本程序作用是首先载入图像信号,使用小波变换,比较显示不同阈值下的重构图像及相关信息，即小波变换在不同阈值下重构的测试演示程序 -This role is to first load the program image signal, using wavelet transform, comparison shows that different thresholds of the reconstructed image and related information, that is a different threshold in the wavelet transform reconstruction of the test under the demonstration program