压缩和解压缩功能LZW编码方法及实现…

这是一个基于matlab的图像匹配算法，通过先后两帧中相同的部位，在前一帧中搜索协方差最大的匹配点。-This is a matlab-based image matching algorithm has the same two parts, a former search the largest covariance matching points.

静态的哈夫曼编码，从file.txt文件中读取字符，统计，并编码，输出到huffman-u.txt中-Static Huffman coding, the document read from file.txt characters, statistics, and coding, the output of the huffman-u.txt

UM联信 2009 客户端 注：主程序已经被脱壳-UM 2009 client Note: The main program has been unpacked.

ROI的ezw和huffman混合压缩编码，对感兴趣区域采用了huffman无损压缩，非感兴趣区调用ezw压缩-ROI ezw mixed and Huffman coding. the region of interest using a lossless compression Huffman, non-interest area called compression ezw

【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.

Please, use this MATLAB code as environment for all projects in the ME area (Worked with .mat format)

中考信息管理系统2002-entrance Information Management System 2002

好的压缩工具，主要对MP3再压缩，给大家分享-good compression tools, mainly for MP3 compression again, to share

DES算法完整源码与调用方法-DES algorithm source code integrity and call methods

algorithm for seed string