这个程序还不完整，希望下了的人可以帮忙可以改一下

霍夫曼编码是可变字长编码(VLC)的一种，是消除编码冗余最常用的方法。 它是Huffman于1952年提出一种编码方法，它的基本原理是频繁使用的数据用较短的代码代替，较少使用的数据用较长的代码代替，每个数据的代码个不相同。有时称之为最佳编码，一般就叫作Huffman编码。下面引证一个定理，该定理保证了按字符出现概率分配码长，可使平均码长最短。-Huffman coding is a variable word length coding (VLC) A is to remove redundant code of the most commonly used methods. It is Huffman in 1952 made a coding method, and its basic tenets are frequently used data with the code instead of a shorter, less use of the data over a longer period instead of the code, the code for each data-not the same. Sometimes referred to as the best coding, the general called on Huffman coding. Below prove a theorem, the theorem guarantees by the characters emerging probability distribution yards long, will enable the shortest average yards long.

运行可执行程序testword.exe，出现菜单主界面，按回车键出现由26个字母组成 的乱序行，这时其中任一字母落下，在键盘上敲入该字母，如果输入正确，字母 消失；按ESC键返回主界面；按空格见暂停；按‘E’退出。-Run the executable program testword.exe, the main interface, the menu that appears, press the Enter key appears composed of 26 letters out of order lines, when any one of the letters fall in the Jianpanshangqiao into the letters, if you type correctly, the letter disappeared Press ESC key to return to the main interface according to space, see the moratorium Press " E" out.

This file contains a new and improved version of the Huffman coder, (June 29. 2001). The name is Huff06.m. There are also some additional files which are helpful when using Matlab for data compression: quantizer, different variants of run-length-encoding and end-of-block coding in Mat2Vec, and a program which do JPEG-like entropy coding. A complete compression example is shown in TestMat2Vec.m. This file is all you need for Huffman coding in MatLab.-This file contains a new and improved version of on of the Huffman coder, (June 29. 2001). The name is Huff06.m. There are also some additional files which are helpful wh en using Matlab for data compression : quantizer. different variants of run-length-encoding an d end-of-block coding in Mat2Vec. and a program which do JPEG-like entropy coding . A complete compression example is shown in Tes tMat2Vec.m. This file is all you need for Huffma n coding in MatLab.

硬币找钱 硬币找钱 硬币找钱 硬币找钱 硬币找钱 硬币找钱 硬币找钱 硬币找钱 硬币找钱 硬币找钱 硬币找钱 硬币找钱 -Coin coin find money find money find money coins coin coin find money find money find money coins coin coin find money find money find money coins coin coin find money find money find money coins coin coin find money find money find money coins coin coin find money find money find money coins coin coin find money find money find money coins coin coin find money find money find money coins

外星人，很简单的动画-aliens, a very simple animation

本程序采用了最简单的方块编码对512×512的lena图像进行了编码.运行程序后可以看出，方块取得越大，图像编码后失真越大。-This procedure uses the most simple code box 512 × 512 on the lena image coding. After running the program we can see that the box to obtain the greater the greater the distortion image is encoded.

东南大学版本，图像压缩ＶＩＳＵＡＬ　Ｃ＋＋源代码，用于二维图像压缩．-Southeast University, version, image compression VISUAL C source code for two-dimensional image compression.

fdi-FDI

很好用的HPHOTO数据压缩工具包，适用于字符压缩，对图像压缩效果不好。-Good data compression used in HPHOTO toolkit for character compression, image compression do not work.

LZW数据压缩算法-LZW data compression algorithm