中文说明：小波变换在图像处理中应用于图像分析，图像压缩，图像去噪等。本文就小波变换理论和matlab语言的小波分析工具箱做了简单阐述。
English Description：
Wavelet transform is applied to image analysis, image compression and image denoising in image processing. In this paper, the wavelet transform theory and the wavelet analysis toolbox of MATLAB language are briefly described.