中文说明：对输入的二维灰值图像，先进行提升Haar小波变换，再用经典的EZW算法对小波系数进行压缩，然后反变换重构原图像。
English Description：
Firstly, lifting Haar wavelet transform is applied to the input two-dimensional gray value image, then the classical EZW algorithm is used to compress the wavelet coefficients, and then the original image is reconstructed by inverse transform.