Method for applying a digital watermark to an output image...

Details Method for applying a digital watermark to an output image... Method for applying a digital watermark to an output image...

2006-11-21

2006-11-21

Wu, Jingge (Department: 2624)

Image analysis

Image transformation or preprocessing

Image storage or retrieval

C382S100000, C382S232000, C713S176000

Reexamination Certificate

active

07139444

ABSTRACT:
A visible digital watermark is applied to output images from a computer program. Various attributes of the watermark are modified from image to image, making the watermark difficult to remove. For example, a watermark indicating “not for commercial use” can be applied to all output images from the program. Such watermarking permits full functioning demonstration versions of the computer program to be freely distributed to users while commercial use is inhibited. This is accomplished by a minimal level of intrusiveness to file sharing capabilities between a commercial version of the software and a non-commercial version of the software.

REFERENCES:
patent: 6826559 (2004-11-01), Ponte
patent: 6912512 (2005-06-01), Miyazaki et al.
patent: 2002/0107750 (2002-08-01), Kanevsky et al.
patent: 2002/0164047 (2002-11-01), Yuval
patent: 2003/0039376 (2003-02-01), Stach
patent: 2003/0112974 (2003-06-01), Levy
patent: 2003/0196093 (2003-10-01), Raley et al.
patent: 2003/0208679 (2003-11-01), Lopez Vazquez

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