中文说明：用小波变换对图像进行三级分解及求出各个子带系数
English Description：
Wavelet transform is used to decompose the image and calculate the coefficients of each subband
Wavelet transform is used to decompose the image and calculate the coefficients of each subband
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中文说明：用小波变换对图像进行三级分解及求出各个子带系数
English Description：
Wavelet transform is used to decompose the image and calculate the coefficients of each subband