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Old 21st December 2014, 16:24   #1  |  Link
JClement
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fdecimate & other plugin mods for horrible flicker

I am working on a mod to Fdecimate to improve the handling of videos with horrible flicker. This is due to inheriting a video of an 8mm movie projected on a wall. It not only has horrible flicker, but also some flickering overloaded washed out highlights. It may be possible to get rid of some flicker by decimating duplicate frames with high brightness. This is also an attempt to remove frames with overloaded highlights.

Essentially it has to identify frames with identical detail but different brightness and then decimate preferentially according to brightness. So far I have made some progress to doing this, but it is a work in progress. When released it will also have a free decimate option with no guidance.

This may also make it possible to modify VirtualDub Dflick to identify scene change better.

Another possibility is a mod to VirtualDub Fblender to have it only blend filters for a range of RGB or luminance values. This would also allow special effects such as modifying just a range of colors so you can easily turn blue skies to red for your video simulation of a Mars landscape, or any other perversely creative pursuit.
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Old 21st December 2014, 16:50   #2  |  Link
StainlessS
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FDecimate metrics are bugged: http://forum.doom9.org/showthread.ph...te#post1644680

EDIT: And also see two previous posts.

EDIT: Also, FDecimate just throws away the first frame that it comes across that is within a certain threshold,
not necessarily the best frame to throw away.
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Last edited by StainlessS; 22nd December 2014 at 10:53.
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