中文说明：此示意程序用DWT实现二维小波变换1.调原始图像矩阵2.进行二维小波分解3.分解结果显示重构源图像及结果显示
English Description：
This program uses DWT to realize two-dimensional wavelet transform. 1. Adjust the original image matrix. 2. Decompose two-dimensional wavelet. 3. Display the result of decomposition and reconstruct the source image