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Title page for etd-0824105-110027


URN etd-0824105-110027 Statistics This thesis had been viewed 1788 times. Download 13 times.
Author Lung-Yao Hsu
Author's Email Address No Public.
Department Computer Science and Enginerring
Year 2004 Semester 2
Degree Master Type of Document Master's Thesis
Language English Page Count 65
Title A Copyright Protection Scheme for Color Images Using Secret Sharing and Wavelet Transformation
Keyword
  • watermark
  • secret sharing
  • discrete wavelet transformation
  • copyright protection
  • color image
  • color image
  • copyright protection
  • discrete wavelet transformation
  • secret sharing
  • watermark
  • Abstract A copyright protection scheme for color images using image secret sharing and wavelet transformation is proposed in the paper. The scheme contains a secret image generation phase and a watermark retrieval phase. In the generation phase, the proposed scheme extracts the features from a host color image using the discrete wavelet transformation (DWT). Therewith employs the features and the watermark, a visually recognizable pattern, to generate the secret image using the image secret sharing (ISS). In the retrieval phase, the watermark is retrieved by combining the secret image and the features obtained from the suspect image. The retrieved watermark is then compared with the original watermark for copyright verification. The experiment displays that the proposed scheme can resist several mighty attacks such as JPEG compression, blurring, sharpening, scaling, and varied noise.
    Advisor Committee
  • Shang-Lin Hsieh - advisor
  • Chiung-San Lee - co-chair
  • Liang-Teh Lee - co-chair
  • Files indicate in-campus access at one year and off-campus not accessible
    Date of Defense 2005-07-28 Date of Submission 2005-08-24


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