| 视觉文档图像中反渗噪声的去除方法 |
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| 引用本文： | 田学东,郝永,哈明虎,田大增. 视觉文档图像中反渗噪声的去除方法[J]. 计算机工程与设计, 2007, 28(20): 4949-4951 |
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| 作者姓名： | 田学东 郝永 哈明虎 田大增 |
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| 作者单位： | 河北大学,数学与计算机学院,河北,保定,071002;河北大学,物理科学与技术学院,河北,保定,071002 |
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| 基金项目： | 国家自然科学基金 , 河北省科学技术研究与发展计划 |
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| 摘 要： | 提出根据直方图特征去除视觉文档图像反渗噪声的方法.对于灰度直方图呈双峰特性的噪声图像,选取适当区域分别进行增强或归一化处理以达到去除反渗噪声的目的;而对于直方图呈单峰特性的含反渗噪声图像,建立了一种基于背景分离的新算法.实验结果表明,该方法可以有效去除视觉文档图像中的反渗噪声.
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| 关 键 词： | 视觉文档图像 反渗噪声 灰度直方图 图像增强 背景分离 |
| 文章编号： | 1000-7024（2007）20-4949-03 |
| 修稿时间： | 2007-03-05 |
Algorithms for elimination of back-to-front interference of visual document images |
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| TIAN Xue-dong,HAO Yong,HA Ming-hu,TIAN Da-zeng. Algorithms for elimination of back-to-front interference of visual document images[J]. Computer Engineering and Design, 2007, 28(20): 4949-4951 |
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| Authors: | TIAN Xue-dong HAO Yong HA Ming-hu TIAN Da-zeng |
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| Affiliation: | 1. College of Mathernatics and Computer Science, Hebei University, Baoding 071002, China; 2. College of Physics Science and Technology, Hebei University, Baoding 071002, China |
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| Abstract: | An approach of eliminating back-to-front interference in visual document image is put forward according to histogram features.When the gray-level histogram of image is bimodal,the selected areas in the image are either enhanced or normalized to eliminate the back-to-front interference;in case of the images with unimodal gray-level histogram,an algorithm based on image background separation is proposed.The experiments showed that these two algorithms achieve favorable results. |
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| Keywords: | visual document image back-to-front interference gray-level histogram image enhancement image background separation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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