Color-based text extraction for the image

Authors:
Jian Yi;Yuxin Peng;Jianguo Xiao
Affiliations:
Institute of Computer Science and Technology, Peking University, Beijing, China and State Key Laboratory of Text Processing Technology, Peking University, Beijing, China;Institute of Computer Science and Technology, Peking University, Beijing, China and State Key Laboratory of Text Processing Technology, Peking University, Beijing, China;Institute of Computer Science and Technology, Peking University, Beijing, China and State Key Laboratory of Text Processing Technology, Peking University, Beijing, China
Venue:
PCM'07 Proceedings of the multimedia 8th Pacific Rim conference on Advances in multimedia information processing
Year:
2007

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Abstract

In this paper, we focus on the text extraction of image, and propose a new approach for it into two phases: Firstly, for the effective binarization of text region image, instead of performing the binarization in a constant color plane as in the existing methods, our approach adaptively selects the relatively best color plane for the binarization, which uses the text contrast difference among the color planes. Secondly, to remove the noise in the binary image, we consider the color difference between the text strokes and noises, and the colorbased clustering is then utilized to remove the noise for the effective text recognition. The experimental result has shown that the proposed approach is better than the existing methods in terms of the performance of text extraction.