Method and apparatus for selective processing of captured...

Details Method and apparatus for selective processing of captured... Method and apparatus for selective processing of captured...

2001-08-02

2008-08-26

Coles, Sr., Edward L. (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S483000, C358S512000, C358S530000, C358S518000, C382S287000, C382S317000, C382S306000, C705S012000

Reexamination Certificate

active

07417774

ABSTRACT:
Methods and apparatus are disclosed for identifying intended response marks in an optically scanned image of a response sheet having key marks and response targets printed in the same color. Pixel darkness values assigned by a digital imaging scanner are used to locate key marks and response targets and to identify response marks. Areas of the sheet may be selectively filtered to mask the response targets. Alternatively, a color imaging scanner may be used to produce a set of color values, such as RBG values, for each pixel. Software can act as a virtual filter by using the RBG values to detect or to mask a color in the image.

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