Show-through correction for two-sided documents

Details Show-through correction for two-sided documents Show-through correction for two-sided documents

1997-05-01

1998-11-03

Rogers, Scott

Image analysis

Image enhancement or restoration

Artifact removal or suppression

358463, 358464, 358401, G06K 1502, H04N 123, H04N 138, H04N 1409

Patent

active

058321373

ABSTRACT:
An image processing method for mitigating the effects of show-through in scanning a duplexed document in a duplex scanning system, including: deriving a scanned first side image P from a first side image A of a duplexed document and a scanned second side image Q from a second side image B of the duplexed document, at least the first side image P including a component thereof attributable to show-through from the second side of the document, and storing images P and Q; from second side image Q, generating a representation thereof corresponding to the show-through contribution to first side image P; processing image P to remove show-through as a function of the representation Q, thereby deriving correct image A.

REFERENCES:
patent: 5646744 (1997-07-01), Knox

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