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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2009.6
- 수록면
- 267 - 270 (4page)
이용수
초록· 키워드
오류제보하기
In this paper, we proposed the digital watermarking algorithm in the wavelet coefficient. The main point of our algorithm is that is used difference matrix. In the preprocessing, original image is decomposed with 1-level sub-bands by wavelet transform. Then, all sub-bands which are excepted the low-frequency bands are set to normalize and make a reference image after transforming inverse wavelet transform. The Watermark is embedded by calculating statistic variance considering the local characteristic with respect to the high-frequence component. Experimental results showed that the proposed approach is robust and better invisible in such attacks as JPEG compression, noise addition, filtering.
목차
Abstract
Ⅰ. Introduction
Ⅱ. Discrete Wavelet Transform
Ⅲ. The proposed scheme
Ⅳ. Experimental Results
Ⅴ. Conclusions
References
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UCI(KEPA) : I410-ECN-0101-2009-566-018476591