Image analysis – Applications
Reexamination Certificate
2008-07-03
2011-12-27
Newman, Michael A (Department: 2624)
Image analysis
Applications
C382S112000, C382S173000, C382S176000, C382S180000, C382S194000, C358S003280, C705S057000, C705S058000
Reexamination Certificate
active
08085972
ABSTRACT:
A protection method for preventing a hard copy of a document from being released or reproduced is provided. The protection method comprises: selecting a pattern with a closed contour line and utilizing a level set method to process the pattern to generate at least a watermark; and embedding the watermark into the document. In addition, the protection method can further comprise: detecting the hard copy of the document to determine whether at least a watermark exists in the hard copy of the document; and forbidding releasing or reproducing the document when the watermark is detected in the hard copy of the document.
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Huang Ying-Jieh
Kuo Chung-Chieh
Kwak Young-Min
Liu Xu-Hua
Hsu Winston
Margo Scott
Newman Michael A
Primax Electronics Ltd.
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