pso

本压缩文件包含利用LUT（查找表）进行MODIS气溶胶反演的系统、源代码及说明文档 源代码为idl的pro文件,易于学习查看 还附赠了6s大气传输模型用以生成查找表（LUT）之用 (Modis 6s.)

source MainALI360X decompress frimwer

混沌控制、混沌同步仿真程序混沌控制、混沌同步仿真程序(Chaos control, chaos synchronization simulation program)

Codes". Huffman coding uses a specific method for choosing the representation for each symbol, resulting in a prefix code (sometimes called "prefix-free codes") (that is, the bit string representing some particular symbol is never a prefix of the bit string representing any other symbol) that expresses the most common characters using shorter strings of bits than are used for less common source symbols. Huffman was able to design the most efficient compression method of this type: no other mapping of individual source symbols to unique strings of bits will produce a smaller average output size when the actual symbol frequencies agree with those used to create the code. A method was later found to do this in linear time if input probabilities (also known as weights) are sorted.

哈夫曼编码译码系统，设置发送者和接受者两个功能， 发送者的功能包括： ①输入待传送的字符信息； ②统计字符信息中出现的字符种类数和各字符出现的次数（频率）； ②根据字符的种类数和各自出现的次数建立哈夫曼树； ③利用以上哈夫曼树求出各字符的哈夫曼编码； ④将字符信息转换成对应的编码信息进行传送。 接受者的功能包括： ①接收发送者传送来的编码信息； ②利用上述哈夫曼树对编码信息进行翻译，即将编码信息还原成发送前的字符信息。 (Huffman decoding system, set the sender and the recipient of two functions, the sender' s features include: (1) input to be transmitted character information ② statistical character information, the number of types of characters and characters the number of occurrences (frequency create a Huffman tree) ② According to the number of types of characters and their respective number of occurrences ③ use the Huffman tree to find the characters Huffman coding ④ character information into the corresponding coding information for delivery. The recipient of the features include: (1) to receive the coded information to the sender transmission ② above Huffman tree coded information to be translated, is about to coded information to restore the character information before sending.)

一些MPEG图象处理中图象压缩解压的MATLAB源码(Some MPEG image processing in image compression decompression MATLAB source code)

基于小波的SPIHT编码，没有用算法编码。是matlab程序(Wavelet-based SPIHT coding algorithm for encoding to no avail. Is matlab program)

继 Discrete Cosine Transform: Algorithms, Advantages, Applications (K. R. Rao and P. Yip) 之后的一本关于离散余弦变换(DCT)的快速实现算法的最新专著. 本书第五章“Integer Discrete Cosine/Sine Transforms”关于DCT整数近似实现写的非常详细和精彩, 很方便大家编程实现. 值得一提的是本书的第一作者Vladimir Britanak 一直在从事DCT, 尤其是改进的离散余弦变换(MDCT)的快速算法的研究.(This book, which is written very carefully, is a new monograph of Discrete Cosine Transform (DCT).The fifth chapter about the Integer Discrete Cosine/Sine Transforms is especially wonderful. )

哈夫曼文本压缩器，两个功能压缩文本文件和解压二进制文件。 内容为源代码，用编译器把源代码运行一遍，把需要压缩的txt文件放到和源代码同一个目录下，压缩名称输入 **.txt 压缩后的名称一定要写二进制格式的 例如 **.dat 只能解压用这个程序压缩后的文件。。 解压名 写 **.dat 解压后名称 **.txt(Huffman text compression, two text files compression and decompression functions binaries)

java implementation of graph traversal