how do surface blur to a video using FFMPEG common line?

enter image description here enter image description here

like above two image , it is one frame of the video ,

origin video:https://youtu.be/Qmoc7VyX2f8

surface blur video:https://youtu.be/zbw1XVXjn4c

Is there a way to use FFMPEG common line do that , thank you very much