Embedding strategy for image watermarking in DCT domain

Jiwu Huang, Yun Q. Shi

Research output: Contribution to conferencePaperpeer-review

6 Scopus citations

Abstract

Where should invisible image watermarks be embedded in the DCT domain in order for the watermarks to be robust? Though many papers in the literature agree that watermarks should be embedded in perceptually significant components, DC components are explicitly excluded from watermark embedding. A new embedding strategy for watermarking is proposed based on a quantitative analysis on magnitude of DCT components. We argue that more robustness can be achieved if watermarks are embedded in DC components since DC components have a much larger perceptual capacity than any AC components. Based on this idea, a watermarking algorithm is presented. We incorporate the feature of texture masking of the human vision system into watermarking. Experimental results demonstrate that the invisible watermarks thus embedded are very robust.

Original languageEnglish (US)
Pages981-984
Number of pages4
DOIs
StatePublished - Jan 1 1998
Event5th Asia-Pacific Conference Communications and 4th Optoloelectronics Communications Conference, APCC/OECC 1999 - Beijing, China
Duration: Oct 18 1999Oct 22 1999

Other

Other5th Asia-Pacific Conference Communications and 4th Optoloelectronics Communications Conference, APCC/OECC 1999
Country/TerritoryChina
CityBeijing
Period10/18/9910/22/99

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering
  • Communication
  • Computer Networks and Communications

Keywords

  • embedding strategy
  • image Watermarking
  • robustness
  • visual masking

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