RULED LINE DELETION DEVICE, CHARACTER PICTURE EXTRACTION DEVICE, RULED LINE DELETION METHOD, CHARACTER PICTURE EXTRACTION METHOD AND STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To make it possible to extract a character picture so that precise character recognition is performed even with the character picture a character of which is swollen out from a frame and crosses a ruled line. ;SOLUTION: A ruled line deletion device is equipped with a black column extraction means 9 for extracting a black column in a binary picture, a histogram generation means 11 for generating a histogram of a length of the black column, a peak detection means 13 for detecting a peak of the length of the black column from the histogram of the length of the black column and a ruled line deletion means 14 for deleting a ruled line by changing a black pixel into a white pixel corresponding to the black column having the peak.;COPYRIGHT: (C)2000,JPO