规则文档图像噪声处理方法  

Processing Method of Noise tn Standard Document Image

作　　者：靳从[1] 

机构地区：[1]南京理工大学计算机系,南京210094

出　　处：《仪器仪表学报》2003年第z2期393-394,共2页Chinese Journal of Scientific Instrument

摘　　要：文档在数字化过程中所形成的图像噪声将直接影响到后续字符识别的效果。本文基于文档图像的自身特点,将图像的全局与局部特征相结合,提出了一种去除图像噪声的简单方法,分层次地针对不同类型的噪声采取相应的处理。获得比较理想的效果。实验结果表明,这种方法能够对规范的文档图像进行处理,具有较好的适应性和较高的效率。Document digialization will cause image noise and this influences the result of character recognition di- rectly. In this paper, a brief method for de-noise in document image is put forward, which is based on the feature of image and the combination of overall and local characteristic of these features. Different noises are treated with corresponding methods logically. Experiment result shows it has adaptive capability and efficiency in pro- cessing standard document image.

关 键 词：文档图像 噪声处理 投影法 二值化 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]