基于小波变换的图像增强

image Enhancement Based on Wavelet Transform

在一个图像系统中，从图像的获取，到图像的发送、传输、接收、输出（显示）和复制等等，每一个环节都会产生干扰，都会使图像质量降低。如何对这些“降质”图像进行处理，满足实际需要，是图像处理的基本要求。图像增强是图像处理主要内容之一。现有的图像增强方法有很多种，但它们在增强图像的同时，往往会带来了比较严重的负效应。

An image system consists of acquisition, transmission,reception and display, and every part of them can come about disturbance which makes equality of image degradation de.Elementary requirement of image enhancement is how to deal with these degraded images to meet our need.One of main contents of image processing is image enhancement.Now, there are many methods of image enhancement,but they will more or less bring bad effects when enhancing images.