%0 Journal Article
%T Digital Radiography Image Adaptive Enhancement Based on Wavelet Transform<br>基于小波变换的数字胸片自适应增强
%A 张道兵
%A 张继武
%A 许朝晖
%A 史舒娟
%J 光子学报
%D 2005
%I 
%X The equivalence equation in wavelet domain is deduced from the basic theory of adaptive image contrast enhancement in time domain.Based on the principle of visually receptive psychology, the gain should be determined by the background of the image.At the same time, the gain should be adjusted when taking the trait of the digital radiography with important details lie in medium spatial frequency into account.The experiment results show that wavelet adaptive enhancement with adjusted gain is effective for the enhancement of the detail information in digital radiography.
%K Adaptive enhancement
%K Wavelet transform
%K Digital radiography<br>自适应增强
%K 小波变换
%K 数字胸片
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=8DF5B1403C680E23&yid=2DD7160C83D0ACED&vid=339D79302DF62549&iid=0B39A22176CE99FB&sid=119B6C0AA09DE6B9&eid=407C905D8F0449C4&journal_id=1004-4213&journal_name=光子学报&referenced_num=6&reference_num=8