An Introduction to Wavelets

用matlab实现的基于小波变换的图像增强去噪-achieved using Matlab based on wavelet transform image enhancement and denoising

大学期间学数字信号处理课程时写的作业放上来也许对大家有用，里面有FIR IIR，和傅立叶变换，FFT等功能。-I uploaded my project report (written by VC) for the module of signal processing when studied in Univ., The functions on FIR IIR and Fourier Transform etc. have been implemented in it. Hope it is benefit for you.

有两个vc工程文件，分别是lzc编码和解码。算法主要可以对灰度图像进行压缩和解压缩，效果比jpeg要好。其实这就是jpeg2000的原型。-two vc engineering documents were lzc encoding and decoding. This algorithm can be gray image compression, the effect is better than jpeg. This is actually the prototype JPEG2000.

新一代静止图像压缩编码标准JPEG2000概述* 丁贵广 郭宝龙 西安电子科技大学 机电工程学院 西安 710071 guiguangd@263.net 摘要随着多媒体技术应用的不断增加图像压缩技术不仅要求具有较高的压缩性能而且还要求有新的特征来满足一些特殊的要求为此国际标准化组织ISO指定了新一代静止图像压缩标准JPEG2000本文通过对JPEG2000中核心算法EBCOT的详细分析阐述了JPEG2000压缩标准新的特征以及与现有压缩标准相比显示出来的优越性能 关键词JPEG2000小波变换EBCOT彩色图像编码-new generation of static image compression coding standard JPEG2000 outlined* Ding Guang Guo Baolong Xi"an University of Electronic Science and Electrical and Mechanical Engineering College, Xi"an 710071 guiguangd@263.net Abstract multimedia technology with the increasing use of image compression technology not only requires a high compression performance, but also requires new features to meet the special requirements for this ISO designation of a new generation of still image compression standard JPEG2000 Based on the core JPEG2000 algorithm EBCOT the detailed analysis described JPEG2000 compression standard and the new features with the existing compression standard compared to demonstrate the superiority can Keywords

多尺度分析的图象处理技术，是目前比较新的一种处理方法。-multiscale analysis of image processing technology, is a relatively new approach.

是二维图象的小波变换和逆变化.可以直接编译运行和调试-is two-dimensional image inverse wavelet transform and change. Can be directly translated running and debugging

Visual C++小波变换技术与工程实践（小波变换现实分形草）-Visual C wavelet transform technology and engineering practice (wavelet transform reality Fractal Grass)

本文档内有5篇比较经典的小波图象压缩方面的论文,对于小波变换,小波压缩爱好者有极大的帮助-this documentation within five classic comparison of wavelet image compression papers, the wavelet transform, Wavelet compression lovers of great help

it is used to remove noise from images

本程序可以实现利用小波变换对图像和数字信号的进行去噪-This procedure can be achieved using wavelet transform for image and digital signal Denoising