先由原始图像（任选）产生待恢复的图像； 利用二维小波分析对一幅图象作2层小波分解,并在此基础上提取各层的低频信息实现图像的压缩。

分别用逆滤波和维纳滤波恢复上面图像。

-First be the original image (optional) to restore the image to be generated　the use of two-dimensional wavelet analysis of an image for two-layer wavelet decomposition, and on this basis, the low-frequency information extracted layers for image compression. Were used to inverse filtering and Wiener filter to restore the image above.