System with a random number generator used to remove...

Details System with a random number generator used to remove... System with a random number generator used to remove...

2003-03-13

2008-03-25

Lee, Thomas D. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C382S266000

Reexamination Certificate

active

07349126

ABSTRACT:
The present invention is a method of image data processing that includes determining whether the image data indicates photodiode saturation, and removing contouring from the image data caused by the saturation. The contour artifact removal is accomplished by adding a random number to adjusted photodiode data from an extended range imager when the data from the imager indicates that the photodiode has been saturated. The adjusted photodiode data is a sum of photodiode data and spillover rate adjusted diffusion data.

REFERENCES:
patent: 5101452 (1992-03-01), Tsai et al.
patent: 5896469 (1999-04-01), Murakami
patent: 6040876 (2000-03-01), Pettitt et al.
patent: 0 270 259 (1988-06-01), None
patent: 1 096 789 (2001-05-01), None
patent: 1 096 790 (2001-05-01), None

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