用db1 小波对一个图像进行二维小波变换-db1

用db4 小波对一幅图像进行二维2 尺度分解后􀈆 在不同方向上获得其重构图像。-The image is reconstructed in two directions by using db4 wavelet to decompose an image in two directions.

采用了小波去噪的思想，可实现对二维数据的聚类，对于初学matlab的同学会有帮助。- Using wavelet denoising thought, Can realize the two-dimensional data clustering, Matlab for beginner students will help.