本文是关于基于小波变换的图像压缩算法研究，首先介绍了图像压缩和小波变换理论，然后提出了改进的SPIHT算法和EZW算法。-This paper is based on the wavelet transform image compression algorithm, First of image compression and wavelet transform theory, and then proposed a plan to improve the SPIHT and EZW algo