Multi-color dropout for scanned document

Details Multi-color dropout for scanned document Multi-color dropout for scanned document

2007-02-26

2010-12-14

Bali, Vikkram (Department: 2624)

Image analysis

Color image processing

Drop-out color in image

C235S454000, C235S456000, C382S317000, C715S234000

Reexamination Certificate

active

07853074

ABSTRACT:
A method for removing unwanted form color content from a scanned document by segmenting the image into two or more tiles (14). Each tile (14) is classified into at least a first and second set according to its combination of background and color content. A background color is identified from the first set of tiles (14). At least one form color is identified from the second set of tiles. A transform is applied that shifts form color image data values toward background color data values.

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