System and method for scanned image bleedthrough processing

Details System and method for scanned image bleedthrough processing System and method for scanned image bleedthrough processing

2007-04-24

2007-04-24

Bali, Vikkram (Department: 2624)

Image analysis

Image enhancement or restoration

Artifact removal or suppression

C382S274000

Reexamination Certificate

active

10194349

ABSTRACT:
Disclosed are systems and methods for identifying bleedthrough in an image in which a reference tone point of a first image is determined, putative bleedthrough pixels in the first image are identified as a function of the reference tone point, the putative bleedthrough pixels are mapped into a putative bleedthrough representation of said first image, and the putative bleedthrough pixel mapping is analyzed to determine if bleedthrough is present in said first image. Also disclosed are systems and methods for removing bleedthrough from an image in which a document is scanned to provide an electronic first image and an electronic second image, a putative bleedthrough pixel mapping for the first image is generated, the putative bleedthrough pixel mapping is processed using information with respect to said second image, and pixels of the first image corresponding to putative bleedthrough pixels of said mapping are replaced.

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