상세정보
학술지
Reversible Data Hiding Employing Histogram Shifting Using a Rotated Even-Odd Difference Image
- 저자
- 이상광, 유향미, 서재원
- 발행일
- 201312
- 출처
- New Review of Hypermedia and Multimedia, v.19 no.3-4, pp.234-247
- ISSN
- 1361-4568
- 출판사
- Taylor & Francis
- 초록
- Reversible data hiding, a technique that can recover an undistorted original image from a watermarked one, has drawn considerable attention in recent years. However, most of the current reversible data-hiding algorithms based on histogram modification have underflow and overflow problems with regard to the watermarked image. In order to overcome these problems in the proposed algorithm, we implement a location map that indicates the positions of the underflow and overflow problems and include the compressed location map in the hidden data. In addition, the proposed algorithm allows multi-level data hiding in order to increase the data-hiding capacity. The simulation results demonstrate that the proposed algorithm generates a superior performance in the peak signal to noise ratio (PSNR) values and the embedding capacity. © 2013 Taylor & Francis.
- KSP 제안 키워드
- Difference image, Even-odd, Hidden data, Histogram shifting, Multi-level, Peak-Signal-to-Noise-Ratio(PSNR), Reversible Data Hiding, Signal noise ratio(SNR), embedding capacity, hiding capacity, histogram modification(HM)