Image analysis – Image enhancement or restoration
Reexamination Certificate
2010-06-10
2011-10-25
Cunningham, Gregory F (Department: 2624)
Image analysis
Image enhancement or restoration
C382S169000, C382S172000
Reexamination Certificate
active
08045818
ABSTRACT:
Background images are removed and only desired payment information is extracted from a grayscale image of a check or similar financial instrument. A density distribution improvement process applied to grayscale raw image data40acquired by scanning a check corrects the density distribution of the raw image data40to separate the density range of the desired payment information from the density range of the background image. A threshold level44for clearly separating the payment information from the background image is then calculated from the characteristics of the density distribution of the grayscale improved image data42acquired by the density distribution improvement process. Histograms of the density distributions are used to determine the characteristics of the density distribution. The improved image data42is then converted to binary image data46using the threshold level44.
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Japanese Patent Office , Office Action in Japanese Patent Application No. JP2005-209499, Aug. 3, 2010 with English Machine Translation.
Furuhata Tadashi
Katagiri Masahiro
Sato Yoshitake
Cunningham Gregory F
Seiko Epson Corporation
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