[FFmpeg-user] Best place for despill filter?
astroelectronic at t-online.de
Mon Nov 16 13:41:15 EET 2020
Am 16.11.2020 um 12:22 schrieb Paul B Mahol:
> On Mon, Nov 16, 2020 at 12:13 PM Michael Koch <astroelectronic at t-online.de>
>> When I overlay a bluescreen foreground video over a background video,
>> which is the best place for the despill filter? (a) before colorkey or
>> (b) after colorkey or (c) after overlay?
>> I found here an example for (c) but I doubt that this makes sense:
> Why do you doubt that it does make sense?
I doubt that (c) is the right place because at position (c) the despill
filter also affects the background video, which surely doesn't have any
contamination from the bluescreen.
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