基于正交小波变换和伪彩色的遥感图像增强  

Remote Sensing Image Enhancement Based on Orthogonal Wavelet Transformation and Pseudo-color Image Processing

作　　者：王智文[1,2] 李绍滋[2] 刘美珍[3] 周健[4] 

机构地区：[1]广西工学院计算机工程系,广西柳州545006 [2]厦门大学智能科学与技术系,福建厦门361005 [3]广西工学院图书馆,广西柳州545006 [4]中南林业科技大学机电学院,湖南长沙410004

出　　处：《计算机测量与控制》2010年第7期1602-1605,共4页Computer Measurement &Control

基　　金：国家自然科学基金项目(60873179);广西教育厅科研项目(200707LX196)

摘　　要：针对基于正交小波分析的图像增强技术一般只适用于黑白图像;而伪彩色处理技术不能够充分处理图像中某些细节信息的缺陷,提出了基于正交小波分析和伪彩色的遥感图像增强处理方法;实验结果表明,增强后的遥感图像无论在视觉效果上还是在噪声特性上都有了很大的改善;该方法简便易行且计算量小,在应用中有较大的灵活性;该方法还具有运算速度快和可操作性强等特点,在遥感图像增强研究方面具有广泛的应用前景。Image enhancement technique based on wavelet analysis is only applicable to black--and--white image, and pseudo--color im- age processing technology can not adequately deal with some of the details information of the image. In this paper, enhancement approach of remote sensing image based on orthogonal wave｜et analysis and pseudo--color image processing is put forward. Enhanced remote sensing im- age have been greatly improved in both visual effects and noise characteristics. The method is simple to implement, and need less calculation, and its application is more flexible. This method also has the characteristics of faster computing speed and operating feasibly and so on. It has broad application prospects in research of remote sensing image enhancement.

关 键 词：正交小波变换 遥感图像处理 伪彩色处理 图像增强 信息熵 清晰度 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]