按键扫描驱动程序 写的还不错，希望大家看看阿！第一次上这个网，才知道这个网好好啊！...

比较简单的行程编码的小程序-relatively simple trip to the small coding procedures

Base64 encode decode.

采用小波零树的EZW压缩编码算法，matlab实现代码-This code adopted the zero tree to fulfill the algorithm in matlab.

USQ压缩工具, 源码-USQ compression tools, source

压缩和解压文件，是一个好的解压缩工具，还是一个比较好的系统工具。-It s a good tool for compression and decompression,besides it s also a good system tool!

霍夫曼编码程序 对给定的概率 生成霍夫曼编码 希望大家给点意见-Huffman encoding procedure to generate the probability of a given Huffman code to the point I hope everyone

【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.

把信息写到自身的Exe文件中,并能读取，可用它进行一些软件的加密和保护-may write information into the EXE file itself and also can read. It may be used in software protection and encription.

The file is used to show the number on the led

使用matlab开发的jpeg工具，其中没有使用matlab中包含的字母进行预测，量化都是自己写的，为lena做压缩，但最后没有做熵的过程