%0 Journal Article
%T Edge detection of rubbing text images based on wavelet transform<br>基于小波变换的拓片文字边缘检测*
%A YANG Shi-jun
%A HUANG Yong-dong
%A <br>杨世军
%A 黄永东
%J 计算机应用研究
%D 2010
%I 
%X The text images obtained through rubbing were featured by many fuzzy details, bad effect and so on, so it might lose more details in the traditional handling process.Proposed a new algorithm of the rubbing text image edge detection and enhancement based on dyadic wavelet transform. Firstly,transformed the rubbing text image using dyadic wavelet. Then combined with the property of cross-scale transmission for wavelet transform modulus value to extract enhance and refine the multi-scale edge. Experiments show this algorithm overcomes the shortcomings of traditional method and weakens the contradiction between the noise suppression and the accuracy of detecting edge details, so it has better practicality.
%K rubbing text images
%K edge detection
%K dyadic wavelet transform
%K multi-scale integration
%K denoise<br>拓片文字图像
%K 边缘检测
%K 二进小波变换
%K 多尺度融合
%K 去噪
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=A9D9BE08CDC44144BE8B5685705D3AED&aid=98C6977497187592A96C474F29D90DB2&yid=140ECF96957D60B2&vid=DB817633AA4F79B9&iid=0B39A22176CE99FB&sid=70081086C74F4110&eid=CA122BD5B2FF2137&journal_id=1001-3695&journal_name=计算机应用研究&referenced_num=0&reference_num=10