SPIHT

本压缩包涉及工程水文的10多个程序（保证率计算，调度计算，调洪演算，等出力调节等）(This package involves engineering hydrology of more than 10 program (reliability calculation, scheduling calculation, flood regulating calculation, such as the output regulation, etc.))

接收器必须具有某种方法能够知道数据流中字节的起始和结束。在异步通信中，字节边界由起始和停止位指示。在同步通信中，定时机制帮助发送器和接收器处于同步状态。(The receiver must have some way to know the data stream in bytes of the start and end. In asynchronous communication, the byte boundary from the start and stop bit instructions. In synchronous communication, the timing mechanism to help the transmitter and receiver are in sync.)

说明：  一个简单的32位位图压缩算法，基本思想是，扫描像素点，后面有雷同的就记下重复次数。(A simple 32-bit bitmap compression algorithm, the basic idea is to scan pixel, behind identical repetitions on the record.)

有关算术编码对文本压缩的程序在c++环境中实现(about arithmetic compressed)

说明：  文件介绍了x264程序的算法流程表，每个函数的内容详细介绍在里面 (Document describes the algorithm flow chart x264 programs, and detailed description of each function in it)

说明：  c语言环境下的 哈夫曼编码的串行程序(c language environment Huffman serial procedures)

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.

Jepg2000的压缩解压(Jepg2000 compression decompression)

说明：  传统游程编码，并且又对游程编码进行了一定程度的改进。(The traditional run-length coding has improved it to some extent.)

该程序包含两部迭代收缩阈值算法在几个方面的应用，包括图像，1范数和2范数的核心算法。(The program includes two parts of iterative shrinkage threshold algorithm in several aspects, including image, 1 norm and 2 norm core algorithm.)