Electronic color dropout utilizing spatial context to...

Details Electronic color dropout utilizing spatial context to... Electronic color dropout utilizing spatial context to...

2006-03-28

2006-03-28

Johns, Andrew W. (Department: 2621)

Image analysis

Color image processing

Drop-out color in image

C382S172000

Reexamination Certificate

active

07020328

ABSTRACT:
A method for electronic color dropout utilizing spatial context to enhance accuracy comprises scanning a document to produce a color digital image. A thresholding apparatus is applied to the color digital image to produce a bitonal image. A region of the color digital image is selected corresponding to a feature of the bitonal image. An average color for the region is computed and compared to a predetermined dropout color. If the average color matches the predetermined dropout color, the region is erased from the bitonal image. Once it is determined that all features of the bitonal image have been examined, the process is complete. If all the features of the bitonal image have not been examined a region of the color digital image is selected corresponding to a feature of the bitonal image.

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