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Main version 2.6
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How can I increase gamma for a portion of a video?
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Topic: How can I increase gamma for a portion of a video? (Read 310 times)
dandv
Newbie
Posts: 2
How can I increase gamma for a portion of a video?
«
on:
December 23, 2017, 02:08:37 AM »
I have a video that gets dark at the end as it gets dark outside. I want to increase the gamma for that portion but Avidemux doesn't let me make the
Mplayer eq2
filter partial.
This is a really basic and common task. Other color filters can be made partial. Can we make this one too?
«
Last Edit: December 23, 2017, 02:18:25 AM by dandv
»
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eumagga0x2a
Hero Member
Posts: 1830
Re: How can I increase gamma for a portion of a video?
«
Reply #1 on:
December 23, 2017, 12:50:20 PM »
Technically, there are two kinds of video filters in Avidemux: filters which don't use caching as filters which do. Filters which like eq2 use caching can't be made partial.
I assume you use Linux
, so building Avidemux from source is trivial. In this case you could apply the attached patch which would allow to make eq2 partial with implications I don't have time to investigate now.
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Jan Gruuthuse
Hero Member
Posts: 5865
Re: How can I increase gamma for a portion of a video?
«
Reply #2 on:
December 23, 2017, 02:02:12 PM »
load video
mark and save part that does not need adjustment (part1)
delete marked part1 from video (delete)
apply the wanted filter over the remaining video
save as part 2
close video
load part 1, append part 2 and save as new video.
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BG Davis
Jr. Member
Posts: 72
Re: How can I increase gamma for a portion of a video?
«
Reply #3 on:
January 03, 2018, 06:46:46 PM »
You can edit portions of a video clip in an older version of Avidemux, v2.5.
Sad to see that this useful function was removed in later versions.
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eumagga0x2a
Hero Member
Posts: 1830
Re: How can I increase gamma for a portion of a video?
«
Reply #4 on:
January 04, 2018, 09:26:51 PM »
I've pushed the patch attached to
http://avidemux.org/smif/index.php/topic,18158.msg82988.html#msg82988
to the git master. The MPlayer eq2 filter should be partializable in nightlies built on 2018-01-05 and later.
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Avidemux
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Main version 2.6
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How can I increase gamma for a portion of a video?