Multi-level watermarking with independent decoding

M. Butman, H. Z. Hel-Or

Research output: Contribution to conferencePaperpeer-review


A drawback of most watermarking techniques is the need for some additional information in order to retrieve the watermark. Additionally, the robustness of the watermark decreases as the number of information bits stored in the image increases. We present a Watermarking technique which requires no information for decoding in addition to the watermarking image. The watermark is multi-level with few bits embedded robustly at low levels and longer watermark sequences embedded less robustly at higher levels. This allows detection of "tampered" and "attacked" images by detection of existence of the watermarking at low levels and deterioration of the watermark at high levels. In order to prevent interference of the watermarks at different levels various image representation spaces are used. The watermark is shown to be non visible and robust.

Original languageEnglish
Number of pages4
StatePublished - 2001
Externally publishedYes
EventIEEE International Conference on Image Processing (ICIP) - Thessaloniki, Greece
Duration: 7 Oct 200110 Oct 2001


ConferenceIEEE International Conference on Image Processing (ICIP)

ASJC Scopus subject areas

  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering


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