本程序首先对图像进行进行压缩，通过计算灰度共现矩阵，最后对图像进行小波变换-The program first compresses the image, by calculating the gray level co-occurrence matrix, and finally the image wavelet transform

get wavelet coefficient of a gray image till infinite level (by changing the i in source code). default is 4.-get wavelet coefficient of a gray image till infinite level (by changing the i in source code). default is 4.

图像三级小波变换，将灰度图像进行三级小波分解成高频子带和低频子带等。- Three level wavelet transform, the gray level image of the three wavelet decomposition into high-frequency sub bands and low frequency sub bands, etc..