Novel robust image watermarking using difference correlation detector

Wei Lu, Hongtao Lu, Fu Lai Korris Chung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


This paper presents a robust digital image watermarking scheme based on subsampling and difference correlation. Four subimages are obtained from the host image by subsampling. A binary watermark is bit-wisely embedded in the DCT domain of two of the subimages selected by a secret key. The watermark is detected using coefficient difference correlation and does not need the original image. Since the subimages are highly correlated with each other, the proposed difference correlation detector has a better performance than a common coefficient correlation detection. Experimental results show good robustness of the proposed scheme.
Original languageEnglish
Pages (from-to)132-137
Number of pages6
JournalComputer Standards and Interfaces
Issue number1
Publication statusPublished - 1 Jan 2007


  • Difference correlation detector
  • Digital image watermarking
  • Subsampling

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Law


Dive into the research topics of 'Novel robust image watermarking using difference correlation detector'. Together they form a unique fingerprint.

Cite this