Rytis you can go to effect. Then visual and noise and change the background to white. Then play with the intensity and size. It might give you what you want.
Intel i7 5960X overclock to 4 Ghz 16 GB of ram.
GoPro 4
Canon VIXIA HF G10
Canon EOS Rebel T3
Canon EOS 70D
My Vimeo Channel http://vimeo.com/user3339631/videos