基于MATLAB的红外/射线图像增强方法研究  

Study of Infrared/Ray Image Enhancement Method based on MATLAB

作　　者：韩超[1] 王小妮[1] 

机构地区：[1]中北大学信息与通信工程学院国家重点实验室,山西太原030051

出　　处：《红外》2008年第2期1-4,共4页Infrared

基　　金：国家自然科学基金(60602041)

摘　　要：无损检测(NDT)系统产生的图像通常存在着由随机干扰等因素引起的噪声,为了进行下一步的图像分析,图像增强是一步很重要的前期处理工作。图像增强的方法分为空域法和频域法两类,本文将灰度变换和小波变换的图像处理技术引入无损检测(NDT)图像处理中,运用MATLAB图像处理工具,对图像从空域和频域两方面进行增强,并在MATLAB语言环境下编程实现这两种方法。实验结果表明,应用MATLAB进行图像增强处理具有理想的效果和很高的工程价值。Usually, there are some noises caused by the factors such as stochastic disturbance etc. in the images produced by a nondistructive test system （NDT）. To make a further analysis of these images, the image enhancement as an important preprocessing work is necessary. The image enhancement methods can be divided into two classes： frequency domain processing and spacial domain processing. In this paper, the image processing technologies such as gray transform and wavelet transform axe introduced into the NDT image processing and the MATLAB image processing tool is used to enhance the images in two aspects of frequency domain and spaciai domain. These two methods axe implemented by programming in the MATLAB language environment. The experimental results show that the use of MATLAB in image enhancement processing can result in ideal effectiveness and is of great value to engineering.

关 键 词：红外 射线 图像增强 无损检测 灰度变换 小波变换 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]