This forum uses cookies
This forum makes use of cookies to store your login information if you are registered, and your last visit if you are not. Cookies are small text documents stored on your computer; the cookies set by this forum can only be used on this website and pose no security risk. Cookies on this forum also track the specific topics you have read and when you last read them. Please confirm whether you accept or reject these cookies being set.

A cookie will be stored in your browser regardless of choice to prevent you being asked this question again. You will be able to change your cookie settings at any time using the link in the footer.

filtering suggestions
#1
Hi, what VapourSynth filters and settings should I use to mainly get rid of the dropouts, chroma noise, and what would be the best sharpening filter for this source?

https://we.tl/t-78Nj7s2Xgl
Reply
#2
Away from PC till Monday evening, will look at it then.
----
Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.
Reply
#3
Sure, take your time!
Reply
#4
No clue, what the 'best' is.
How I would approach such a source:
  • throw Retinex at it (while moving it to the end of the filter order) to better see the problems
    [Image: grafik.png]
  • check the interlacing flag (tff seems fine)
  • crop what should be inactive borders of the video
  • check whether the luma scaling is correctly signaled (pc vs. tv scale); seems fine
Due to the severance of the artifacts in this source (multiple times compressed, badly captured) and the general darkness of the source, I would think whether the source luma levels should be adjusted.
Then I would try how Deblocking and some other heavy filters (MCTemporalDenoise, BasicVSR++, SpotLess) influence the output.
Due to the bad shape of the source, there are no details any normal sharpener could emphasize.
[Image: grafik.png]
Assuming you don't plan to change the luma levels (make the whole thing brighter), I would probably use different filters&co on dark and bright areas of the image (= use some luma masking when using filters).
For the chroma you can try using HQDN3D, set luma strength to 0 and just use the chroma denoising.

=> The only thing one can do with such a source is trying to reduce compression artifacts while trying to keep some of the existing details.


Cu Selur
----
Dev versions are in the 'experimental'-folder of my GoogleDrive, which is linked on the download page.
Reply
#5
It’s already some improvement, thanks a lot
Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)