A robust watermarking technique using wavelet transform/hybrid wavelet transform and SVD is proposed in the paper. Singular values of watermark are embedded in mid-frequency transform coefficients of host located in a single row. Selection of single row makes only 256 transform coefficients available where watermark singular values can be embedded. By using the compression property of Singular Value Decomposition, only few singular values are embedded in the host row. Transform coefficients of host are sorted in descending order and their index positions are used to embed singular values. Scaling factor is also adaptively selected based on highest transform coefficient in the selected host row and highest singular value of watermark. Selection of single row makes it difficult to predict the location where watermark is embedded thus making it more robust over selecting multiple rows for embedding. Adaptive scaling factor adds to the robustness by adjusting the strength of watermark according to the highest singular value of watermark and host row selected for embedding. This technique proves better in terms of robustness against various attacks than embedding singular values of watermark in multiple rows of host proposed in our previous work.
목차
Abstract 1. Introduction 2. Related Work 3. Proposed Method 4. Performance Evaluation against Various Attacks for Robustness 5. Comparison of Proposed Technique with Multirow Technique 6. Conclusions References
키워드
WatermarkingDCT waveletDKT-DCT waveletSingular Value Decomposition
저자
Dr. H. B. Kekre [ Senior Professor, Computer Engg. Department SVKM’s NMIMS (Deemed to be University), Vileparle, Mumbai, India ]
Dr. Tanuja Sarode [ Associate Professo, Computer Department, Thadomal Shahani Engg. College, Bandra, Mumbai 50, India ]
Shachi Natu [ Assistant Professor, Department of I. T., Thadomal Shahani Engg. College Bandra, Mumbai 50, India ]
보안공학연구지원센터(IJSIP) [Science & Engineering Research Support Center, Republic of Korea(IJSIP)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Signal Processing, Image Processing and Pattern Recognition
간기
격월간
pISSN
2005-4254
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Signal Processing, Image Processing and Pattern Recognition Vol.7 No.3