图片的jpeg压缩，包括dct，行程编码，huffman编码-Jpeg image compression, including the dct, stroke coding, huffman coding

给予matlab的JPEG压缩程序，包含原始压缩图片，程序对灰度bmp图片进行JEPG编码，压缩成以0101形式的编码。JPEG编码先把图象色彩RBG变成亮度Y和色度Cr、Cb，它利用人的视觉对色度不敏感的特点，减少一部分色度数据，以达到压缩。 JPEG采取多种编码方式，包含有行程编码(Run Length Coding)和哈夫曼(Huffman)编码，有很高的压缩比。在编码前，先对数据进行分块，离散余弦变换（DCT）及量化，保留能量大的低频信号，丢弃高频信号以达到压缩。-Given to th

图片的压缩和编码解码程序，含多种方法，包括哈弗曼编码，行程编码，lzw编码和jpeg编码-Image compression and encoding and decoding process, including a variety of methods, including Huffman coding, run length coding, lzw encoding and jpeg encoding

行程编码又名游程编码，是无损压缩的一种，本文件用于图像压缩及解压，压缩前后图像完全一样(Run length coding, also known as run length coding, is one of lossless compression. This file is used for image compression and decompression. The image is exactly the same before and after compression)