Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have some live action video I am scaling up 200% and then uploading to youtube. Trying to reserve as much quality as possible. Can anyone suggest some good starting settings to use with hqdn3d? Is there a better option than hqdn3d for live action?

Is it normally a good idea to apply some unsharp masking after you denoise a video?

share|improve this question

1 Answer 1

up vote 4 down vote accepted

Upscaling is rather unlikely to help quality, so I suggest you should first consider not upscaling.

hqdn3d will only harm fidelity, but that's more of a theoretical concern if you happen to prefer the way the video looks after being filtered. I usually prefer sort of conservative options like "hqdn3d=4:4:3:3" or similar. If you at all like what that does to your video, you may consider that the first two parameters could be set higher for higher-def videos but should not be raised a whole lot on low-res videos. The last two parameters are temporal filtering, and as you may have already seen, you get an annoying motion-blur like effect if you overdo it.

But ultimately you have to accept that this is all subjective, and each video will be affected to different degrees and in different ways by this filtering.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.