Image analysis – Applications
Reexamination Certificate
2005-11-29
2005-11-29
Mehta, Bhavesh M. (Department: 2625)
Image analysis
Applications
C382S293000, C375S240210
Reexamination Certificate
active
06970575
ABSTRACT:
A digital watermark information is extracted from geometrically deformed image without using a calibrating digital watermark. Pixel data at positions predetermined in an X-Y coordinate used when embedding the watermark is extracted from image data in which the digital watermark has been embedded for given pixel data and compared with a reference value to determine whether the watermark has been embedded in the pixel data concerned or not. This processing is repeated until it is confirmed that the information is embedded in the pixel data concerned, while applying geometric deformation to the image data.
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Anzai Kousuke
Echizen Isao
Kurosu Yutaka
Yoshiura Hiroshi
Azarian Seyed
Mehta Bhavesh M.
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