OOMP

EZW的matlab程序 基于小波变换对图像进行压缩编码的研究(EZW the matlab procedure based on wavelet transform image coding research)

说明：  这是相关编码的标准和实现，是密码学的和数据压缩的基础。(This is the relevant coding standards and implementation, is cryptography and data compression basis.)

说明：  A Visual Cryptography Based Watermark Technology for Individual

设电文字符集D及各字符出现的概率F如下： D={a，b，c，d，e，f，g，h}（字符数n=8） F={5，29，7，8，14，23，3，11}( ) 编写完成下列功能的程序： ①构造关于F的Huffman树； ②求出并打印D总各字符的Huffman编码。 程序结构： 类型说明； 构造Huffman树的函数：Huffman_tree(H[m+1])； 求Huffman编码的函数：Huffman_code(code[n+1])； main() { 变量说明； 输入字符集D及频率F； 调用Huffman_tree(H)； 调用Huffman_code(code)； 打印编码； Y 继续？ N 停止 }

在分布式压缩感知中的一种重构算法，联合向前正交追踪算法。(In a distributed compressed sensing reconstruction algorithm, combined forward orthogonal tracking algorithms.)

说明：  lzw压缩算法，可以实现对图像的lzw压缩，容易理解(LZW compression algorithm can realize LZW compression of image, easy to understand)

OMP,很好的OMP程序，应用于压缩感知中的。与以前的程序有点不同(OMP, good OMP program, applied to the compression of perception. Is a little different with previous program)

利用LZW的压缩算法实现文件的压缩与解压缩。用c++和MFC实现，代码简洁，实现简单，可用(LZW compression algorithm using the file compression and decompression.)

This function quickly finds local peaks or valleys (local extrema) in a noisy vector using a user defined magnitude threshold to determine if each peak is significantly larger (or smaller) than the data around it. The problem with the strictly derivative based peak finding algorithms is that if the signal is noisy many spurious peaks are found.

说明：  该程序包含两部迭代收缩阈值算法在几个方面的应用，包括图像，1范数和2范数的核心算法。(The program includes two parts of iterative shrinkage threshold algorithm in several aspects, including image, 1 norm and 2 norm core algorithm.)