Abstract
A novel self-embedding watermarking scheme is proposed, in which the reference data derived from the most significant bits (MSB) of host image and the localization data derived from MSB and reference data are embedded into the least significant bits (LSB) of the cover. At authentication side, while the localization data are used to detect the blocks containing substitute information, the reference data extracted from other regions and the spatial correlation are exploited to recover the principal content in tampered area by a pixel-by-pixel manner. In this scheme, the narrower the tampered area is, the higher quality of recovered content can be obtained.
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Acknowledgments
This work was supported by the Natural Science Foundation of China (60872116, 60832010, and 60773079), the Shanghai Rising-Star Program (10QH14011), and the Key Scientific Research Project of Shanghai Education Committee (10ZZ59).
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Zhang, X., Wang, S., Qian, Z. et al. Self-embedding watermark with flexible restoration quality. Multimed Tools Appl 54, 385–395 (2011). https://doi.org/10.1007/s11042-010-0541-z
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DOI: https://doi.org/10.1007/s11042-010-0541-z