中文说明：应用背景这是frequensy LOWW NISE影响图像可以更好的图像滤波关键技术低通滤波器的图像处理技术，得到低通图像
English Description：
Application backgroundimages that are affected of loww frequensy nise can be filtered for better imagesKey Technologyimage processing technique to low pass a filter and get the low pass resultant image