Pixel-based pixel value ordering predictor for high-fidelity reversible data hiding

Xiaochao Qu, Hyong Joong Kim

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

A pixel-value-ordering (PVO) predictor has been used in reversible data hiding methods to produce high-fidelity marked images when the payload size is moderate. The original PVO generates predictions in a block-by-block manner where only two pixels can be predicted in each block. In this paper, a novel pixel-based PVO (PPVO) is proposed with which each pixel is predicted using its sorted context pixels. The benefit of the PPVO is that the pixels in smooth image regions can be better used to embed data, while most of those pixels are neglected in PVO due to the block constraint. Experimental results demonstrate that the embedding capacity of PPVO is larger than that of PVO, especially for relatively smooth images. The obtained marked image quality of PPVO is also better than that of PVO and other state-of-the-art reversible data hiding methods.

Original languageEnglish
Pages (from-to)249-260
Number of pages12
JournalSignal Processing
Volume111
DOIs
Publication statusPublished - 2015 Jan 1

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Pixels
Image quality

Keywords

  • Pixel selection
  • Pixel value ordering
  • Pixel-based pixel value ordering
  • Reversible data hiding

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition

Cite this

Pixel-based pixel value ordering predictor for high-fidelity reversible data hiding. / Qu, Xiaochao; Kim, Hyong Joong.

In: Signal Processing, Vol. 111, 01.01.2015, p. 249-260.

Research output: Contribution to journalArticle

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