摘要
概述了小波分解与重构即小波分析的数学理论基础,简要介绍了haar和db3两种常用小波的结构,在matlab环境实现了用这两种小波对灰度图像的分解与重构,并对结果作了简要分析与讨论。
The paper first summarizes the mathematic principle of wavelets,and introduces the structure of wavelets about Haar and Db3 .Then it implementes the decomposition and reconstruction of two dimensional image based on wavelets in Matlab. Finally it analyzes and discusses the results of the experiment.
关键词
小波
HAAR
Db3
图像分解
图像重构
图像压缩
wavelets
Haar
Db3
image decomposition
image reconstruction
image compression
