此代码，可以完成matlab下的小波软阈值图像去噪，可以做不同阈值下的图像去噪，并通过峰值信噪比psnr的比对来说明阈值选取的方法-Wavelet threshold denoising compared soft threshold and hard threshold and the current method of calculating the various thresholds and thresholds approach the performance of function,

两种阈值基于小波变换的阈值方法的比较和介绍，并给出了详细的说明-Two thresholds based on wavelet transform thresholding methods and the introduction and give a detailed descr iption of