小波压缩解压演示

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

小波变换，D4尺度函数和小波函数图形绘制-Wavelet transform, D4 scaling function and wavelet function Rendering

用matlab实现小波分解与重构的几个程序的源代码。-using Matlab achieve wavelet decomposition and reconstruction of several programs at the source code.

小波分析221-wavelet analysis 221

提供两种常用滤波方法的VC源程序，已经运行通过。-offers two commonly used methods of filtering source VC has been running through.

基于小波变换的盲水印技术- Based on wavelet transformation blind watermark technology

基于matlab的Hilbert-Huang变换完版程序-based on Matlab Hilbert-Huang Transform End version of procedures

实现了方波、正弦波、三角波的输出，同时在LCD模块中用状态机的方法实现LCD的对应显示：当输出正弦波，LCD显示“SIN”；当输出方波，LCD显示“REC”；当输出三角波，显示“TRI”；复位和其它位置波形显示“UNI”。-Realize a square wave, sine wave, triangle wave output, while in the LCD module using the state machine approach to achieve the corresponding LCD display: When the output sine wave, LCD display

包括两个例子：一个演示一维小波变换，另一个演示二维小波变换。-Including two examples: a demonstration of one-dimensional wavelet transform, another demonstration of two-dimensional wavelet transform.

9/7 二维整数小波变换，可以实现图像的无损恢复。-9/7 two-dimensional integer wavelet transform, you can realize non-destructive restoration of images.