利用小波变换进行图像边缘提取，用matlab语言编写实现。edgedetect_basedonWavelet.m...

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

包括一次行、列变换，一层，二层，三层小波变换，低通，高通滤波，图像复原，增强，融合-including a trip out transform, layer, Layer wavelet transform, low-pass and high-pass filtering, image restoration, enhancement, integration

此程序用提升法实现第二代小波变换,采用时域实现,步骤先列后行-This procedure used to enhance law to achieve the second-generation wavelet transform, using time-domain realization of the first steps out later

这是对图像进行小波变换的源代码，使用者直接嵌入自己的代码中就可以了-This is an image wavelet transform source code, the user directly embed their own code can be a

尺度函数和小波函数的生成程序-scaling function and wavelet function of generating program

用vc6.0开发出一小波滤波的程序。内容包括仿真数据生成，文本数据读取，滤波器系数构造，小波分解与重构，小波阈值及阈值函数选择，小波降噪。-vc6.0 developed using a wavelet filter procedures. Include simulation data generation, text to read data, filter coefficients structure, wavelet decomposition and reconstruction. Wavelet threshold and threshold function selection, wavelet denoising.

applies soft-threshold t to all elements of x and computes SURE

its watermarking algo using dwt technique

基于小波分析的噪声滤波程序。小波去噪源程序。-Wavelet-based noise filtering procedures

image noise reduction by level dependent thresholding