中文说明：CONTOURLET去噪。添加了高斯噪声很好的实现了图像的多尺度分解下的去噪与重建。实现了多尺度分解的子带去噪。
English Description：
Contourlet denoising. Gaussian noise is added to achieve the image denoising and reconstruction under multi-scale decomposition. The sub-band denoising of multi-scale decomposition is realized.