lz77算法原代码，压缩比率20 ~90 .

很麻烦的源码上传，郁闷，什么时候能改变一下，为什么要20个字啊-From a source very troublesome, depressing, when you change, why should the 20 words ah

算术编码方法是将被编码的一则消息或符号串（序列）表示成0和1之间的一个间隔（Interval），即对一串符号直接编码成[0,1]区间上的一个浮点小数。符号序列越长，编码表示它的间隔越小，表示这一间隔所需的位数就越多。信源中的符号序列仍然要根据某种模式生成概率的大小来减少间隔。可能出现的符号概率要比不太可能出现的符号减少范围小，因此，只正加较少的比特位。-Arithmetic coding method is to be a coded message or symbol strings (sequences) that between 0 and 1 into an interval (Interval), that is directly encoded into a string of symbols [0,1] range of a floating-point decimal. The longer the symbol sequence, encoding the smaller the interval that it said that the median of this interval, the more necessary. Source is still the symbolic sequence generated according to a mode to reduce the size of the probability interval. May be less than the probability of the symbols of the symbols may be small to reduce the scope, therefore, are only plus-bit bit less.

也是图象压缩的程序源代码-Is the image compression program source code

vc编写的实现圆形时钟的程序,时钟显示系统时间-vc prepared by the round the clock to achieve the procedure, the clock time display system

这是一个JPEG解码器,里面使用了MMX,SSE等汇编指令集

用c语言编写的哈夫曼压缩解压-prepared by the Huffman compression decompression

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.

“wavelet”目录中存放的是API函数源程序 “wavelet_gui”目录中存放的是JPEG2000应用举例的DELPHI调用 “可执行应用”目录中存放的是笔者编译成功的可执行应用程序- Wavelet directory are stored in source API function wavelet_gui directory stored in JPEG2000 applications are examples of DELPHI calls executable application directory are stored in the success of the author compiled executable applications

用VB实现文件压缩和解压缩，对于初学VB的同志具有参考价值-VB document compression and decompression, for beginners VB comrades reference value

linux系统下实现数据压缩的小波方法，以能量保持率作为标准进行压缩处理。-under the wavelet data compression methods to maintain the rate of energy as a standard compressed.