Once or twice I’ve used the strong preset and hit it with Medium UnSharp preset. Medium preset for something that is VGA resolution taken with a low quality sensor. Light or Ultralight preset might be OK from a “good” DVD source.
I haven’t played with any of the tunes to see. I’ve looked at ffmpeg CLI options and see a lot of options for nlmeans. It can queue jobs like Shotcut, so let it run over night. I’ve run some DVD sources (720x480) through handbrake with the same codec and filters and get >20 fps. Handbrake will encode x265, NLMeans Medium preset, UnSharp Light preset at >100 fps on a 5-year old 4-core computer. This source was probably a Sony Mavica compact camera from the early 2000s.
Speaking of which, have you happened to use nlmeans on GoPro footage? Did you find any robust general settings? I haven’t tested this yet but sure sounds useful. I don’t know if you would be a fan of the extra work, but it could get you a fast nlmeans today rather than wait and hope for an update. If nlmeans was already done on your sources (intermediates), your previews and final export could be faster. If you’re like me and make several small test exports to make sure the project looks good before rendering the whole thing, then each test will have to re-compute nlmeans every time. If all three filters are available in ffmpeg, would that make implementing nlmeans (or hqdn3d) easier?įrom what I see, nlmeans can be very computationally heavy (read: slow). Further down the thread, another poster gives a ffmpeg CLI example using both hqdn3d or nlmeans. The OP implies it’s using smartblur from ffmpeg. Working examples of Msharpen in Avidemux and Unsharp and Lapsharp in Handbrake get better detail without amplifying the noise. Sharpen filter is kind of the opposite issue – it amplifies both detail and noise. I moved my current video project over to Shotcut because I can’t do a decent white balance or color grading in Avidemux. I’ve had good luck removing noise with Handbrake (nlmeans, but hqdn3d also available) and Avidemux (hqdn3d only – doesn’t keep as much detail as nlmeans). To keep the detail, I’m not getting enough noise reduction. The output looks like Vaseline-smeared lens softness or ‘70s porn.
Any chance of the developers adding hqdn3d or nlmeans video denoise filters? I’m attempting a video restoration and am underwhelmed with the Reduce Noise filter.
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