CODEWITHSUNDEEP
ffmpegframedetectflashlight
Frank
Frank

Reputation: 21

ffmpeg - how to remove white frames?

We doing videorecording with strobelight and the framerate is 30 fps. If we set the strobe below 30hz we got a black frame in the video. if we set the strobe over 30hz we got a white frame.

I found how to remove the blackframe and duping the the frame before using: 

ffmpeg -i test.avi -vf blackframe=1,metadata=select:key=lavfi.blackframe.pblack:value=0:function=less -vsync cfr -c:a copy out.avi

But i cant find anything to remove the white frame. Is there any filter i can use?

Greetings Frank

Upvotes: 2

Views: 1695

Answers (1)

Gyan
Gyan

Reputation: 93301

Untested, but you can negate the frame, then run your blackframe filtering, then negate it back.

-vf negate,blackframe=..,metadata=..,negate

Upvotes: 1

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