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Reversible data hiding employing histogram shifting using a rotated even–odd difference image
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- Authors
- Sang-Kwang Lee, Hyang-Mi Yoo, Jae-Won Suh
- Issue Date
- 2013-12
- Citation
- New Review of Hypermedia and Multimedia, v.19, no.3-4, pp.234-247
- ISSN
- 1361-4568
- Publisher
- Taylor & Francis
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- Difference image, Embedding Capacity, Hidden data, Hiding capacity, Histogram Shifting(HS), Location map, Multi-level, Peak-Signal-to-Noise-Ratio(PSNR), Signal noise ratio(SNR), histogram modification, reversible data hiding