总结分析现有的题目相关图像压缩算法；对现有的主要图像压缩关键算法进行仿真实现，给出各种算法的优缺点和适用范围；选定本毕业设计采用方案，编出基于DCT变换的图像压缩仿真设计程序-analysis of topics related to the existing image compression algorithm; of the existing main key image compression algorithm simulation realized, given the advantages and disadvantages of each method and the scope of application; selected the design of the use of the program graduation, came up with DCT-based image compression simulation design process