说明：  原创代码,采用VHDL实现的64点均值滤波,实验测试过,效果良好,可轻松修改成任意点数均值滤波,采用了多点滑动运算,减小了
(Original code, using VHDL to achieve the 64-point mean filter, experimental testing, the effect is good, can be easily modified to arbitrary point mean filter, the use of multi-point sliding operation, reduce the)