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View Full Version : What avisynth filter increases contrast intelligently only for low contrast parts?


namus
7th August 2008, 21:10
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!

Adub
7th August 2008, 21:21
hmm...not sure if this is what you are looking for, but have you tried HDRAGC? (http://strony.aster.pl/paviko/hdragc.htm)

namus
7th August 2008, 21:32
hmm...not sure if this is what you are looking for, but have you tried HDRAGC? (http://strony.aster.pl/paviko/hdragc.htm)


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?