http://neuron2.net/hotspot/hotspot.html
So I just fixed a home-made video that was shot with a modern camera with smudges around the perimeter, concentrated in the corners -- probably due to the owner wiping the lens clean with a napkin/rag and pushing all the crap to the corners.
It isn't really visible until deshaking. I fixed it with several applications of the hotspot filter for VDub but it was inconvenient to work with and didn't really fix it perfectly because I had to create a manual mask but it was good enough.
What do you gurus use?
In severe cases (like in scenes in Blair Witch project shot with a flashlight-equipped camera in the dark) I would blur all the frames with a high radius then subtract the normal frames with the blur but I hate doing this because it flattens the intensity and makes everything look unnatural. Correcting the luma would correct it for one thing (human skin) then screw it up for another (rivers, skies, grass).
So I just fixed a home-made video that was shot with a modern camera with smudges around the perimeter, concentrated in the corners -- probably due to the owner wiping the lens clean with a napkin/rag and pushing all the crap to the corners.
It isn't really visible until deshaking. I fixed it with several applications of the hotspot filter for VDub but it was inconvenient to work with and didn't really fix it perfectly because I had to create a manual mask but it was good enough.
What do you gurus use?
In severe cases (like in scenes in Blair Witch project shot with a flashlight-equipped camera in the dark) I would blur all the frames with a high radius then subtract the normal frames with the blur but I hate doing this because it flattens the intensity and makes everything look unnatural. Correcting the luma would correct it for one thing (human skin) then screw it up for another (rivers, skies, grass).