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公开(公告)号：DE19517178C1
公开(公告)日：1996-11-21
申请号：DE19517178
申请日：1995-05-09
Applicant: IBM
Inventor： BRUEGMANN WINFRIED , SCHROEDER HORST
Abstract: An electronic image obtained from a document is subjected to a process in which the information is filtered in such a way that only the foreground information is extracted. The generated information serves as an output image that is used for image restoration. The information is used as a reference image that is compared with the remaining image data in a process operating on adjacent image points. Typically the heavily filtered image has a number of line points (10) and many of these are eliminated in the comparison process.
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