A Review: Detection And Removal Of Hand-Drawn Annotation Lines
nowadays with the demand of computer vision, the importance of document images is increasing in various
application areas and thus it is becoming important to improve the performance of optical character recognition. Performance
of optical character recognition is badly affected due to hand-drawn annotation and underlines. Such annotation lines are
normally drawn by reader in free hand to summarize some text. Thus the focus of this paper is on detection and removal
techniques. Detection and Removal of various types of annotation lines such as untouched touched, straight, circular and other
text surroundings lines.
Index Terms- Hand-drawn annotation lines, Text surrounding lines, Optical character recognition, untouched and touched