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      Orthogonal transform watermarking techniques for authentification of digital images and documents.

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      EEE-THESES_1133.pdf (1.495Mb)
      Author
      Shu, Feng.
      Date of Issue
      2005
      School
      School of Electrical and Electronic Engineering
      Abstract
      In our transform-domain-based watermarking algorithms, two-level quantization is employed for both watermark embedding and extraction processes. Our public watermarking method is essentially extended from the semi-private approach and a spread-spectrum (SS) technique, which has been widely used in digital communication, is employed.
      Subject
      DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
      Type
      Thesis
      Rights
      Nanyang Technological University
      Collections
      • EEE Theses (Open Access)

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