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windows gzip source code

Wavelet_OMP compressive sensing -Wavelet_OMP compressive sensing Wavelet

对数据进行一些流方面的操作-some of the data flow in operation

图像压缩的几个MATLAB算法：分块编码、高斯金字塔、离散余弦变换、单值分解。-Image Compression Algorithm several MATLAB : Block Coding, Gaussian pyramid, discrete cosine transform, singular value decomposition.

【文本与二值图像的游程】1. 文本游程压缩的原理 对重复字段采用3符号标识法：(1) 重复提示符,比如@,#等；(2) 游程长度参数或重复次数,若用一个字节表示,最大长度可为255个重复字；(3) 重复字符。以上三部分合称为重复因子。可见要获得压缩效益，重复字符应在3个以上。2. 图像游程压缩的原理 对于二值图像，原始数据为零一矩阵，压缩时逐行处理该矩阵：(1) 连续n个1，表示为+n；(2) 连续n个0，表示为-n。-text and binary image-- an outbound trip. Yu Cheng text compression principle on repeated field using three symbols logo Act : (a) repeat prompt, such as @,#, etc.; (2) Run-length parameters, or the number of repeat, if using a byte, the largest the length of 255 to repeat the word; (3) repeat characters. More than three as part of a repeat factor. Visibility to gain compression efficiency, duplication of characters in three more. 2. Run-image compression for the principle of two binary images, a zero original data matrix, progressive compression deal with the matrix : (1) n a row, n; (2) consecutive n 0, expressed as-n.

Unix系统下，小波包变换的实现例子，当然，稍作改动也可用于windows系统下。-uninx system,wavelet transform example,but,you can transplant it to window with little modification.

GPS定位数据压缩算法的设计与实现 文章作者：杨宏业 张 跃 为了解决嵌入式GPS车载系统存储空间小、GPS定位数据量大的矛盾，根据GPS定位数据的特 点，提出了专用于GPS定全数据压缩的改进型半字节压缩算法。-the design and implementation of GPS locaton data compression algrithm.author:yanghongye,zhangyao.solve the problem of gps car-carring system with little memory ,while heavy dataload.according gps data s characteristic ,put forward gps-oriented data compression,improved half byte compression algrithm.

Averlogic AL576芯片MPEG4压缩示例源程序，可用于AV576 MPEG4压缩解压程序开发-Averlogic AL576 chip MPEG4 compression sample source code that can be used AV576 MPEG4 compression decompression program development

整理的JPEG的编码器，全员源码，非常适合初学者，搞清DCT、Huffman，jpeg 语法等。-finishing JPEG encoder, the full source code, are very suitable for beginners, get DCT, Huffman, jpeg syntax, and so on.

用C语言实现哈夫曼编码压缩的逆过程对于掌握数据压缩原理有重要的积淀作用-C language Huffman Coding for the inverse process of master data compression theory has important role in the sediment