中文说明：
基于contourlet几何信息的图像去噪程序，该程序包括小波硬阈值方法，contourlet硬阈值方法，小波和循环平移结合的方法，contourlet和循环平移结合的方法，还有本文方法。
English Description：
Image denoising program based on Contourlet geometry information, including wavelet hard threshold method, contourlet hard threshold method, wavelet and cyclic translation combination method, contourlet and cyclic translation method, as well as the method in this paper.