Reliable embedding for robust reversible watermarking

  • Authors:
  • Lingling An;Xinbo Gao;Cheng Deng

  • Affiliations:
  • Xidian University, Xi'an, China;Xidian University, Xi'an, China;Xidian University, Xi'an, China

  • Venue:
  • ICIMCS '10 Proceedings of the Second International Conference on Internet Multimedia Computing and Service
  • Year:
  • 2010

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Abstract

It has been demonstrated that De. Vleeschouwer's histogram rotation (HR) scheme suffers from serious "salt-and-pepper" noise in the watermarked images. Recently, some improved methods are proposed to handle this problem. However they are at the cost of capacity. For this purpose, we first develop a reliable histogram rotation method based on block selection (RHR-BS) to avoid the flipping of pixels and to improve the invisibility and reversibility of HR. In view of a little reduction of capacity in RHR-BS, a reliable HR method based on pixel adjustment (RHR-PA) is then proposed, which modulates the range of grayscale values of pixels to remove the "salt-and-pepper" noise in HR, and to avoid the decrease of capacity in RHR-BS. Extensive experiments are conducted to show the effectiveness of the proposed RHR-BS and RHR-PA.