zip

实现SPIHT算法!!!!使用MATLAB 实现程序(SPIHT algorithm realize!!!! Realize the use of MATLAB procedures)

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.)

压缩与解压缩类；压缩文件至.zip包内，增加文件至.zip包内，及解压缩相关操作。(zip and unzip。)

bmp转换为jpeg,jpeg压缩的源代码 程序用vc实现了bmp图片转换成jpeg图片(converted to jpeg bmp, jpeg compression source code procedures used vc realized bmp images converted into jpeg photos)

MATLAB图像压缩JPEG编解码算法,多种参数对比，代码详细实现JPEG编解码标准算法(MATLAB codec JPEG image compression algorithm, multi-parameter comparison, the code in detail to achieve the standard JPEG codec algorithm)

Huffman 编码是第一个实用的无损压缩编码技术，经过了多年的不断改进，已经形成了系统的理论和方法。目前主要有两种类型的Huffman编码方式，即静态Huffman编码和动态Huffman编码。Huffman编码有着广泛的应用，但是不再是压缩算法的全部，而是被当作最终的编码方法。(Huffman coding is the first practical lossless compression coding technology, after years of continuous improvement, has formed a system of theories and methods. There are currently two types of Huffman encoding, namely, static and dynamic Huffman coding Huffman coding. Huffman coding has been widely used, but the compression algorithm is no longer all, but rather be treated as the final coding.)

zip压缩源代码，附有整个工程，保证能用，可应用于文件压缩，内存压缩(zip compressed source code, with the whole project, and ensure that use, can be applied to file compression, memory compression)

bnpts点云文件 进过压缩处理 大约100000个点(bnpts)

使用哈弗曼算法，对文件进行压缩然后再进行解压。(Use the Huffman algorithm to compress the file and then decompress.)

说明：  图像压缩的MATLAB算法之JEPG，希望对大家有用，欢迎下载。(MATLAB algorithm for image compression of JEPG, hope useful for everyone, welcome to download.)