Patent ID: 6654495
Filing Date: 2003-11-25
Classification: G06K,G06T

Abstract:
A method of removing one or more ruled lines from an image having a character portion and ruled line portion, comprising the steps of:(a) detecting one or more scan direction continuous pixel sequences in the image and creating a run-length table managing the start point and run length information of the detected sequences; (b) removing one or more ruled lines from the image by eliminating the detected sequences longer than a predetermined length to create a ruled-line-removed image; (c) filling one or more gaps in the ruled-line-removed character image to create a gap-filled character image; (d) extracting portions of characters which are removed at step (b), from the gap-filled image; and (e) adding the portions of characters to the ruled-line-removed image to restore the character portions removed by the removal of the ruled lines.