图像压缩算法的分析与研究本科毕业设计论文.doc

河南理工大学毕业设计（论文）说明书 PAGE PAGE 53 河南理工大学 本科毕业设计 图像压缩算法的分析与研究 摘? 要 随着多媒体技术和通讯技术的不断发展, 多媒体娱乐、信息高速公路等不断对信息数据的存储和传输提出了更高的要求, 也给现有的有限带宽以严峻的考验, 特别是具有庞大数据量的数字图像通信, 更难以传输和存储, 极大地制约了图像通信的发展, 因此图像压缩技术受到了越来越多的关注。图像压缩的目的就是把原来较大的图像用尽量少的字节表示和传输,并且要求复原图像有较好的质量。利用图像压缩, 可以减轻图像存储和传输的负担, 使图像在网络上实现快速传输和实时处理。 本文主要介绍数字图像处理的发展概况，图像压缩处理的原理和特点，对多种压缩编码方法进行描述和比较，详细讨论了Huffman编码的图像压缩处理的原理和应用。 关键词：图像处理,图像压缩,压缩算法,图像编码,霍夫曼编码 Abstract With the developing of multimedia technology and communication technology, multimedia entertainment, information, information highway have kept on data storage and transmission put forward higher requirements, but also to the limited bandwidth available to a severe test, especially with large data amount of digital image communication, more difficult to transport and storage, greatly restricted the development of image communication, image compression techniques are therefore more and more attention. The purpose of image compression is to exhaust the original image less the larger the bytes and transmission, and requires better quality of reconstructed images. Use of image compression, image storage and transmission can reduce the burden of making the network fast image transfer and real-time processing. This paper mainly introduces the development situation of the digital image processing, the principle and feature of image compression processing , and the variety of compression coding method was described and compared, detailedly discussed the principle and application of compression processing based on Huffman Keywords: Image Processing，Image Compression，Compression algorithm，Image Coding，Huf.fman 目录 TOC \o 1-3 \h \z \u 1．数字图像处理概述 h 5 1.1数字图像处理发展概况 h 5 1.2数字图像处理主要研究的内容 h 6 1.3数字图像处理的基本特点 h 7 2．图像压缩 h 8 2.1图像压缩技术概述 h 8 2.2图像数据压缩原理 h 8 2.3．图像压缩编码 h 9 2.3.1霍夫曼编码 h 9 2.3.2行程编码 h 11 2.3.3算术编码 h 11 2.3.4预测编码 h 11 2.3.5变换编码 h 12 2.3.6其他编码 h 12 3 哈夫曼编码的图像压缩 h 14 3.1 需求分析 h 14 3.2 设计流程图 h 14 3.3 哈弗曼树的构造 h 15 3.4