the watermark is inserted and the blocks of the upper level where those blocks are included in the image division process and this signature is used as the watermark, which is randomly inserted into selected image blocks. As the result of experiment, the proposed method was confirmed to be able to detect the tampered parts of the image without testing the entire block of the watermarked image.

목차

Abstract
 1. Introduction
 2. Watermark Generation
  2.1. Image Division for Watermark Generation and Insertion
  2.2. Watermark Generation
 3. Watermark Insertion and Extraction
  3.1. Selection of Block for Watermark Insertion
  3.2. Watermark Extraction
 4. Experiment and Result
 5. Conclusion
 Acknowledgments
 References

키워드

저자

• Chan-Il Woo [ Department of Information and Communication Engineering, Seoil University ]
• Seung-Dae Lee [ Department of Electronic Engineering, Namseoul University, Chungnam-do, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Smart Home

• 간기

  격월간

• pISSN

  1975-4094

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605