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Old 7th August 2008, 20:10   #1  |  Link
namus
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What avisynth filter increases contrast intelligently only for low contrast parts?

Hi,

I have a video with some parts being dark with low contrast, while some other parts have reasonably good contrast with bright areas.

If I use filters like Tweak to increase contrast of the low contrast regions, naturally the ones with high contrast gets washed out in the brighter spots.

I need suggestions of Avisynth filters that can intelligently increase contrast where it is needed.

Thanks!
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Old 7th August 2008, 20:21   #2  |  Link
Adub
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hmm...not sure if this is what you are looking for, but have you tried HDRAGC?
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Old 7th August 2008, 20:32   #3  |  Link
namus
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Quote:
Originally Posted by Merlin7777 View Post
hmm...not sure if this is what you are looking for, but have you tried HDRAGC?

Thanks for your response. Yes, I got the suggestion from somebody and just started to play around with it with some arbitrary parameters. Not yet satisfied, since I need to learn how to tweak the parameters better. It's a powerful tool, but needs time to control and apply successfully!

Is there any other out of the box filters to be tried with just the default options?
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Old 16th September 2011, 20:58   #4  |  Link
thrakk
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bump.

I'm also looking for the best way to "intelligently darken" my video. Mainly by making the darkest areas a little darker without effecting less dark, neutral and light hues.
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Old 22nd September 2011, 08:57   #5  |  Link
minaust
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Quote:
Originally Posted by Adub View Post
hmm...not sure if this is what you are looking for, but have you tried HDRAGC?
It's exactly what I was looking for.
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