대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1998년도 추계학술대회 논문집 학회본부 B
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- Pages.606-608
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- 1998
디지털 영상물의 저작권 보호를 위한 워터마크 기술에 관한 연구
A Study on Watermark Technique for Copyright Protection of Digital Images
- Hong, Min-Suk (Dept. of Electrical Eng., Yonsei Univ.) ;
- Park, Kang-Seo (Dept. of Electrical Eng., Yonsei Univ.) ;
- Chung, Tae-Yun (Samsung Electronics Co.) ;
- Shin, Joon-In (Dept. of Electrical Eng., Yonsei Univ.) ;
- Park, Sang-Hui (Dept. of Electrical Eng., Yonsei Univ.)
- 발행 : 1998.11.28
초록
Digital watermarking is the technique which embeds the invisible signal into multimedia data such as audio, video, images, for copyright protection, including owner identification and copy control information. In this paper, a new watermark detection algorithm by local masking cross covariance between watermarked signal and pseudo noise signal is proposed. The proposed algorithm enhances the detection probability for embedding information. Since reducing detection errors for the weak embedding signals, the algorithm improves the image quality and robusts against illegal attack to delete the embedding information and data compression applications such as JPEG and MPEGs.
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