小波变换在图像编码中的应用.pdfVIP

小波变换在图像编码中的应用 摘 要 小波分析是在现代调和分析的基础上发展起来的一门新兴学科，其基础理论知 识涉及到泛函分析、傅立叶分析、信号与系统、数字信号处理等诸方面，具有理论 深刻和应用十分广泛的双重意义。 因此，本文以《小波变换在图像编码中的应用》为题作为研究。本文主要对小 波变换在图像压缩中的应用作了介绍，应用小波分析进行图像压缩时，在理论上， 可以获得任意压缩比的压缩图像，且实现起来也较为简单。而利用小波包分析进行 图像压缩时，随着所选用的分解小波、分解层次和量化阈值的不同所得结果不同， 且实现起来也很简单。本文同时涉及到了一些小波变换的基本知识以及MATLAB6.5 语言的基本应用。 关键词：小波分析，图像压缩，小波变换，MATLAB Ⅰ 小波变换在图像编码中的应用 ABSTRACT Wavelet Analysis is a new developing discipline developed on the basis of the thing that is mediate and analyse modernly, its basic theory knowledge involve functional analysis, Fourier analysis, signal and system , digital signal disposal and so on, it has double meanings profound theory and extensiv using 。 Therefor, this paper is studied to write the title as the wavelet transform the application in the picture code . This paper make a main introduction about the application of picture compressing in wavelet transform . While using the wavelet analysis to resolve and compress the picture , in theory , can obtain the compression picture of the wanton compression ratio , and it is comparatively simple to realize. Utilize light wave is it is it carry on picture when compressing , resolve light wave , resolve level and quantize different result different income of threshold value with select for use to analyse to wrap up, and it is very simple to realize. at the same time the paper involved the basic information in wavelet transform and the using in MATLAB6.5 language. Keyword: wavelet analysis, image compression, wavelet t