无线电工程
無線電工程
무선전공정
RADIO ENGINEERING OF CHINA
2015年
2期
26-29
,共4页
周小军%谭薇%刘萌%唐卫斌
週小軍%譚薇%劉萌%唐衛斌
주소군%담미%류맹%당위빈
红外图像%同态滤波%对比度增强%直方图均衡
紅外圖像%同態濾波%對比度增彊%直方圖均衡
홍외도상%동태려파%대비도증강%직방도균형
infrared image%homomorphic filtering%contrast enhancement%histogram equalization
针对红外图像分辨率低、对比度低和目标弱小等缺点,提出了一种红外图像对比度增强新方法。该方法利用频率域的同态滤波,对红外图像的细节进行对比度增强处理。同时为进一步增强图像对比度,提高分辨率,利用限制对比度自适应直方图均衡方法调整图像的有效灰度动态范围。通过大量实验验证表明,该方法显著提高红外图像的对比度和可辨识率,改善了图像质量。
針對紅外圖像分辨率低、對比度低和目標弱小等缺點,提齣瞭一種紅外圖像對比度增彊新方法。該方法利用頻率域的同態濾波,對紅外圖像的細節進行對比度增彊處理。同時為進一步增彊圖像對比度,提高分辨率,利用限製對比度自適應直方圖均衡方法調整圖像的有效灰度動態範圍。通過大量實驗驗證錶明,該方法顯著提高紅外圖像的對比度和可辨識率,改善瞭圖像質量。
침대홍외도상분변솔저、대비도저화목표약소등결점,제출료일충홍외도상대비도증강신방법。해방법이용빈솔역적동태려파,대홍외도상적세절진행대비도증강처리。동시위진일보증강도상대비도,제고분변솔,이용한제대비도자괄응직방도균형방법조정도상적유효회도동태범위。통과대량실험험증표명,해방법현저제고홍외도상적대비도화가변식솔,개선료도상질량。
Aiming at the disadvantages of infrared image,such as low resolution,low contrast and weak target,this paper proposes a new method of contrast enhancement of infrared image.This method first uses homomorphic filtering to enhance the detail of infrared image.Meanwhile,in order to further enhance image contrast and improve the resolution,the contrast limit adaptive histogram equalization method is used to adjust the effective dynamic range of gray image.A large number of experimental results show that the new method can greatly improve infrared image contrast and resolution,and effectively enhance the image quality.