中文说明：
该程序是方向滤波器工具包，其中有很多现成的滤波器，及上下采样程序。可直接调用。
English Description：
The program is a directional filter toolkit, which has many ready-made filters and up and down sampling programs. Can be called directly
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中文说明：
该程序是方向滤波器工具包，其中有很多现成的滤波器，及上下采样程序。可直接调用。
English Description：
The program is a directional filter toolkit, which has many ready-made filters and up and down sampling programs. Can be called directly