The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 25, 1992

Filed:

Apr. 01, 1991
Applicant:
Inventor:

Shoji Shimomura, Tokyo, JP;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382-9 ; 382 18 ; 382 48 ; 382 51 ; 358462 ; 358464 ;
Abstract

A peripheral distribution of filled pixels in a document image is calculated by projecting the filled pixels in an X-axis or a Y-axis direction. A bottom part in the peripheral distribution is detected. The document image is divided into a plurality of primary image regions in accordance with a dividing line intersecting the bottom part in the X-axis or Y-axis direction, so that the document image is classified into text regions, drawing regions and picture regions. Thus, the text regions can be extracted automatically from the document image without requiring a specific manual operation for extracting text regions by an operator.


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