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The defense date of the thesis is 2005-08-24
The current date is 2019-05-24
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URN etd-0824105-105225 Statistics This thesis had been viewed 2039 times. Download 8 times. Author Huang Hsuan-Chieh Author's Email Address No Public. Department Computer Science and Enginerring Year 2005 Semester 2 Degree Master Type of Document Master's Thesis Language English Page Count 65 Title A Copyright Protection Scheme for Gray-Level Images Using Human Fingerprint images as Watermarks Keyword watermark fingerprint enhancement fingerprint enhancement watermark Abstract The thesis proposes a copyright protection scheme using enhanced fingerprint images as watermarks. The scheme includes enhancing fingerprint image and generating a share image to retrieve fingerprint image. If unauthorized copies are found later, the origin of the copy can be determined by the retrieved fingerprint image. In the thesis, fingerprint image enhancement technique is employed prior to feature extraction to obtain a more reliable estimation of feature locations. In addition, the thesis employs correction to reform the quality of the fingerprint image.
The experimental results show that the scheme can withstand 9 kinds of common image processing operations, including JPEG compression, blurring, sharpening, cropping, scaling, pinch, punch, “row and column shifting,” and “rotation and scaling.” In the experimental results, all of the fingerprint image can be accepted by the identification system.
Advisor Committee Shang-Lin Hsieh - advisor
Files Date of Defense 2005-07-28 Date of Submission 2005-08-24