Title :
Separation of overlapped color planes for document images
Author :
Zheng, Danian ; Sun, Jun ; Naoi, Satoshi ; Suwa, Misako ; Takebe, Hiroaki ; Hotta, Yoshinobu
Author_Institution :
Fujitsu R&D Co. Ltd., Beijing, China
Abstract :
Color plane separation is very useful in processing color document images. Many reported methods take it as a multi-class classification problem and work not well in overlapped color regions. This paper proposed a simple but effective linear projection based method for separating overlapped color planes. The separation task is taken as a probability problem, i.e., in the output plane, target color should have high response and the other colors should have low response, or vice versa. Furthermore, it assumes that the number of foreground colors is low, typically one to four, and overlapped areas contain mixed colors instead of opaque covering. Experimental results demonstrate the effectiveness and flexibility of our method.
Keywords :
image colour analysis; color plane separation; document image; linear projection method; multiclass classification problem; overlapped color plane; Color; Conferences; Feature extraction; Image color analysis; Pixel; Principal component analysis; Text analysis; Color planes; color clusters; color mixing; document images; projection axis;
Conference_Titel :
Image Processing (ICIP), 2010 17th IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-7992-4
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2010.5653139