二维离散小波变换，实现一幅图的分解与重构。恢复原图-Two-dimensional discrete wavelet transform, the realization of a diagram of the decomposition and reconstruction. To restore image

根据对所输入的png格式的真彩图像、小波类型（db9或haar）和相应的阈值进行了三级非标准小波harr或db9的分解和重构，从而达到了对原图像的压缩处理的 -Entered based on the true color of the png format images, wavelet type (db9 or haar) and the corresponding threshold for the three non-standard or harr wavelet decompos