lzw

Many crc routine in C

使用哈弗曼算法，对文件进行压缩然后再进行解压。(Use the Huffman algorithm to compress the file and then decompress.)

二值图像 游程编码 自己测试过。。。绝对可用(Binary image run-length coding themselves tested. . . Definitely can be used)

说明：  一篇关于压缩感知的经典文章，压缩感知（Compressed sensing，简称CS，也称为Compressive sampling)理论异于近代奈奎斯特采样定理，它指出：利用随机观测矩阵可以把一个稀疏或可压缩的高维信号投影到低维空间上，然后再利用这些少量的投影通过解一个优化问题就可以以高概率重构原始稀疏信号，并且证明了这样的随机投影包含了原始稀疏信号的足够信息。(A classic article on compressed sensing, compressive sensing (Compressed sensing, referred to as CS, also known as Compressive sampling) different from the modern theory of the Nyquist sampling theorem, which states: the use of a random measurement matrix can be sparse or compressible high-dimensional signal projected to low dimensional space, and then use a small amount of projection by solving an optimization problem to be sparse with high probability to reconstruct the original signal, and prove that random projection of the original sparse signal contains enough information.)

霍夫曼编解码matlab程序，包含熵的计算。(Hoffman codec Matlab procedures, including the calculation of entropy.)

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)

jepg压缩的matlab代码，采用哈夫曼编码，dct变换(jepg compression Matlab code, using Huffman coding, transform Extra)

说明：  java对GZIP的压缩格式提供了直接支持，可以方便的实现GZIP压缩与解压(right GZIP compression format provides direct support to facilitate the realization of GZIP Compression and Decompression)

哈夫曼文本压缩器，两个功能压缩文本文件和解压二进制文件。 内容为源代码，用编译器把源代码运行一遍，把需要压缩的txt文件放到和源代码同一个目录下，压缩名称输入 **.txt 压缩后的名称一定要写二进制格式的 例如 **.dat 只能解压用这个程序压缩后的文件。。 解压名 写 **.dat 解压后名称 **.txt(Huffman text compression, two text files compression and decompression functions binaries)

Compress alghoritm LZ78