How to timelapse on camtasia 3
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filter_complex "format=yuva420p,colorchannelmixer=aa=0.5 \ So I have spent an hour figuring out the arcane syntax of ffmpeg and tried to replicate the above steps: $ ffmpeg -i FLICKER.mov -itsoffset 0.1 -i FLICKER.mov \ my quick trick fix is simply duplicating layers, shifting top layer over by a frame and adding 50% opacity to it. I have found a 'quick tip' on Philip Bloom's blog that says: I'm looking for a command-line/open source solution (hence, ffmpeg) because my video editor is pretty basic (iMovie) and will not allow me to do tricks like shifting and blending footage.
How to timelapse on camtasia 3 how to#
I have found some obscure reference to other ffmpeg filters like hqdn3d but the defaults did not work and I don't really understand how to play with the parameters and how to relate them to my specific case. I have tried different ffmpeg filters but none did work: deflicker for example is made specifically to remove frame-by-frame luminance changes (e.g., what happens in timelapse videos) but not to fix the banding that I see due to using a shutter speed not in sync with the frequency of the AC feeding the light bulb. Flicker occurs - obviously I should have used 1/25s or 1/50s but I didn't, and want to save the footage.
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I have video footage shot at shutter speeds of 1/30s under artificial light here in Europe where the AC is 50Hz.