Electronic document, genuineness management method for print...

Details Electronic document, genuineness management method for print... Electronic document, genuineness management method for print...

2007-05-29

2007-05-29

Mehta, Bhavesh M (Department: 2624)

Image analysis

Applications

Reexamination Certificate

active

10378113

ABSTRACT:
A method for managing genuine characteristics of both an electronic document and a print medium comprising: a step for recognizing image data contained in the electronic document; a step for applying an extraction condition of an image feature previously determined and must be considered to the recognized image data to calculate a coordinate set corresponding to a pixel or a set of pixels, constituting the image feature; a step for recognizing at least a coordinate value among coordinate values and pixel color values, corresponding to each of coordinates constituting the coordinate set, and for embedding the recognized coordinate value as a code of a digital watermark into the pixel or the pixel set, constituting the image feature, or into an area in the vicinity; and a step for outputting the electronic document where the digital watermark embedding process operation has been carried out to the print medium.

REFERENCES:
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patent: 2003/0149879 (2003-08-01), Tian et al.
patent: 2003/0223584 (2003-12-01), Bradley et al.
patent: 2005/0135656 (2005-06-01), Alattar et al.

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