Digital watermark embedding and detection

Details Digital watermark embedding and detection Digital watermark embedding and detection

2008-04-25

2011-12-13

Hung, Yubin (Department: 2624)

Image analysis

Applications

C382S202000, C358S003280, C713S176000

Reexamination Certificate

active

08077910

ABSTRACT:
Provided is a digital watermarking technology for embedding digital watermark information in text data thereby to generate a digitally watermarked image. The technology includes a digital watermarking program, a digital watermarking device and a digital watermarking method, in which digital watermark information can be embedded in document in such a way as not to be easily detected visually and be stably detected even after being printed out, copied or scanned by detecting the features of a character as data to be digitally watermarked, such as the direction and thickness of a line composing the character as the features thereof and embedding the digital watermark information in the character on the basis of the detected features.

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