상세정보
학술대회
Lossless Data Hiding Based on Histogram Modification of Difference Images
- 발행일
- 200411
- 출처
- Pacific-Rim Conference on Multimedia (PCM) 2004 (LNCS 3333), v.3333, pp.340-347
- 협약과제
- 04MC1200, 지능형 웹스파이더를 이용한 불법 복제 콘텐츠 추적기술, 서영호
- 초록
- In this paper, we propose a new lossless data hiding method where distortion due to data embedding can be completely removed from the watermarked image after the watermark has been extracted. In the proposed method, we utilize characteristics of the difference image and modify pixel values slightly to embed the data. We show that the lower bound of the PSNR (peak-signal-to-noise- ratio) values for typical images are about 51.14 dB. Moreover, the proposed method is quite simple and fast. Experimental results demonstrate that the proposed scheme can embed a large amount of data while keeping high visual quality of test images. © Springer-Verlag 2004.
- KSP 제안 키워드
- Difference image, Lossless data hiding, Lower bound, Pixel Value, Signal-to-Noise, Visual Quality, data embedding, histogram modification(HM), watermarked image