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VC++图象处理源代码,演示程序提供了哈夫曼编码法的压缩和解压缩函数,并实现了对图象 文件的压缩和解压缩-VC image processing source code, a demo program Huffman coding method of compression and decompression functions, and to achieve the right image file compression
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用MFC编写,实现的功能有:
i. 打开256色的BMP格式的图像文件:
ii. 图像的傅立叶变换:
iii.
直方图均衡化:
iv. 图像的中值滤波
v. 图像的边缘检测
vi. 几何变换
vii. 哈夫
曼编码查看:
viii. 直方图查看
ix. 用哈夫曼压缩方法对图像进行压缩并生成压缩文件
另外还有课设论文及重要模块流程图。有一定
的参考价值
-prepared using MFC, the functions are : i.
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利用Huffman编码法做的一个文本文件压缩程序,仅支持英文的文本文档,压缩效率在10%~50%,DOS界面,欢迎讨论。-Huffman coding method used to do a text file compression program, supports only English text files, the compression efficiency of 10% to 50%, DOS interface, welcomed the discussion.
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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-enco
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数据结构课程设计,实现对文本文件的huffman编码和译码-data structure curriculum design, realization of the text file Huffman coding and decoding
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准备一个文件,统计该文件中各种字符的频率,对各字符进行Huffman编码,将该文件翻译成Huffman编码文件,再将Huffman编码文件翻译成源文件。-prepared a document, statistics that document the frequency of various characters, on the characters Huffman coding, the document translated into Huffman coding documents, H
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I ve written some many years ago dynamic Huffman algorithm to compress and decompress data. It is mainly targeted to data with some symbols occuring more often than the rest (e.g. having some data file consisted of 3 different symbols and their total
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本程序提供了哈夫曼编码的压缩和解压缩函数,并实现了图象文件的压缩和解压缩-the procedures provided Huffman coding compression functions, and to achieve the image file compression
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这个是用C写的哈夫曼编码与解码,起中间数据还用文件显示,以便大家观摩-this is written in C Huffman coding and decoding, starting with intermediate data file, so that we watch
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本程序使用C语言进行文件操作,使用哈夫曼算法进行编码压缩-procedures for the use of the C language for file manipulation, the use of Huffman coding compression algorithm
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对文本文件进行huffman编码、解码
读取文本文件,并统计文件中字母个数
建立huffman树
对文件进行huffman编码
对文件进行huffman解码
,Text documents huffman encoding, decoding to read a text file, and the number of statistical documents the establishment of letters of the document tree huffman
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对一篇英文文章,统计各字符出现次数,实现Huffman编码。在Huffman编码后,将编码表和英文文章编码结果保存到文件中,并提供读编码文件生成原文件的功能。-Of an English article, statistics of the number of characters appear, realize Huffman coding. In the Huffman encoded, the encoding table and English article coding result
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根据对二叉树知识的理解,实现对最优二叉树哈夫曼树的构造,遍历,然后实现编码,译码的功能,结果保存到文件中.
输入要进行编码的字符段,统计对字符的出现次数即为权值,根据权值建立哈夫曼树,由哈夫曼树可得到各字符的编码,反过来可得数字译码,保存到文件中
-Based on a binary tree of knowledge of understanding, to achieve the optimal Huffman tree binary tree structure, traverse
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用文件的存储和调用机制实现的哈夫曼编码,对已经经处在的文本文件中出现的字符按照出现的次数进行编码-Document storage and call mechanisms of Huffman coding, have been through in the text file appears in accordance with the emergence of the number of characters encoded
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本解码器类支持普通jpeg文件格式,这也是目前大多数jpeg文件所采用的格式,此格式主要特点是数据精度为8位,采用Huffman编码的普通DCT帧(不支持扩展串行和递进模式及数学编码)。本解码器类的IDCT算法采用三种模式,分别是浮点解码、定点整数解码和定点整数MMX优化解码,您可根据具体情况选择。-The decoder supports the general category jpeg file format, which is most used in jpeg file format
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哈夫曼编码在文件压缩中有其独特一点,它的编码方式特殊。在通信领域可以得到应用。本程序使用C++编写,在VC6.0上调试,完成了文件的读取,文件字符的统计,哈夫曼树的建立,哈夫曼编码的实现,文件转换为哈夫曼编码成为压缩文件以及文件从压缩状态进行解码。-Huffman file compression in a unique point, and its special encoding. In communications applications can be. This procedure
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课程设计:
1.求出在一个n×n的棋盘上,放置n个不能互相捕捉的国际象棋“皇后”的所有布局。
2.设计一个利用哈夫曼算法的编码和译码系统,重复地显示并处理以下项目,直到选择退出为止。
【基本要求】
1) 将权值数据存放在数据文件(文件名为data.txt,位于执行程序的当前目录中)
2) 分别采用动态和静态存储结构
3) 初始化:键盘输入字符集大小n、n个字符和n个权值,建立哈夫曼树;
4) 编码:利用建好的哈夫曼树生成哈夫曼编码;
5) 输出编码;
6)
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建立一个文本文件,统计该文件中各字符频率,对各字符进行huffman编码,将该文件翻译成huffman编码文件,再将huffman编码文件翻译成原文件-The establishment of a text file, the statistics of the file in the character frequency, the characters huffman coding, the file translated into huffman encoded file, and the
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使用huffman编码实现文件压缩与解压缩(Using Huffman coding to implement file compression and decompression)
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霍夫曼编码是一种常见的不等长编码方式,该程序可实现霍夫曼编码和霍夫曼译码。(Huffman coding is a common unequal length encoding method.This file can implement Huffman coding and Hoffman decoding.)
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