A Review of Document Binarization: Main Techniques, New Challenges, and Trends
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Published:2024-04-07
Issue:7
Volume:13
Page:1394
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ISSN:2079-9292
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Container-title:Electronics
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language:en
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Short-container-title:Electronics
Author:
Yang Zhengxian1, Zuo Shikai1, Zhou Yanxi1, He Jinlong1, Shi Jianwen1
Affiliation:
1. School of Opto-Electronic and Communication Engineering, Department of Microelectronics, Xiamen University of Technology, Xiamen 361024, China
Abstract
Document image binarization is a challenging task, especially when it comes to text segmentation in degraded document images. The binarization, as a pre-processing step of Optical Character Recognition (OCR), is one of the most fundamental and commonly used segmentation methods. It separates the foreground text from the background of the document image to facilitate subsequent image processing. In view of the different degradation degrees of document images, researchers have proposed a variety of solutions. In this paper, we have summarized some challenges and difficulties in the field of document image binarization. Approximately 60 methods documenting image binarization techniques are mentioned, including traditional algorithms and deep learning-based algorithms. Here, we evaluated the performance of 25 image binarization techniques on the H-DIBCO2016 dataset to provide some help for future research.
Funder
Natural Science Foundation of Fujian Province of China Educational Teaching Reform Research Project of Xiamen University of Technology in 2022
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