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目
2
录
1前言1图像增强概述321图像噪声3211图像噪声的产生3212图像噪声分类4213图像噪声特点422图像增强处理分类5221空域增强法6222频域增强法7223图像增强效果评价723空间域变换增强方法8231灰度变换9232直方图变换13233图像平滑与锐化1624图像增强技术现状与应用213频域滤波器相关理论和设计方法2431低通滤波器2432高通滤波器2633带通滤波器和带阻滤波器2634同态滤波2735小波滤波27351小波去噪原理28352小波去噪算法r