J-GLOBAL ID:200904061860531753  Research Project code:9910000962 Update date:Dec. 15, 2003

Study on digital watermark

Study period:1998 - 1998
Organization (1):
Investigating Researcher (2):
Research overview:
The technique filling data in frequency component of still image is studied in order to develop a technique maintaining validity of the digital watermarks after some data processes including image compression.

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