计算机与现代化Issue(7)：117-119,234,4.DOI:10.3969/j.issn.1006-2475.2013.07.031
基于直方图分析和OTSU算法的文字图像二值化
Binarization of Text Image Based on Histogram Analysis and OTSU Algorithm
摘要
Abstract
The quality of binarization algorithm of text image directly affects the character recognition performance of text extraction based on gray-level image.Compared with several common binarization algorithms,this paper proposes an improved algorithm combined histogram analysis with OTSU.By means of the interval analysis and classification in histogram information,the algorithm reduces the search range of threshold value,and utilizes OTSU to get the optimal threshold value.The experimental results show that it offers key techniques to reduce the light influence of OTSU,and is of general segmentation applicability.关键词
自然场景；二值化/直方图/OTSUKey words
natural scenes/binarization/histogram/OTSU分类
信息技术与安全科学引用本文复制引用
吴丹,蔡晓东,谢月飞,曾威..基于直方图分析和OTSU算法的文字图像二值化[J].计算机与现代化,2013,(7):117-119,234,4.基金项目
国家科技支撑计划项目(2012BAH20B01,SQ2013SF13E01444) （2012BAH20B01,SQ2013SF13E01444）
广西自然科学基金资助项目(2010GXNSFC013014) （2010GXNSFC013014）
广西科学研究与技术开发计划项目(桂科攻111007006-23) （桂科攻111007006-23）
