%0 Journal Article
%T APPROACH TO ENHANCE CONTRAST OF INFRARED IMAGE BASED ON WAVELET TRANSFORM<br>一种红外图像对比度增强的小波变换法
%A ZHANG Chang Jiang
%A FU Meng Yin
%A JIN Mei
%A ZHANG Qi Hong
%A <br>张长江
%A 付梦印
%A 金梅
%A 张启鸿
%J 红外与毫米波学报
%D 2004
%I Science Press
%X A new method to enhance the contrast of infrared image was given, which was based on discrete stationary wavelet transform and non linear gain. After making discrete stationary wavelet transform to an infrared image, de noising is done in the high frequency sub bands with better resolution. Enhancement effect is obvious by combining de noising method with non linear gain method in the high frequency sub bands with worse resolution. A new criterion to evaluate quality of image was given. Experimental results show that the new method can reduce colored noise, additive gauss white noise and speckle noise in infrared image effectively while it also enhances the contrast of infrared image well.
%K stationary wavelet transform
%K generalized cross validation
%K de
%K noising by threshold
%K contrast enhancement
%K non
%K linear gain<br>红外图像
%K 平稳小波变换
%K 广义交叉确认
%K 阈值去噪
%K 对比度增强
%K 非线性增益
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=D3B4F771D1A06062008B4D0A2EF05996&aid=983B5D9A9A33E2F9&yid=D0E58B75BFD8E51C&vid=EA389574707BDED3&iid=0B39A22176CE99FB&sid=EFD65B51496FB200&eid=2F56B21F91C9B05B&journal_id=1001-9014&journal_name=红外与毫米波学报&referenced_num=13&reference_num=17